Self generating type transducers are ___________ transducers. nswer:

The transducers that converts the input signal into the output signal, which is a discrete function of time is known as ___________ transducer. nswer:

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

Which of the following is a digital transducer? nswer:

Strain gauge, LVDT and thermocouple are examples of nswer:

An inverse transducer is a device which converts nswer:

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

Resolution of a transducer depends on nswer:

The sensitivity factor of strain gauge is normally of the order of nswer:

In wire wound strain gauges, the change in resistance is due to nswer:

Bonded wire strain gauges are nswer:

Certain type of materials generates an electrostatic charge or voltage when mechanical force is applied across them. Such materials are called nswer:

Quartz and Rochelle salt belongs to ___________ of piezo-electric materials nswer:

Which of the following are piezo electric substances? 1. Barium titanate 2. Lead titanate 3. Lead Zirconate 4. Cadmium and sulphate nswer:

Piezo-electric transducers are nswer:

Piezo – electric transducers work when we apply _____________ to it. nswer:

Piezo electric crystal can produce an emf nswer:

The draw backs of strain gauges are 1: Low fatigue life 2: They are expensive, brittle and sensitive to temperature 3: Poor linearity nswer:

LVDT windings are wound on nswer:

The size of air cored transducers in comparison to the iron core parts is nswer:

The principle of operation of LVDT is based on the variation of nswer:

LVDT is an/a ___________ transducer nswer:

Which of the following can be measured with the help of piezo electric crystal? nswer:

S1: Transducer is a device which converts physical into electrical quantity 2: Transducer is also called as sensor.

In a LVDT, the two secondary voltages nswer:

Capacitive transducers are normally employed for___________ measurements nswer:

Match the following . EEG A. Diagnostic tool for heart alignment . ECG B. Diagnostic tool for brain alignment . Sphygmo-manometer C. Instrument used for measuring blood pressure . Stethoscope D. instrument used to hear pulse/heart beat nswer:

Pick the correct statement regarding functions of a transducer 1: Sense the magnitude, change in & / or frequency of same measurand 2: To provide electrical output that furnishes accurate, quantitative data about the measurand nswer:

The transducers which requires an external power and their output is a measure of some variation such as resistance, inductance, capacitance etc., are called as nswer:

The principle of operation of variable resistance transducer is nswer:

The application of LVDT is nswer:

Venturi is associated with nswer:

Pressure transducer for measuring blood pressure is nswer:

The change in resistance of a metal wire owing to strain is due to 1: Change in dimension of wire expressed by factor (1-2µ) 2: Change in resistance ?? nswer:

In foil strain gauge the thickness of foil varies from nswer:

Photo conductive cell consists of a thin film of nswer:

S1: In multimode fiber optics, intensity modulating schemes can be employed. 2: Schemes using polarizing techniques need birefringent fiber.

Test electrode is also known as nswer:

Most commonly used indicator electrode is nswer:

_____________ is the example of photo emissive cell nswer:

pH value of venous blood is nswer:

Silver chloride electrode is used as a reference electrode due to its nswer:

The capacitance microphone is used for the detection of nswer:

In a graded index fiber, the total reflected light takes a ___________

____________ fiber is used in interferometric instruments.

Fiber optic sensor can be used to sense _________

Photo multiplier consists of nswer:

The resistance of LDR ________________ when exposed to radiant energy. nswer:

An ideal amplifier has nswer:

Fidelity represents S1: Reproduction of signal S2: Reproduction of phase relation nswer:

Isolation amplifier actually operates on the principle of nswer:

For biomedical applications the mostly used amplifier is nswer:

Which of the following recorder gives slow response nswer:

In X-Y recorders, the self balancing potentiometers plot emf as a function of nswer: