メロンテクノス List of Products and Services

A gas tube connector that allows for the attachment and detachment of thin tubes used for multi-point measurement, with the capability to do so every 16 ports. It features a guide to prevent incorrect connections and can be attached and detached with two knurled screws, ensuring a secure connection without the need for tools. This precision type can also be used for measurements with sensors. Additionally, one side is equipped with a screw hole for connection to panels and other surfaces. It has a proven track record of use in various applications, such as tube attachment and detachment during multi-point pressure measurements in wind tunnel experiments.

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• Piping Equipment
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The "SENJAS-SP / MP" is a multi-point pressure sensor with good response characteristics. It is also possible to install a low-pass filter card inside the sensor. By combining the common AD converter for SENJAS, the multi-point pressure measurement software SENJAS-P, and the automatic calibration option SENJAS-CAL, measurement accuracy can be improved by approximately twice. Configurations of up to 1344 channels are possible. It can be used for various applications such as wind tunnel experiments and pressure measurements in vehicles. "SENJAS-SP" In addition to the 32-channel unit, there is also an 8-channel unit, allowing for smaller configurations. The use of sensor sockets and interchangeable tube ports makes it easy to change tube sizes and sensor configurations. Maintenance costs and durations can also be significantly reduced. Configurations and expansions in units of 1 channel are possible. Each channel has an independent amplifier, and the power supply section is also independently structured to prevent any impact on other sensors in case of a sensor chip failure. It is also possible to store it in a compact EIA rack for multi-channel configurations. "SENJAS-MP" This series is mainly focused on space-saving. Up to 4 or 8 32-channel cards can be stored within a case. It has about two-thirds the volume of the SENJAS-SP.

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■ Precision specifications ideal for pressure sensors and similar applications ■ 10-port configuration ■ Equipped with screw holes for mounting on circuit boards or metal plates ■ Two types of port shapes available

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Valve control via USB interface from a computer. By only supplying power for 200 milliseconds during switching, heat generation is kept to a minimum. Automation of pressure calibration in combination with a pump-type calibrator. A one-touch connector is used at the tube connection point. A 2-valve configuration is available as an option.

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This is a multi-point stress measurement system composed of a terminal-equipped strain amplifier module and recording software. It allows for long-term measurement of strain and stress simultaneously with rotation speed and pulses. The standard compact package consists of 4 channels for voltage and 16 channels for strain, ensuring miniaturization and portability without sacrificing performance. Additionally, it is possible to configure the channel layout according to user preferences. The range is ±50000 με. Thanks to the performance of the 24-bit A/D converter, it can measure a range of ±20000 με with sufficient accuracy even after zero adjustment at ±30000 με.

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• Vibration and Sound Level Meter

Optimal multi-channel low-pass filter for anti-aliasing purposes ■ Widely usable for vibration and fluid measurement, among others ■ By implementing a 4-channel filter module in a 16-slot chassis, configurations of up to 64 channels are possible ■ -24dB/oct attenuation, Butterworth filter ■ Cut-off frequencies: 10, 20, 50, 100, 200, 500, 1000 Hz, and bypass ■ Cut-off frequency settings: Front panel (bulk setting for all channels) Remote setting via USB (bulk setting for all channels) ■ The chassis can be stored in an EIA rack (3U) ■ A compact chassis with 2 slots is also available (special specification: manual setting)

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• Vibration and Sound Level Meter

The multi-channel wind speed measurement system software is a data recording and analysis software for wind speed measurement experiments in uniform flow, boundary layer flow, and other conditions. It allows for the acquisition of multi-channel wind speed data along with reference wind speed and reference velocity pressure data. It can be combined with various existing wind speed sensors, but when used in combination with the wind speed sensor from Melon Technos Co., Ltd., it enables an efficient multi-point wind speed measurement system for wind environment evaluation experiments. This Windows-based software allows for reliable execution of experiments through real-time statistical monitoring display during data recording.

• Anemometer
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In pressure measurement on the surface of structures, pressure sensors installed via tubes may be used to measure fluctuating pressure. In this case, the transmission characteristics of the tube, which may not be a significant issue for average pressure, can greatly affect the results. Therefore, it is necessary to understand the transmission characteristics of the tube in advance. To accurately evaluate pressure fluctuations, it is necessary to back-calculate the pressure waveform at the measurement hole from the recorded waveform using the inverse transmission characteristics of the tube. The automatic tubing characteristic acquisition system is a system that can automatically and accurately acquire the characteristics of the pressure measurement tube during experiments in a short time. It consists of a pressure generation device, reference pressure sensor, AD converter, and dedicated software. Additionally, since it can display characteristic values in dB and acquire transmission characteristics between simple voltage inputs and outputs, it can also be used for measuring characteristics of filters and other devices. We offer standard types, standard types with extended options, and large types. For more details, please contact us or refer to the catalog.

• Analysis and prediction system
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This system is a data recording and analysis software specifically designed for wind pressure experiments. It allows for the acquisition of multi-channel pressure data along with reference signal data such as wind speed, wind pressure, and rotational speed. It can perform both average wind pressure measurements and fluctuating pressure measurements. The Windows-based software features automatic calibration using sensors and calibrators from Melon Technos, a frequency correction function to adjust tubing characteristics, engineering value conversion considering the bilinear characteristics of the sensors, and various analysis functions. Additionally, it is possible to build a user-oriented measurement system that integrates with control systems and enables fully automated measurements through the Melon Technos library, which can be called from command procedures, various programming languages, and other development tools. The software comes standard with real-time pressure waveform and color contour displays, tubing correction, and spectral analysis functions. For more details, please contact us or refer to the catalog.

