Keysight DAQ970A User Guide

Strain
This section describes how to configure the selected channel for strain measurements from the front panel.
When a force is applied to a body, the body deforms. The deformation per unit length is called strain (ε).
Strain may be either tensile (+) or compressive (-).
The DAQ970A supports two types of strain measurements:
Bridge configuration
Direct resistive method
Once you have configured strain measurement function in all strain channels, press [Home] > Strain Offset
to measure or specify the unstrained offset that will be subtracted from strain measurements before the
strain conversion is performed.
Strain offset
Bridge Configuration
Full and half bridge in bending arrangement
Full and half bridge in Poisson arrangement
Full bridge in bending Poisson arrangement
Quarter bridge arrangement
Full and half bridge in bending arrangement
This section describes how to configure the selected channel for full and half bending bridge strain gage
measurements from the front panel.
1.
Connect bridge configuration source to the module's screw terminals.
Full bending bridge:
Half bending bridge:
[Channel] Menu Overview
96 Keysight DAQ970A User's Guide

Keysight DAQ970A Specifications

General

Scan Rate	Up to 450 channels/sec
Connectivity	USB, LAN, GPIB (optional)
Display	4.3-inch color LCD
Operating Temperature	0 °C to 50 °C
Number of slots	3 slots
Measurement Types	DCV, ACV, DCI, ACI, 2-wire resistance, 4-wire resistance, frequency, temperature, capacitance
Voltmeter	6.5 digit
Resolution	22 bits
Memory	Non-volatile memory