Various Types of Transducers for Weighing
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A balance i.e. a mass comparator essentially compares the gravitational forces exerted by two bodies. If the value of mass of one body is known, then value of the mass of the other body can be determined. Hence, any transducer, which can react to a gravitational force, can be used as a heart of a balance or a weighing instrument. Every transducer on whatever physical principle is based normally transforms the gravitation force into a proportional electrical signal, which on further processing indicates the mass of the body. Such a transducer normally requires more frequent calibration against the standard weight of known mass. The following transducers are being considered in this chapter.
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