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SENJAS-LTX allows you to build a highly practical general-purpose measurement system simply by providing a designated AD converter. It features an affordable price and simple operability that can be used immediately. The sampling method allows for a wide range of specifications, from a maximum time interval of 3600 seconds to a sampling frequency of 1 MHz. It is equipped with various recording functions, including pre-post triggers, combination triggers, repetitive trigger measurements, time-specified measurements, and level-tracking recording. For more details, please contact us or refer to the catalog.

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• Other Software

This is a low-cost 8-channel single-function distortion amplifier. It is a distortion amplifier equipped with a fixed range and a low-pass filter with a fixed cutoff frequency. When placing an order, you will need to specify the distortion range and the cutoff frequency of the low-pass filter. Zero balance can be performed using the push button on the front of the box. Additionally, a dedicated bridge box is also available as an option.

• Vibration and Sound Level Meter
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This wind speed sensor is designed for measuring the wind speed of gases such as air. It is an omnidirectional sensor in a horizontal plane and is particularly used for measuring wind speed on the surfaces of objects. The standard measurement range for wind speed is from 0 to 20 m/sec. The shape of the sensor module can be selected according to the purpose and application, with options including a rod-type (Type E) and a flexible type (Type F). By using a 32-channel sensor drive base unit, it is also possible to construct a multi-channel wind speed measurement system.

• Anemometer
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The "Impedance Meter for Biopotential Electrodes" is a compact and low-cost impedance measurement device for biopotential electrodes. It can be used for impedance measurement during the attachment of various biological signals. In addition to standard pin-type terminals, it can also be used with DIN terminal type electrodes.

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The audio-visual stimulus system EFRP-ST is designed to meet the creative needs of researchers, featuring simple sound stimuli for event-related potential measurement and auditory experiments, as well as complex sequence stimuli and video display capabilities. - High-performance graphics with a refresh rate of 360Hz and a response speed of 1ms. - Variable refresh rate synchronization eliminates tearing and stuttering during image presentation. - Supports sound stimuli, still image stimuli, and sound-image composite video stimuli. - A cost-effective image presentation system can be created by combining optical sensors with vertical synchronization on standard monitors. - Easy to set trigger thresholds based on display emission states and emission patterns. - Capable of simultaneous sound and image stimulation, making it ideal for multimedia-related research. - Dedicated hardware and stimulus-specific software enable high-speed repetitive stimulation and precise synchronization timing. - Equipped with specialized functions for easy creation and editing of stimulus sounds, setting trigger positions for videos, and constructing stimulus patterns. - By classifying stimulus forms into nine types, it efficiently accommodates diverse experimental sequences.

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This is a 1U size BNC terminal block that can be mounted on an EIA standard rack. It can be used for input and output to AD converters and DA converters. There are sockets for embedding attenuators before the AD converter and internal switches for bypass capacitor insertion provided for each channel (0.01μF, 0.1μF). It can also be used for signal branching and channel branching.

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EFRP-RT is a physiological and psychological engineering analysis support software that enables the measurement of various biological information with a maximum of 128 channels and a sampling frequency of up to 50 kHz. It is equipped with simultaneous measurement and a wide range of analysis functions for brain waves, electrocardiograms, electromyograms, environmental information, and more. In synchronous averaging recording, it also supports high-speed synchronous averaging, such as for auditory brainstem responses (ABR). Additionally, it includes analysis functions for event-related potentials (EFRP), which are promising for the temporal evaluation of physiological and psychological states related to visual information, making it the culmination of Melon Technos' physiological and psychological analysis support tools.

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Active electrodes can be connected to many EEG amplifiers with DIN terminals. They feature high-quality electrode connectors that allow for easy one-touch insertion and removal, and the sintered type can easily restore the electrode surface condition by polishing the surface. They can be used for various purposes in ergonomics, psychometrics, and basic medical research, and can be made compatible with active electrodes for bioamplifiers manufactured by Melon Technos Co., Ltd. There are five types of electrode drive units available, ranging from 1 channel to 32 channels. Ring-type electrodes can also be used with optional caps. Additionally, an active electrode development kit that can connect to user-developed electrodes is also available (please inquire).

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There are two series available: the "integrated type," which has an electrode box built into the main unit, and the "separate type," where the main unit and the electrode box are separated. The separate type is ideal for measurements in shielded rooms and various laboratories. The integrated type is available in 1ch, 3ch, and 8ch types, while the separate type offers 8ch and 32ch options. Due to its card-type amplifier unit, it is possible to reduce the number of cards implemented, keeping costs down while maintaining expandability. This is a bioamplifier specifically designed for research in industrial product development, animal experiments, and psychotechnology. Since it is intended for research, it does not target specific biological signals, offering a wide amplification range from 500 to 50,000 times (with the separate type reaching up to 100,000 times), and is equipped with multi-stage high-pass filters and time constants. It is optimal for the analysis and evaluation of biological signals in fields such as ergonomics, psychotechnology, and basic medical research.

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