NI 9235/9236 Measurement System

The NI 9235 and NI 9236 are eight-channel C Series modules for simultaneous quarter-bridge strain measurement. NI 9235 provides 120 Ω bridge completion; NI 9236 provides 350 Ω bridge completion.

ManufacturerNational Instruments

Model9235/9236 Measurement System

Product TypeC Series strain/bridge input modules; catalog system configuration unspecified

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MeasurementQuarter-bridge strain

Channels8 simultaneous inputs per module

Resolution24-bit

Nominal sampling rate10 kS/s per channel

Bridge completionNI 9235: 120 Ω; NI 9236: 350 Ω

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Overview

Product overview

Key product information and technical features.

These modules measure dynamic strain across eight channels simultaneously. Synchronized acquisition supports comparison of measurements at different locations at the same instant, including impact testing.

Both modules include voltage excitation for quarter-bridge sensors and fit NI CompactDAQ or CompactRIO measurement systems. Choose the module according to the nominal strain-gage resistance, rather than channel count: both models have eight inputs.

This catalog record retains the combined “9235/9236 Measurement System” identity. The supplied information does not establish which module variant, chassis, or accessories belong to this particular configuration.

Simultaneous strain acquisition on all eight channels.
Built-in voltage excitation for quarter-bridge sensors.
Integrated quarter-bridge completion: 120 Ω on NI 9235 and 350 Ω on NI 9236.
Spring-terminal sensor connections.

Verified specifications

Technical data

Verified product specifications.

Analog input channels — each module	8 channels
ADC resolution — both models	24 bits
Sampling mode — both models	Simultaneous
Nominal maximum sampling rate — each channel	10 kS/s/channel
Input range — both models	±29.4 mV/V
NI 9235 quarter-bridge completion	120 Ω
NI 9236 quarter-bridge completion	350 Ω
Operating temperature — both models	-40 to 70 °C