CPE 10 Fundamentals of Mixed Signals and Sensors BSCPE III Quiz

A sensor is a device that converts energy in one form to another.

The majority of transducers convert electrical energy to mechanical displacement.

Passive transducers require an external power output.

Self generating transducers produce digital voltage or current when stimulated by some physical form of energy.

Transducers can be classified based on the physical quantity, property, or condition that is measured.

Sensors and transducers are the same thing.

Thermocouples produce a small electric current proportional to the difference in ________________.

The relationship between the electric current produced by a thermocouple and the temperature difference is nearly ________________.

The effective EMF of the thermocouple is given by the equation: E = c (T1 – T2) + k(T1² – T2²), where E represents EMF, T1 is the temp of the hot junction, and T2 is the temp of the cold or reference junction. The constants c and k depend on the ________________.

A resistance type sensor works on the principle that the electrical resistance of a conductor changes with ________________.

The resistance of a conductor gets ________________ as it gets hotter.

Thermocouples have a wide range of temperature from as low as ________________ up to as high as 2700°C.

The metals used in a copper-constantan thermocouple are ________________ and ________________.

The resistivity of a conductor changes with ________________.

The resistance wire in a basic temperature sensor represents the ________________.

A thermocouple is unaffected by ________________.