Tutorial Test: Transducer and sensor

Define Transducer?

• A device which converts energy or information from one form to another

• A device that sense physical quantites

Which of the following disadvantages of mechanical transducer?

• The production of mechanical transducer signals is based upon electrical effects which may be resistive, inductive, capacitive in nature

• poor frequency response, requirement of large forces to overcome mechanical friction

• required external power supplies tp operate

Which of the following is the basic requirement of a transducer?

• Active and Passive

  Primary and Secondary

  Analog and Digital

  Direct and Inverse

• Range

  Sensitivity

  Electrical output Characteristics

•   Linearity

    Repeatability

    High Output Signal Quality

Which of the following describes well about inverse transducer?

• Provide electrical quantity as output

• Provide physical quantity as output

• Provide output signal as a function of time

• Provide output as a discrete signal

LVDT is an example of ______

• secondary transducer

• primary transducer

• inverse transducer

• digital transducer

Describe "range" in selection of transducer

• transducer output signal should be compatible with the recording device and the rest of the measuring system equipment

• The transducer selected should be able to withstand the environmental conditions to which it is likely to be subjected while carrying out measurements and tests

• the transducer should be large enough to encompass all the expected magnitudes of the measurand

Which of the following describes well active transducer?

• Self-generating type transducers, the transducers develop their output the form of electrical voltage or current without any auxiliary source

• These transducers require external power source for energy conversion

• converts an electrical quantity into a non-electrical quantity

Describes repeatability as basic requirment of a transducer.

• It should be capable of withstanding overload and some safety arrangement should be provided for overload protection.

• Its input-output characteristics should be linear and it should produce these characteristics in symmetrical way.

• It should reproduce same output signal when the same input signal is applied again and again under fixed environmental conditions.

Which of the following classify transducers under the basis of source of energy conversion?

• Analog and Digital Transducers

• Primary and Secondary Transducers

• Active and Passive Transducers

Which of the following classify transducers under the basis of nature output signal?

• Analog and Digital Transducers

• Transducer and Inverse Transducers

• Primary and Secondary Transducers

• Active and Passive Transducers