The May 1955 issue of Popular Electronics detailed a build-it-yourself lie detector using a 3S4 amplifier and a Wheatstone Bridge to measure resistance between fingers on opposite hands.

A Wheatstone bridge is one of those handy circuits that has plenty of uses in both AC and DC measurements. ... Luckily, resistance temperature detectors (RTDs) are an excellent alternative.

To measure the pretty small resistance changes accurately, a strain gauge load cell employs a simple setup known as a Wheatstone Bridge. A Wheatstone bridge is simply two voltage dividers wired in ...

The Wheatstone bridge configuration is capable of measuring small resistance changes; because of its outstanding sensitivity, this circuit is the most frequently used for static strain measurements.

The resistance of a Wheatstone bridge measured between any two symmetrical terminals equals the value of one of the resistance arms. For example, four 350-? arms make a 350-? bridge.

This article was originally published with the title “ Wheatstone Bridge for Resistance Thermometry ” in SA Supplements Vol. 79 No. 2044supp (March 1915), p. 148 doi:10.1038 ...

The strain gages experience strain – the outer two gages experience compression, and the inner two experience tension (see Figure 1). Their values of electrical resistance alter when they are strained ...

Fig 4. Exposing the modified pressure sensor to laser energy created a temperature-induced change in the piezo-resistive element’s resistance that corresponded directly to laser power.

Another nugget I came across while writing this blog is the fact that Wheatstone, who is best known for the Wheatstone bridge – a device for measuring the resistance of an electrical circuit – didn’t ...