キャテック List of Products and Services

Introducing the "Acoustic camera Hextile/Multitile" that we handle. "Hextile" is a lightweight aluminum hexagonal microphone array module with MEMS microphones arranged in a spiral pattern. By adding "Hextile," it can be expanded into a high-performance real-time sound source exploration system known as "Multitile." It displays high-resolution color maps analyzed using a beamforming method processed at high speed in real-time. 【Features】 ■ High dynamic range achieved with MEMS microphones ■ Equipped with two types of beamforming methods ■ Virtual microphone/Acoustic eraser functions ■ Frame rate: 15FPS/45FPS ■ Measurement distance: 0.5m to 200m *For more details, please refer to the PDF document or feel free to contact us.

• Vibration and Sound Level Meter
• Analysis and prediction system
• Environmental Survey

The "CAT-System Pro" is an integrated measurement system that operates on a computer with a front-end (A/D board) for data recording. While recording noise, vibration, etc., it can perform real-time analyses such as FFT (low frequency, high frequency), 1/N octave analysis, and order analysis, while simultaneously saving time data (throughput). Additionally, it is possible to record distortion, temperature, images, and more together. With the throughput disk function, simultaneous data saving is also possible, allowing for post-analysis where you can change the number of sampling points or windows to analyze the recorded data. 【Features】 ■ Multi-job system using multi-threading - Simultaneous measurement of sound/vibration/distortion/temperature/rotation signals, etc. ■ Measurement video recording - Playback of camera footage linked to waveforms is possible ■ Comment and event information input function *For more details, please refer to the PDF materials or feel free to contact us.

• Analysis and prediction system
• Environmental Survey
• Vibration and Sound Level Meter

The "CAT-RVM" is a remote monitoring data logger system that uses NI's CompactRIO and an internet connection to measure the vibration, temperature, rotation speed, and other parameters of equipment located remotely, allowing for the monitoring of the equipment's operational status. This system uses a real-time operating system, so if the equipment's power is temporarily cut off for any reason, it can automatically resume measurements once the power is restored. 【Features】 - Measures and performs anomaly detection on the vibration, temperature, rotation speed, etc., of remote equipment while performing specified calculations. - Automatically sends error outputs such as alarms and warning emails to registered addresses when set thresholds are exceeded. *For more details, please refer to the PDF document or feel free to contact us.

• Vibration and Sound Level Meter
• Environmental Survey
• Analysis and prediction system

The "Acoustic camera CAM64/CAM1K" is a compact and lightweight microphone array with high-sensitivity digital MEMS microphones arranged in a grid pattern, featuring 64 channels or 1024 channels. It enables high-resolution near-field acoustic holography (NAH) analysis with a 2 cm microphone spacing. Acoustic holography calculates acoustic intensity from sound pressure, displaying color maps (acoustic intensity, sound pressure, particle velocity) with high resolution across low to high frequencies, unaffected by wavelength. 【Features】 ■ Two types of microphone arrays - Compact and lightweight type: 64 channels, 17×17 cm, weight 0.3 kg, frequency range: 20 Hz – 8.5 kHz - General-purpose type: 1024 channels, 64×78.5 cm, weight 4.9 kg, frequency range: 20 Hz – 8.5 kHz ■ Microphone spacing: 2 cm ■ Analysis functions: Steady-state NAH, transient NAH (post-analysis), sound pressure color map, BF (real-time) *For more details, please refer to the PDF document or feel free to contact us.

• Vibration and Sound Level Meter
• Analysis and prediction system
• Environmental Survey

"CAT-SQ" is software that reads measurement data files recorded in the "CAT-System" and calculates sound quality evaluation metrics. Generally, the level of noise is used as a criterion for evaluating mechanical products. However, recently, rather than simply reducing noise, it has become necessary in manufacturing to create pleasant sounds, sounds that convey tranquility, and sounds that evoke a sense of authenticity. These physical parameters, which are sound quality evaluation metrics, can be obtained as psychoacoustic evaluations (matrix) similar to noise levels. 【Features】 <Main sound quality evaluation metrics that can be calculated> ■ Loudness N [sone] ■ Sharpness S [acum] ■ Fluctuation Strength F [vacil] ■ Roughness R [asper] ■ Tonality AdT [%] *For more details, please refer to the PDF materials or feel free to contact us.

• Vibration and Sound Level Meter
• Environmental Survey
• Analysis and prediction system

Our company handles the "Vibration/Noise Automatic Measurement System." This system uses NI's A/D board to automatically measure vibrations, noise, and rotation pulses from fans (motors), etc. The signal generator (PWM) and DC power supply (voltage) are controlled from a computer. For each measurement mode such as background noise, steady state, rise, and fall, test patterns are created to measure vibrations, noise, etc., and perform FFT, octave analysis, tracking analysis (constant ratio/constant width), etc. *For more details, please refer to the PDF materials or feel free to contact us.

• Vibration and Sound Level Meter
• Environmental Survey
• Analysis and prediction system

The knocking sound of the engine can be detected using acceleration sensors and combustion pressure sensors, but in places like engine durability testing, detection using only non-contact microphones is expected. Here, the application of machine learning is considered, but it is difficult to collect a large amount of knocking sound as training data. Therefore, we prepared the sound of striking metal cans, created a framework to extract the characteristics of impact sounds, applied this framework to knocking sounds, and achieved a recognition accuracy of about 80% for engine knocking sounds. 【Features】 ■ Evaluation function: ReLU function ■ Pooling function: Max pooling function ■ Discrimination: Softmax function ■ Fully connected layer: Dropout *For more details, please refer to the PDF document or feel free to contact us.

• Analysis and prediction system
• Environmental Survey
• Vibration and Sound Level Meter

"CAT-CMP" is a learning-based comparator software that makes judgments on vibration/noise data using statistical methods. It automates the inspection of abnormal sounds and vibrations in products, which previously relied on the operator's senses. Since offline post-analysis is possible, you can analyze by changing conditions such as the target frequency range and thresholds, allowing you to determine the thresholds. 【Features】 ■ Capable of handling a variety of products by registering judgment conditions ■ Complex judgments are possible by changing measurement conditions ■ If there is accumulated OK/NG data, baseline data can be calculated from that data ■ If the phenomenon is reproducible, having baseline data for each NG pattern allows not only for OK/NG judgments but also for the identification of NG content *For more details, please refer to the PDF materials or feel free to contact us.

• Environmental Survey
• Vibration and Sound Level Meter
• Analysis and prediction system

This system (CAT-System) is a vibration and noise measurement system composed of a signal input unit equipped with A/D functionality and software that operates on a computer. By changing the signal input unit, it can also be used for purposes other than mechanical vibration and noise measurement. This system excels in integration with other mode analysis tools, MATLAB, EXCEL, etc., allowing for a seamless flow from measurement to analysis with simple operations. Additionally, it is designed for easy customization, enabling users to build their own bespoke systems based on this system.

• Vibration and Sound Level Meter
• Other measuring instruments
• Other Software

CAT-SQ for CAT-System is a system that reads measurement data files recorded by Catech's CAT-System and other measurement systems, and calculates psychoacoustic evaluation metrics. Currently, only the magnitude of noise levels is used as an evaluation criterion, but rather than indiscriminately reducing noise levels, it has become necessary to create sounds that feel pleasant, sounds that evoke a sense of tranquility, and sounds that embody those qualities.

• Other analytical equipment
• Other Software