A device for indicating the strain of a material or structure at the point of attachment.
- All of these work using a device called a strain gauge that is sensitive to very small changes in weight.
- Inside the torque sensor is a strain gauge with an output wire attached.
- ‘The strain gauge sensors are sacrificed for each placement,’ he adds, ‘but you can also use ‘surface pressure cells’ which are permanently mounted on the forms and can be reused.’
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