Which is not the disadvantage of LVDT?

Which is not the disadvantage of LVDT? 

a) Relatively large displacement are required for appreciable differential output b) temperature affects the performances of transducer c) low hysteresis and electrical isolation d) the dynamic response is limited mechanically by the mass of the core and electrically by the frequency of applied voltage
by

1 Answer

Answer :

low hysteresis and electrical isolation

by

Related questions

What is residual voltage of lvdt?

Description : What is residual voltage of lvdt?

Last Answer : Need answer

LVDT used for displacement measurement is a/an __________ transducer. (A) Passive (B) Active (C) Capacitive (D) None of these

Description : LVDT used for displacement measurement is a/an __________ transducer. (A) Passive (B) Active (C) Capacitive (D) None of these

Last Answer : (A) Passive

Drawand explain LVDT accelerometer.

Description : Drawand explain LVDT accelerometer.

Last Answer : Diagram: Explanation: The LVDT accelerometer consists of one primary and two secondary windings which are placed on either side of central code. The two ends of the core ... arises in the output terminal. This output voltage is directly proportional to the vibration or acceleration.

Explain the working and principle of LVDT.

Description : Explain the working and principle of LVDT.

Last Answer : LVDT: Principle: The differential voltage of two secondary windings of a transformer is varied by positioning the iron core through an externally applied force. Working  When the pressure ... upon the position of the core which in turn depends upon the pressure fed inside the bellows.

Give one application each of following transducer: (i) LVDT (ii) RVDT (iii) Capacitive (iv) Piezoelectric

Description : Give one application each of following transducer: (i) LVDT (ii) RVDT (iii) Capacitive (iv) Piezoelectric

Last Answer : i) LVDT ➢ LVDT used to measure force ➢ LVDT used to measure strain ➢ LVDT used to measure weight ➢ LVDT used to measure tension ➢ LVDT used to measure pressure ➢ The ... flow meters, non-destructive test (NDT) equipment's ➢ Piezoelectric materials are used in ultrasonic transducers.

Sketch and describe the working principle of LVDT.

Description : Sketch and describe the working principle of LVDT.

Last Answer : Diagram Explaintion: LVDT is the example of inductive transducer, in LVDT any physical displacement of the core cause the voltage of any secondary winding to increase while simultaneously reducing the ... winding and core varies the coupling between it and two secondary windings. .:E0=E1-E2

Sketch and describe pressure measurement system for 800 mm pressure, that contain Bourdon tube and LVDT.

Description : Sketch and describe pressure measurement system for 800 mm pressure, that contain Bourdon tube and LVDT.

Last Answer : Diagram: Explanation: The pressure measurement using bourdon tube and LVDT is shown in above figure. In this the, the bourdon tube act as primary transducer and LVDT which follows ... This set up is used for measurement of pressure which is converted into electrical signal by LVDT.

Draw and describe the constructional diagram of LVDT.

Description : Draw and describe the constructional diagram of LVDT.

Last Answer : Construction of LVDT: A differential transducer consists of a primary winding and two secondary winding. The windings are arranged concentrically and next to each other. They are wound  over a ... winding and core varies the coupling between it and two secondary windings. E0=E1-E2

Draw Bourdon tube with LVDT setup for pressure measurement.

Description : Draw Bourdon tube with LVDT setup for pressure measurement.

Last Answer : Bourdon tube with LVDT setup for pressure measurement.

Explain the construction and working of LVDT accelerometer with the help of diagram.

Description : Explain the construction and working of LVDT accelerometer with the help of diagram.

Last Answer : Explanation:* The LVDT accelerometer consists of one primary and two secondary windings which are placed on either side of central code. The two ends of the core are connected with ... in the output terminal. This output voltage is directly proportional to the vibration or acceleration. 

Explain why LVDT gives a residual output at null position. State its 2 applications.

Description : Explain why LVDT gives a residual output at null position. State its 2 applications.

Last Answer : LVDT : Residual voltage may be on account of I/P supply voltage and also due to harmonics produced in the o/p voltage on account of use of iron core.  OR  An incomplete magnetic ... pressure is converted into a voltage. In these applications the high sensitivity of LVDTs is a major attraction.

