Products for USB Sensing and Control

Products for USB Sensing and Control


Unit 1 - 6115 4 St SE
Calgary AB  T2H 2H9
+1 403 282-7335

Half-bridge Aluminum Torque Strain Gauge (Bag of 2)

ID: 3143_0

Designed for aluminum structures, this strain gauge comes in the half-bridge shear configuration.

Expected restock date: October 13, 2017


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Qty Price
5 $12.00
10 $11.50
25 $11.25
50 $11.00
100 $10.75

A strain gauge is a small sensor whose resistance changes depending on the strain experienced by the structure it is attached to. They are similar to Load Cells, but are useful for applications where the structure has already been built. For example, you could use a strain gauge and a bridge interface to measure the strain on various segments of the chassis of a robot or vehicle.

For more information on the different types of strain gauges and how to properly install them, have a look at our Strain Gauge Primer.


This strain gauge is designed to be used with aluminum structures. It can be used with other materials, but using aluminum alloys will result in the lowest sensitivity to changes in temperature. The double shear pattern makes it easy to mount for torsional strain measurement.


This is a half-bridge strain gauge. You can either use two to form a full-bridge circuit, or use resistors with a half-bridge. For more information on bridge circuits, see the Strain Gauge Primer. Strain gauges require power and produce a small voltage differential when under load. In order to read this small signal, you'll need an amplifier or a board with a high-precision analog-to-digital converter. See the "Compatible Products" tab for a list of Phidgets that will connect to this strain gauge.

Comes Packaged with:

  • Strip of six solder pads

Product Specifications

Sensor Properties
Controlled By Bridge Input
Sensor Type Torque Half-bridge Strain Gauge
Strain Gauge Mount Type Aluminum
Electrical Properties
Resistance Value (per quarter-bridge) 1 kΩ
Physical Properties
Backing Material Phenolic Resin
Active Area Length 3 mm

Bridge Interfaces


Load cells and strain gauges produce a very tiny voltage differential and must be read by a high-resolution analog-to-digital converter. The bridge interfaces in the table below can be used to interface them. For more information on how to properly attach a strain gauge, see the Strain Gauge Primer.

Product Board
Image Part Number Price Controlled By Number of Bridge Inputs
1046_0 $90.00 USB 4
DAQ1500_0 $30.00 VINT 2

Check out our strain gauges:

Product Sensor Properties Electrical Properties
Image Part Number Price Sensor Type Strain Gauge Mount Type Resistance Value
3142_0 $12.50 Torque Half-bridge Strain Gauge Steel (per quarter-bridge) 1 kΩ
3143_0 $12.50 Torque Half-bridge Strain Gauge Aluminum (per quarter-bridge) 1 kΩ
3144_0 $15.00 Half-bridge Strain Gauge Steel (per quarter-bridge) 1 kΩ
3145_0 $15.00 Half-bridge Strain Gauge Aluminum (per quarter-bridge) 1 kΩ
3146_0 $17.50 Full-bridge Strain Gauge Steel (per quarter-bridge) 1 kΩ
3147_0 $17.50 Full-bridge Strain Gauge Aluminum (per quarter-bridge) 1 kΩ