UN. 3 Measurement of Acceleration, Velocity and Displacement

Which element is mostly used in the capacitive accelerometers for sensing?

• Germanium

• Silicon

• Lead

• Carbon

MEMS stands for _______

• Micro electric mechanical system

• Micro electro mechanical system

• Mini electro mechanical system

• Mini electronic mechanical system

Acceleration is a ______ quantity.

• scalar

• vector

• tensor

• resistive

Piezoelectric accelerometers converts ________ energy to ______energy.

• mechanical, sound

• mechanical, electrical

• sound, electrical

• sound, electrical

Self generating type transducers are _____ transducers.

• Active

• Passive

• Secondary

• Inverse

A transducer that converts measurand into the form of pulse is called

• Active transducer

• Analog transducer

• Digital transducer

• Pulse transducer

Which of the following is a digital transducer?

• Strain gauge

• Encoder

• Thermistor

• LVDT

Strain gauge, LVDT and thermocouple are examples of

• Active transducers

• Passive transducers

• Analog transducers

• Primary transducers

A strain gauge is a passive transducer and is employed for converting

• Mechanical displacement into a change of resistance

• Pressure into a change of resistance

• Force into a displacement

• Pressure into displacement

Resolution of a transducer depends on

• Material of wire

• Length of wire

• Diameter of wire

• Excitation voltage