Draw and explain the displacement measurement system using LVDT.

Description : Draw and explain the displacement measurement system using LVDT.

Last Answer : (Or)  LVDT has a single primary winding P and two secondary windings S1 and S2 wound on a cylindrical former. S1 and S2 have equal number of turns and are ... while simultaneously reducing the voltage in the other winding. Output voltage Vo measured is equivalent to the displacement.

State the working principle and specification of LVDT

Description : State the working principle and specification of LVDT 

Last Answer : Diagram: A Linear Variable Differential Transformer (RLVDT) is an electromechanical transducer that provides a variable alternating current (AC) output voltage that is linearly proportional to the ... a secondary transducer it can be used as device to measure force, weight and pressure

List any four drawbacks of LVDT.

Description : List any four drawbacks of LVDT.

Last Answer : Drawbacks of LVDT. 1. Large primary voltage produces distortion in output. 2. Temperature affects the performance. 3. Sensitive to stray magnetic field. 4. Large displacements are required for differential output 5. It has residual voltage

Draw construction diagram of LVDT with label. Also state the application of LVDT.

Description : Draw construction diagram of LVDT with label. Also state the application of LVDT. 

Last Answer : Application of LVDT 1) L.V.D.T as a primary transducer can be used for displacement measurement ranging from fraction of a mm to a few cm 2) Acting an secondary transducer, used to measure force, weight and pressure. 

Consider the following transducers : 1. LVDT 2. Piezoelectric 3. Thermocouple 4. Photovoltaic cell

Description : Consider the following transducers : 1. LVDT 2. Piezoelectric 3. Thermocouple 4. Photovoltaic cell  Which of the above are active transducers ?

Last Answer : Consider the following transducers : 1. LVDT 2. Piezoelectric 3. Thermocouple 4. Photovoltaic cell Which of the above are active transducers ? 2, 3 and 4

LVDT is a:.......

Description : LVDT is a:  (1) Displacement transducer (3) Acceleration transducer (2) Velocity transducer (4) Pressure transducer

Last Answer : LVDT is a: Displacement transducer.

Principle of operation of LVDT is based on the variation of...

Description : Principle of operation of LVDT is based on the variation of  A) Mutual inductance B) Self-inductance C) Capacitance D) Resistance

Last Answer : 3

Which one of the following frequency meter is suitable for measuring radio frequency?

Description : Which one of the following frequency meter is suitable for measuring radio frequency?   (a) Vibrating reed frequency meter (b) Weston frequency meter (c) Electrical resonance frequency meter (d) Heterodyne frequency meter 

Last Answer : Which one of the following frequency meter is suitable for measuring radio frequency?   (a) Vibrating reed frequency meter (b) Weston frequency meter (c) Electrical resonance frequency meter (d) Heterodyne frequency meter 

Which of the following factors limit the deflection of the pointer of a PMMC instrument of about

Description : Which of the following factors limit the deflection of the pointer of a PMMC instrument of about 90o?  1. Its damping mechanism  2. Linearity of magnetic field in which the coil moves  3. Control spring arrangement  4. ... Only 1 and 3 (b) Only 2 and 4 (c) Only 2 and 3 (d) Only 1 and 4 

Last Answer : Which of the following factors limit the deflection of the pointer of a PMMC instrument of about 90o?  1. Its damping mechanism  2. Linearity of magnetic field in which the coil moves  3. Control spring arrangement  4. ... Only 1 and 3 (b) Only 2 and 4 (c) Only 2 and 3 (d) Only 1 and 4 

Torque/weight ratio of an instrument indicates

Description : Torque/weight ratio of an instrument indicates   (a) Selectivity (b) Accuracy (c) Fidelity (d) Sensitivity

Last Answer : Torque/weight ratio of an instrument indicates Sensitivity

Wagner's earth devices are used in AC bridge circuits for

Description : Wagner's earth devices are used in AC bridge circuits for (a) Eliminating the effect of earth capacitances (b) Eliminating the effect of intercomponent capacitances (c) Eliminating the effect of stray electrostatic fields (d) Shielding the bridge elements

