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Measurements

GSR Sensor Circuit for Biofeedback Measurements

Last Updated on September 5, 2023 by Swagatam 3 Comments

GSR meter circuit

In this post I have explained how to build a very simple GSR sensor circuit using just a couple of transistors and a few other passive components. A GSR (Galvanic Skin Resistance) sensor, also known as a skin conductance or electrodermal activity sensor, measures the electrical conductance of the skin, which changes in response to […]

Filed Under: Health related Projects Tagged With: Biofeedback, GSR, Measurements, Sensor

Basics of Strain Gauge Measurements

Last Updated on August 6, 2018 by Swagatam 2 Comments

wheatstone bridge circuit

The strain gauge is one of the most useful tools for precisely measuring expansion or contraction of a material as forces are applied. Strain gauges are also useful for measuring applied forces indirectly if they are aligned approximately linearly with the deformation of the material. What are Strain Gauges Strain gauges are sensors whose electrical […]

Filed Under: Electronics Theory Tagged With: Basics, Gauge, Measurements, Strain

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