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Honeywell Sensotec Frequently Asked Questions

How Does a Bonded Foil Strain Gage-based Pressure Sensor Work?


Gaged diaphragm Gaged diaphragm on a miniature pressure sensor
A bonded foil strain gage-based pressure sensor measures an applied pressure in one of two ways. In some models, such as miniature pressure sensors, foil strain gages are bonded to a diaphragm.

Gaged element Gaged element and mechanical transmitter

But in other models, foil strain gages are bonded to an element that is mechanically connected to a diaphragm, such as by a bolt the strain gages are strained as applied pressure is transmitted from the diaphragm to the gaged element.

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