Question

Advanced Instrument Analysis Chemistry

1. Give 4 examples of transducers used in chemical analysis tat require an op amp (e.g. outputs a current that must be amplified).

Answer 1

A transducer is an electronic device that converts energy from one form to another form. Common examples include microphones, loudspeakers,thermometers, potsition and pressure sensors.Although not generally thought of transducers, photocells, LEDs and even common light dulb are tansducers.Transducer effciency is define as the ratio of the power output in the desire form to the total power input.

E = Q/P

:

E = Q/P

INo transducer is 100 percent efficient, some power is always lost in the conversion process. Usully this loss is manifested in the form of heat.