JSM Chassis
Strain Measurement Hardware
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Simultaneous collection and analysis, fast Fourier transform, frequency analysis, real-time on-screen results |
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modular architecture, 8 channels per module, 64 channels per chassis, multiple-chassis connectivity |
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USB interface for long time data storage in host computer |
| Analysis of principal strain, shear strain, strain rate, pole figure, FFT |
| 10KHz maximum for 64-channel simultaneous sampling |
| Dialog box for simple and fast operation |
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Introduction
The JSM is scalable and high-performance strain measurement hardware with sensor connectivity for acquiring, measuring, displaying, recording, and processing of dynamic data. The hardware has three types: multi-channel chassis type, multi-channel car type, and low-density portable type.
The multichannel chassis type consists of chassis and acquisition modules. Each module woks with up to eight strain-input channels; each chassis works with up to eight modules for 64-channel simultaneous sampling. The chassis connects and transfer data to computer through USB interface. You can use StrainMaster to analyze data in computer.
Specifications
 Product name：
| Product Name* |
Maximum input channels |
Resistance |
Channels per module |
| JSM-××-A |
64 |
120Ω |
8 |
| JSM-××-B |
64 |
350Ω |
8 |
*Naming rules：
 Number of input channels＝number of modules X number of channels per module
Example：JSM-48-A is an A-type (120Ω) strain measurement hardware with 6 modules and 48 channels.
Channels per module………………………………………… …8 analog inputs
Maximum sample rate……………………………………………640 kS/s per chassis
Sample pattern………………………………… …………………multichannel simultaneous sampling
ADC resolution……………………………………… ……………24 bits
ADC type……………… ……………… …… ……… ……………Delta-Sigma (analog prefiltering)
Strain gauge resistance………………………………… ………120Ω for JSM-A series，350Ω for JSM-B series
Wheatstone bridge……………… ……………… ………………1/4 bridge
Conversion accuracy…… ………… …… …… …… … … ……3.5062 nV/V/LSB
Gain error………………… …………… …………… ……………0.02% (measurement condition: calibrated 25℃,±5℃)
Full scale range… ……… ……………………… …… …………±29.4mV/V（+62500uE/-55500uE）
Over-voltage protection…………… ……………… …… ………±30V
Stability…………………… ……… ……………………… ………gain drift 6 ppm/℃
Digital filter……………………………… …………………………user-defined low-pass filter
Chassis interface……………………………………… …………USB2.0
Power requirement………… … ……… …… ……… … ………11 ~ 30 VDC, 220 VAC
Operating temperature………… …………… ……… ……… …-40 ℃~ +70 ℃
Storage and transportation temperature…… ………… ………-40 ℃~ +85 ℃
Operating humidity…… ……………… ……… …………………10 to 90% RH, non condensing
Storage humidity……………………… ……… ……… …………5 to 95% RH, non condensing
Protection grade ……… ……………………… ……… …………IP40
Fron tpanel port…………………………………… ………………LPT port
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Industry Automation
