A potentiometer is a device where a resistive wire is wound on an insulating core provided with a sliding contact. It can be excited with a DC or AC voltage source. The slider movement can be translational (straight) rotational or a combination of both. Schematic diagram of a resistive potentiometer is shown in figure. Here, …
Potentiometer and Loading effect on potientiometer Read More »
Resistance transducer is one of the simplest and important groups of transducers. These are transducers whose electrical resistance is varied in accordance with the input quantity (measurand). Quantities like displacement, acceleration, force, pressure, temperature etc. can be transduced using this type of transducers. Basic Principle of Resistance Transducer The basic principle of a resistance transducer …
Resistance Transducers: Basic Principle, Advantages, Disadvantages and Examples Read More »
The basic requirements of a sensor are Accuracy: It is the level of exactness between the measured value and the true value. Hysteresis: It is the difference in the output of the sensor for a given input x when x reaches this value in upscale direction and downscale direction. Linearity: It is specified in terms …
General characteristics of sensors are two, namely Static characteristics Dynamic Characteristics Static Characteristics of Sensors Static characteristics of sensors describe the performance of a transducer with very slow changes in the measurand. Static characteristics include accuracy, linearity, precision, sensitivity…etc Error Accuracy of a sensor is usually specified by error. it tells you how closely the …
Several criteria are adopted for the classification of sensors. Some of these include Based on the principle of operation (transduction principle) Based on energy requirements Based on material and technology used Application-based classification Property-based classification Based on transduction principles The transduction principle is the basic criteria that should be followed for a systematic approach to …
