大王電機 List of Products and Services

The "DSVI-MA/MB" is an abnormal noise inspection device that automatically determines the quality of sound and vibration using an inspection algorithm based on the Mahalanobis-Taguchi method (MT method). By replacing the inspection of sound and vibration, which relied on human senses, with this device, quantitative automatic inspection is achieved. Inspection standards can be easily created from 40 good product data, and an immediate improvement in the accuracy and efficiency of abnormal noise inspection can be expected after installation. The "DSVI-MB" supports up to 4 channels of input. It can determine quality from sensors located in multiple areas. Simultaneous inspection of sound and vibration, as well as vibration inspection in three axial directions, is possible. Additionally, the noise-canceling function removes disturbances such as sudden noise and constant noise, enabling accurate and stable inspections. ★ A collection of case studies is currently being offered. Please refer to the basic information section for details. 【Features】 ■ Easy creation of inspection standards, ready for immediate use ■ Space-saving design equipped with all necessary functions for inspection ■ Frequency analysis can be performed on-site immediately after measurement ■ Mounting fixtures for acceleration sensors are also available (optional) * You can view the catalog and case studies from the "PDF Download" section. Please feel free to contact us for inquiries.

• Measurement and Inspection

Our "Noise Inspection Device" utilizes an inspection algorithm based on the Maharano Vista Guchi method, allowing for automatic and quantitative inspection of sound and vibration quality. We have recently added a noise-canceling feature to the multi-channel noise inspection device "DSVI-MB," which uses multiple accelerometers and microphones. Previously, depending on the inspection environment, operational sounds from surrounding equipment, noise, and vibrations from conveyors could interfere as noise, making accurate inspections difficult. By using the new noise-canceling feature, we can eliminate sudden and constant noise, enabling precise and stable inspections. *For more details, please refer to the PDF document or feel free to contact us.*

• others

Our "Abnormal Sound Inspection Device" utilizes an inspection algorithm based on the Maharano Vista Guchi method to automatically and quantitatively inspect the quality of sounds and vibrations. Here, we introduce a case where the "Abnormal Sound Inspection Device" was applied to the inspection of abnormal sounds in speakers. Traditionally, the presence of abnormal sounds was determined by the auditory perception of the operator. In this case, automatic inspection was achieved by playing inspection sounds from the abnormal sound inspection device to a wireless speaker. [Case Study] ■ Challenge - Previously, there was variability in determination due to inspections based on the operator's auditory perception. ■ Application Results - By using DSVI-MA, automatic detection of abnormal sounds was achieved with a microphone or accelerometer. *For more details, please refer to the PDF document or feel free to contact us.

• others

Our "Noise Inspection Device" utilizes an inspection algorithm based on the Maharano Vista Guchi method to automatically and quantitatively inspect the quality of sound and vibration. We would like to introduce a case where the "Noise Inspection Device" was applied to the noise inspection of air conditioning compressors. Traditionally, the presence of abnormal sounds and vibrations was determined by the auditory and tactile senses of the operator. In this case, simultaneous inspection of sound and vibration was achieved using a microphone and an accelerometer. [Case Study] ■Challenge - Previously, there was variability in judgment due to inspections relying on the auditory and tactile senses of the operator. ■Application Results - By using DSVI-MB, simultaneous inspection of sound and vibration was achieved with a microphone and an accelerometer. *For more details, please refer to the PDF document or feel free to contact us.

• others

Our "Noise Inspection Device" utilizes an inspection algorithm based on the Maharano Vista Guchi method to automatically and quantitatively inspect the quality of sound and vibration. Here, we introduce a case where the "Noise Inspection Device" was applied to the inspection of transformer humming sounds. By using this device to measure vibrations, we can automate inspections in a soundproof room. [Case Study] ■ Applicable Product: Noise Inspection Device "DSVI-MA" ■ Results - By using this device to measure vibrations, inspections in a soundproof room can be automated. *For more details, please refer to the PDF document or feel free to contact us.

• others

The "DSVI-MB" is an abnormal sound inspection device that automatically determines the quality of sound and vibration using an inspection algorithm based on the Mahalanobis-Taguchi method (MT method). By measuring sound and vibration with up to 4 channels and determining their quality, it is possible to identify the source of abnormal sounds and vibrations. Additionally, it can simultaneously measure sound and vibration, as well as measure vibrations in three axial directions. By simply preparing data from 40 good units, you can easily create inspection standards, and an immediate improvement in the accuracy and efficiency of abnormal sound inspections can be expected after implementation. ★ Please refer to the basic information section for details. 【Features】 ■ Easy creation of inspection standards, ready for immediate use ■ Space-saving design with all necessary functions for inspection ■ Frequency analysis can be performed on-site with the measured data ■ Mounting fixtures for acceleration sensors are also available (optional) * You can view the catalog and case studies from the "PDF Download" section. Please feel free to contact us with any inquiries.

