CODES

We use a weight scale to measure weight but have you wondered how it works?  This article will explain and help you create your own weight-measuring device.  Lets learning begin. Strain Gauge The resistance strain gauge is a resistive element that changes in length hence resistance, as the force is applied to the base on which it is mounted causing stretching or compression. Strain gage is low-impedance devices; they require significant excitation power to obtain reasonable levels of output voltages. A strain gauge can be used to measure the force, where four strain gauges are used, two on the top side, and two on the bottom side. The gages are connected in an all-element bridge configuration, which gives maximum sensitivity and is inherently linear. When the pressure is applied to the plate, two gauge elements of the bridge are subjected to tension; the other two elements are subjected to compression. The corresponding changes in resistance are a measure of the incident pre...