Hi friends, In this article, I am going to describe you strain gauge working principle, gauge factor and strain gauge load cell working. A strain gauge is a passive transducer, that converts mechanical displacement into the change of resistance. A strain gauge sensor is a thin wafer-like device that can be attached to a variety of materials […]
Hi friends, In this article, I am going to discuss the thermocouple working principle, its types and properties. Thermocouples are the temperature sensors which are extensively used for the measurement of the temperature variations. They sense the temperature and the temperature is further measured by other instruments after sensing it. As they convert a non-electrical quantity (temperature) into
In this article, I am going to discuss the NTC thermistor working principle, its characteristics, and its applications. So let us start. A thermistor is a special type of resistor whose resistance changes with the change in its body temperature. These are of two types: PTC Thermistor: Positive Temperature Coefficient (PTC) thermistor, is made up
The errors in transducers occur because they do not follow, the input-output relationship given by qo = f(qi) The error can be expressed in terms of either input or the output quantity. Four types of errors which occur usually are as under: Errors in Transducers 1. Scale Error The scale error comprises of four different types
There are many ways to measurement of a physical quantity. While the selection of transducers, and how to select a transducer for a particular application, the following points should be kept in the mind. Unfortunately, most transducers are not sensitive to just one quantity. If measurements are to be made under conditions where there is a likelihood of two or
Hi friends, In this article, I am going to discuss the capacitive proximity sensor working and inductive proximity sensor working and my article will increase your knowledge on this topic. A capacitive proximity sensor senses the presence of an object (usually called the target) without physical contact. They can detect both metallic and nonmetallic targets.