• Measurement and Inspection

The "DSVI-MA" is a noise inspection device that automatically determines the quality of sound and vibration using an inspection algorithm based on the Mahalanobis-Taguchi method (MT method). By replacing the inspection of sound and vibration, which relied on human senses, with this device, quantitative inspections can be conducted, preventing variability in judgments. You can easily create inspection standards by preparing just 40 good product data, and an immediate improvement in the accuracy and efficiency of noise inspections can be expected after implementation. Additionally, the "DSVI-MB," which supports input from up to 4 channels of sound and vibration, is also available. It can determine quality from sensors at multiple locations. Simultaneous inspection of sound and vibration, as well as vibration inspection in three axial directions, is possible. ★ A collection of case studies is currently being offered. Please refer to the basic information section for details. 【Features】 ■ Easy creation of inspection standards, ready for immediate use ■ Space-saving design equipped with all necessary functions for inspection ■ Frequency analysis can be performed on-site at the time of measurement ■ Mounting fixtures for acceleration sensors are also available (optional) * You can view the catalog and case studies from the "PDF Download" section. Please feel free to contact us with any inquiries.

• Measurement and Inspection

Our "Noise Inspection Device" utilizes an inspection algorithm based on the Maharano Vista Guchi method to automatically and quantitatively inspect the quality of sound and vibration. Here, we introduce a case where the "Noise Inspection Device" was applied to detect abnormalities in machining equipment. It detects processing defects caused by chipping or wear of blades in cutting machines and grinding machines through the sound and vibration during processing. [Case Study] ■ Applied Product: Noise Inspection Device "DSVI-MA" ■ Application Results - Detects processing defects caused by chipping or wear of blades in cutting machines and grinding machines through sound and vibration during processing. *For more details, please refer to the PDF document or feel free to contact us.

• others

Our "Noise Inspection Device" utilizes an inspection algorithm based on the Maharano Vista Guchi method to automatically and quantitatively inspect the quality of sound and vibration. Here, we introduce a case where the "Noise Inspection Device" was applied to the noise inspection of small motors used in optical products. During shooting, the operational sounds of small motors used for the shutter, focus, and zoom can have an impact, making sound inspection necessary. By using this device, the process where operators inspect in a soundproof box can be automated. [Case Study] ■Challenge - During shooting, the operational sounds of small motors used for the shutter, focus, and zoom can have an impact, making sound inspection necessary. ■Application Result - By using the Noise Inspection Device, the process where operators inspect in a soundproof box can be automated. *For more details, please refer to the PDF document or feel free to contact us.

• others

Our "Noise Inspection Device" utilizes an inspection algorithm based on the Maharano Vista Guchi method to automatically and quantitatively inspect the quality of sound and vibrations. Here, we introduce a case where the "Noise Inspection Device" was applied to the noise inspection of voice output boards. It detects defects that cause abnormal sounds due to issues with the IC chips on the board. Inspecting products produced in large quantities through human auditory means requires significant effort and increases the likelihood of oversight; however, using this device allows for stable quality inspections. [Case Study] ■ Challenge - Inspecting products produced in large quantities through human auditory means requires significant effort and increases the likelihood of oversight. ■ Application Results - Using the Noise Inspection Device enables stable quality inspections. *For more details, please refer to the PDF document or feel free to contact us.

• others

Our "Noise Inspection Device" utilizes an inspection algorithm based on the Maharano Vista Guchi method to automatically and quantitatively inspect the quality of sound and vibration. Here, we introduce a case where the "Noise Inspection Device" was applied to the vibration inspection of exhaust fans. Traditionally, abnormal vibrations were inspected by having operators directly touch the rotating products, which posed safety concerns. In this case, by using a fixture that can automatically attach and detach an accelerometer, we can achieve automatic inspection in combination with this device. [Case Study] ■ Issue - Traditionally, abnormal vibrations were inspected by having operators directly touch the rotating products, which posed safety concerns. ■ Application Results - By using a fixture that can automatically attach and detach an accelerometer, automatic inspection becomes possible when combined with the noise inspection device. *For more details, please refer to the PDF document or feel free to contact us.

