The correct answer is: An inverse transducer is a device which converts a non-electrical quantity into an electrical quantity.
An inverse transducer is a device that converts a non-electrical quantity into an electrical quantity. This is the opposite of a transducer, which converts an electrical quantity into a non-electrical quantity.
Some examples of inverse transducers include microphones, which convert sound waves into electrical signals, and photodiodes, which convert light into electrical signals.
A microphone is a device that converts sound waves into electrical signals. The sound waves cause a diaphragm to vibrate, which in turn causes a coil of wire to move in a magnetic field. This movement of the coil generates an electrical signal.
A photodiode is a device that converts light into electrical signals. When light hits a photodiode, it causes electrons to be released from the semiconductor material. These electrons are then collected by an electrode, which generates an electrical signal.
Other examples of inverse transducers include thermocouples, which convert heat into electrical signals, and strain gauges, which convert mechanical strain into electrical signals.
A thermocouple is a device that converts heat into electrical signals. When two different metals are joined together, a voltage is generated when there is a difference in temperature between the two metals. This voltage is proportional to the difference in temperature.
A strain gauge is a device that converts mechanical strain into electrical signals. When a strain gauge is placed on a material, the material’s deformation causes the strain gauge to change its resistance. This change in resistance can be measured and used to calculate the amount of strain that the material is experiencing.