• others

Our "Abnormal Noise Inspection Device" utilizes an inspection algorithm based on the Maharano Vista Guchi method to automatically and quantitatively inspect the quality of sounds and vibrations. We would like to introduce a case where the "Abnormal Noise Inspection Device" was applied to the abnormal noise inspection of drive units for electric assist bicycles. Traditionally, after assembly, operators would listen to the sounds to make judgments, but by using this device, we can quantitatively detect products that emit sounds different from normal ones. 【Case Study】 ■ Issues - The occurrence of abnormal noises during use in electric assist bicycles significantly impacts product value and can lead to complaints. - Traditionally, operators would listen to sounds to make judgments after assembly. ■ Application Results - By using the abnormal noise inspection device, we can quantitatively detect products that emit sounds different from normal ones. *For more details, please refer to the PDF document or feel free to contact us.

• others

Our "Noise Inspection Device" utilizes an inspection algorithm based on the Maharano Vista Guchi method to automatically and quantitatively inspect the quality of sound and vibration. Here, we introduce a case where the "Noise Inspection Device" has been applied to the noise inspection of automotive components. In recent years, with the increasing demand for high quality in automobiles, the requirements for the sound and vibration of components that incorporate motors have been rising. By using this device for inspections of motors alone or for units after motor integration, we can stabilize quality. [Case Study] ■Challenge - In recent years, with the increasing demand for high quality in automobiles, the requirements for the sound and vibration of components that incorporate motors have been rising. ■Application Results - By using the Noise Inspection Device for inspections of motors alone or for units after motor integration, we can stabilize quality. *For more details, please refer to the PDF document or feel free to contact us.

• others

Our "Noise Inspection Device" utilizes an inspection algorithm based on the Maharano Vista Guchi method to automatically and quantitatively inspect the quality of sounds and vibrations. Here, we introduce a case where the "Noise Inspection Device" was applied to the noise inspection of motors for air conditioner outdoor units. In the shipping inspection of motors for air conditioner outdoor units, traditionally, operators would use a stethoscope to determine if there were any abnormal sounds or vibrations. By using this device, the inspection can be fully automated, leading to a reduction in processing time. [Case Study] ■ Challenge - Traditionally, operators would use a stethoscope to determine if there were any abnormal sounds or vibrations. ■ Application Result - By using the Noise Inspection Device, the inspection can be fully automated, resulting in a reduction in processing time. *For more details, please refer to the PDF document or feel free to contact us.

• others

Our "Noise Inspection Device" utilizes an inspection algorithm based on the Maharano Vista Guchi method to automatically and quantitatively inspect the quality of sound and vibrations. We would like to introduce a case where the "Noise Inspection Device" was applied to inspect the output sound of a voice guidance device. In this case, the remote control with voice guidance functionality previously required an operator to listen for abnormalities such as muffled or distorted sound due to speaker assembly issues. By using a directional microphone and this device, we can achieve quantitative automatic inspection. [Case Study] ■ Challenges - Previously, operators had to listen for abnormalities such as muffled or distorted sound due to speaker assembly issues. ■ Application Results - By using a directional microphone and the noise inspection device, we can achieve quantitative automatic inspection. *For more details, please refer to the PDF document or feel free to contact us.

• others

Our "Abnormal Noise Inspection Device" utilizes an inspection algorithm based on the Maharano Vista Guchi method to automatically and quantitatively inspect the quality of sound and vibration. We would like to introduce a case where the "Abnormal Noise Inspection Device" was applied to the inspection of abnormal noises in multifunction devices. It inspects whether there are any abnormal sounds when the finished product operates in various modes, whereas previously, operators conducted auditory inspections in a soundproof room. In this case, abnormal sounds are detected by using an accelerometer to measure vibrations. This allows for a reduction in equipment costs, such as the need for a soundproof room. [Case Study] ■ Challenges - Previously, operators conducted auditory inspections in a soundproof room. ■ Application Results - Abnormal sounds are detected by using an accelerometer to measure vibrations. - Equipment costs, such as the need for a soundproof room, can be reduced. *For more details, please refer to the PDF document or feel free to contact us.

• others

Our "Noise Inspection Device" utilizes an inspection algorithm based on the Maharano Vista Guchi method to automatically and quantitatively inspect the quality of sounds and vibrations. Here, we introduce a case where the "Noise Inspection Device" was applied to the noise inspection of air conditioner indoor units. In the shipping inspection of indoor units for consumer air conditioners, traditionally, operators listened to the operational sounds for inspection. This method leads to variability in human perception, resulting in unstable quality; however, by using this device, quantitative inspection becomes possible. 【Case Study】 ■ Issues - In the shipping inspection of indoor units for consumer air conditioners, operators traditionally listened to the operational sounds for inspection. - Variability in human perception leads to unstable quality. ■ Application Results - Quantitative inspection is possible by using the Noise Inspection Device. *For more details, please refer to the PDF document or feel free to contact us.

• others

At Daioh Electric Co., Ltd., we are offering a collection of case studies titled "Application Examples of Noise Inspection Devices," which includes examples of quantifying and automating the subjective sound and vibration inspections using noise inspection devices. The collection features a total of 11 cases, including "Noise Inspection of Air Conditioner Indoor Units," "Noise Inspection of Multifunction Devices," and "Inspection of Output Sound from Voice Guidance Devices." Our "Noise Inspection Device" has achieved the capability to quantitatively and automatically inspect the quality of sound and vibration through an inspection algorithm utilizing the Maharano Vista Guchi method. [Contents (Excerpt)] ■ What is a Noise Inspection Device? ■ Case 1: Noise Inspection of Air Conditioner Indoor Units ■ Case 2: Noise Inspection of Multifunction Devices ■ Case 3: Inspection of Output Sound from Voice Guidance Devices ■ Case 4: Noise Inspection of Motors for Air Conditioner Outdoor Units *For more details, please refer to the PDF document or feel free to contact us.

• others

Point 1 "Consolidated acceptance regardless of manufacturer! We handle all electrical, mechanical, and environmental equipment." There is no need to change calibration vendors or go through procedures with various manufacturers' measuring instruments! Our company will handle everything in one go. Point 2 "Achieving a short delivery time of 5 business days from receipt to shipment." Since we borrow measuring instruments that are essential for your business operations, we ensure a speedy turnaround of 5 business days as a principle. Point 3 "ISO 9001 certified company with a repeat rate of over 80% due to high-quality service." We have earned high trust with a repeat rate of over 80% from more than 2,000 clients annually. Point 4 "Pickup service / On-site calibration service." No time for packing, mailing, or unpacking? ⇒ [Pickup service] *Kansai area only. Is it difficult to remove the measuring instruments or are there too many? ⇒ [On-site calibration service] *Typically, we handle deliveries from customers. Point 5 "Peace of mind with adjustment and repair support in case of failure!" If your measuring instrument fails, we will respond according to your needs: 1. Repair support 2. Partial pass support (change of calibration points and judgment standards) 3. Calibration after repair.

• others

Any measuring instrument will experience discrepancies in values over time, and continuing to use it as is can have a significant impact on product quality. In our "Measuring Instrument Calibration Service," we verify accuracy, functionality, and operation using standard instruments traced to national standards. Furthermore, with teamwork and flexible proposals, we respond to various cases such as on-site service, pickup, and adjustments. Please feel free to consult with us. [List of Supported Calibration Models] ■ Environmental and Physical Measuring Instruments Temperature and Humidity Recorders, Thermohygrometers, Barometers, Lux Meters, Vibration Meters, Water Quality Meters, Sound Level Meters, Hydrometers, Anemometers *For more details, please refer to the PDF document or feel free to contact us.

• others

Any measuring instrument will experience deviations in values over time, and continuing to use it as is can have a significant impact on product quality. Our "Measuring Instrument Calibration Service" verifies accuracy, functionality, and operation using standard instruments traced to national standards. Furthermore, with teamwork and flexible proposal capabilities, we respond to various cases such as on-site visits, pickups, and adjustments. Please feel free to consult with us. [List of Supported Calibration Models] Tachometers, Stroboscopes, Static Strain Gauges, Dynamic Strain Gauges, Tensile Testing Machines, Film Thickness Gauges, Force Gauges, Load Cells, X-Y Recorders, Temperature and Humidity Data Loggers, Thermometers, Temperature Indicators, Temperature Controllers, Barometers, Constant Temperature Baths, Constant Humidity Baths, Pressure Testing Instruments, Dielectric Strength Testers, Dot-type Temperature Recorders, Dot-type Recorders, Data Loggers, Low Resistance Testers, Digital Thermometers, Digital Surface Thermometers, Electromagnetic Oscilloscopes, Electronic Load Devices, Noise Simulators, Hybrid Recorders, Pen Recorders, Memory Recorders, DC Constant Voltage and Constant Current Power Supplies. *For more details, please refer to the PDF document or feel free to contact us.

• others

Any measuring instrument will experience discrepancies in values over time, and continuing to use it as is can have a significant impact on product quality. Our "Measuring Instrument Calibration Service" verifies accuracy, functionality, and operation using standard instruments traced to national standards. Furthermore, with teamwork and flexible proposal capabilities, we respond to various cases such as on-site service, pickup, and adjustments. Please feel free to consult us. 【List of Supported Calibration Models (Excerpt)】 ■ Torque and Mass Mass scales, tension meters, torque drivers, torque meters, Torque wrenches, force gauges, push-pull gauges, and weights. *For more details, please refer to the PDF document or feel free to contact us.

• others

Any measuring instrument will experience discrepancies in values over time, and continuing to use it as is can have a significant impact on product quality. Our "Measuring Instrument Calibration Service" verifies accuracy, functionality, and operation using standard instruments traced to national standards. Furthermore, with teamwork and flexible proposal capabilities, we respond to various cases such as on-site service, pick-up, and adjustments. Please feel free to consult us. 【List of Calibration-Compatible Models (Excerpt)】 ■ Surveying and Gauges Auto levels, angle meters, metal squares, metal straightedges, three-dimensional measuring machines, cylinder gauges, leveling instruments, squares, stretch measuring microscopes, dial gauges, projectors, transits, screw plug gauges, calipers, height gauges, scissors gauges, pin gauges, V-blocks, block gauges, hole tests, micrometers, micrometer standards, tape measures, ring gauges. *For more details, please refer to the PDF document or feel free to contact us.

• others

Any measuring instrument will experience discrepancies in values over time, and continuing to use it as is can have a significant impact on product quality. Our "Measuring Instrument Calibration Service" verifies accuracy, functionality, and operation using standard instruments traced to national standards. Furthermore, with teamwork and flexible proposal capabilities, we respond to various cases such as on-site service, pickup, and adjustments. Please feel free to consult us. 【List of Calibration-Compatible Models (Excerpt)】 ■ Circuit Element Instruments Impedance Analyzers, LCR (LCZ) Meters, LF Impedance Analyzers Gauss Meters, Curve Tracers, Ultra-Insulation Meters, Semiconductor Parameter Analyzers, Milliohm Meters *For more details, please refer to the PDF document or feel free to contact us.

• others

Any measuring instrument will experience deviations in values over time, and continuing to use it as is can have a significant impact on product quality. Our "Measuring Instrument Calibration Service" verifies accuracy, functionality, and operation using standard instruments traced to national standards. Furthermore, with teamwork and flexible proposal capabilities, we respond to various cases such as on-site service, pickup, and adjustments. Please feel free to consult us. 【List of Supported Calibration Models (Excerpt)】 ■ High-Frequency Instruments RF Power Amplifiers, S-Parameter Test Sets, High-Frequency Resistive Attenuators, High-Frequency Power Meters Frequency Synthesizers, Spectrum Analyzers, Sweep Oscillators, Various Amplifiers, Electric Field Strength Meters Noise Figure Meters, Noise Voltage Meters (Noise Meters), Standard Signal Generators, TV Pattern Generators Vector Voltmeters, Radio Equipment Testers, Network Analyzers, Network Spectrum Analyzers Pulse Generators, Measuring Receivers, Modulation Analyzers, Gain and Phase Meters, Level Meters *For more details, please refer to the PDF document or feel free to contact us.

• others

Any measuring instrument will experience discrepancies in values over time, and continuing to use it as is can have a significant impact on product quality. Our "Measuring Instrument Calibration Service" verifies accuracy, functionality, and operation using standard instruments traced to national standards. Furthermore, with teamwork and flexible proposal capabilities, we respond to various cases such as on-site service, pickup, and adjustments. Please feel free to consult with us. 【List of Calibration-Compatible Models (Excerpt)】 ■Electrical Instruments RC Oscillator, FET Probe, Electrometer, Oscilloscope Audio Analyzer, Clamp Meter, Frequency Counter, Frequency Meter Insulation Resistance Meter, Ground Resistance Meter, Time Interval Analyzer, DC Calibration Device DC Voltage and Current Generator, Resistors, Digital Oscilloscope Digital Power Meter, Digital Multimeter, Voltmeter, Electronic Voltmeter Ammeter, Current Probe, Power Meter, Distortion Meter, Function Generator Transformer, Leakage Current Meter, Power Factor Meter, Logic Analyzer, Universal Counter *For more details, please refer to the PDF document or feel free to contact us.

• others

We perform calibration of various measuring instruments, regardless of the manufacturer, including electrical, mechanical, and optical systems, as well as temperature, humidity, and pressure. After collection by our delivery vehicle, we deliver to customers within a standard of 5 business days. For instruments that we cannot calibrate in-house, we offer a one-stop service by requesting calibration from partner companies. Please feel free to consult us regarding urgent calibration requests or calibration of instruments not listed in our supported models. 【Features】 ■ No hassle of shipping as we collect with our delivery vehicle ■ Support for on-site calibration and urgent calibration ■ Repair services are also available *Collection is limited to the Kansai area. *For more details, please refer to the PDF document. Feel free to contact us as well.

• Work tools