Last Answer : Wagner's earth devices are used in AC bridge circuits for Eliminating the effect of earth capacitances

Loading effect is principally caused by instruments

Description : Loading effect is principally caused by instruments   (a) High resistance (b) Low sensitivity (c) High sensitivity (d) High range

Last Answer : B

Thermocouple instruments can be used for a frequency range upto

Description : Thermocouple instruments can be used for a frequency range upto   (a) 100Hz (b) 5000 Hz (c) 1 MHz (d) 50 MHz and above 

Last Answer : Thermocouple instruments can be used for a frequency range upto 50 MHz and above 

In a single phase induction energy meter, in order to obtain true value of energy, the shunt

Description : In a single phase induction energy meter, in order to obtain true value of energy, the shunt magnetic flux should lag behind the applied voltage by   (a) 90o (b) 0o (c) 45o (d) 60o

Last Answer : In a single phase induction energy meter, in order to obtain true value of energy, the shunt magnetic flux should lag behind the applied voltage by 90o

Gearing, blacklash, friction between moving parts and scale accuracies are generally known as

Description : Gearing, blacklash, friction between moving parts and scale accuracies are generally known as  (a) Instrument errors (b) Interference errors (c) Calibration errors (d) Interaction errors

Last Answer : Gearing, blacklash, friction between moving parts and scale accuracies are generally known as Instrument errors

If the distance of screen from a CRT to center of deflection plates is 15 cm, the length of

Description : If the distance of screen from a CRT to center of deflection plates is 15 cm, the length of deflection plates is 2 cm, the distance between the plates is 1 cm and accelerating voltage is 500 V, deflection sensitivity is   (a) 33.2 V/cm (b) 0.03 cm/V (c) 66.4 V/cm (d) 0.015 cm/V

Last Answer : If the distance of screen from a CRT to center of deflection plates is 15 cm, the length of deflection plates is 2 cm, the distance between the plates is 1 cm and accelerating voltage is 500 V, deflection sensitivity is 0.03 cm/V

The disc of a single phase Induction-type energy meter makes 60 revolutions in 6 minutes. Meter Constant is

Description : The disc of a single phase Induction-type energy meter makes 60 revolutions in 6 minutes. Meter Constant is 1200 rev/kWh. Power consumption in the load is (A) 1.2 kW (B) 1 kW (C) 600 W (D) 500 W

Last Answer : The disc of a single phase Induction-type energy meter makes 60 revolutions in 6 minutes. Meter Constant is 1200 rev/kWh. Power consumption in the load is 500 W

The potential coil of a single phase dynamometer wattmeter has 4840 Ohm resistance. Voltage across the load is

Description : The potential coil of a single phase dynamometer wattmeter has 4840 Ohm resistance. Voltage across the load is 220 V. With the potential coil connected on the load side, the meter indicates 100 W. Approximate percentage error due to wattmeter connection is (A) 11% (B) 9% (C) 1.1% (D) 3%

Last Answer : The potential coil of a single phase dynamometer wattmeter has 4840 Ohm resistance. Voltage across the load is 220 V. With the potential coil connected on the load side, the meter indicates 100 W. Approximate percentage error due to wattmeter connection is 11%

If stator field is rotating in clockwise direction rotor rotates in

Description : If stator field is rotating in clockwise direction rotor rotates in (A) any direction (B) cannot predict (C) anticlockwise (D) clockwise 

Last Answer : If stator field is rotating in clockwise direction rotor rotates in clockwise 

What is the line current of a circuit when the current transformer of 1000 : 5 rating measures 4 amp?

Description : What is the line current of a circuit when the current transformer of 1000 : 5 rating measures 4 amp? (A) 5000 amp (B) 1000 amp (C) 400 amp (D) 800 amp 

Last Answer : What is the line current of a circuit when the current transformer of 1000 : 5 rating measures 4 amp? (A) 5000 amp (B) 1000 amp (C) 400 amp (D) 800 amp 

What is the vector location of TRAP interrupt?

Description : What is the vector location of TRAP interrupt? (A) 0000 h (B) 0008 h (C) 0014 h (D) 0024 h

Last Answer : What is the vector location of TRAP interrupt?  0024 h

An amplifier has a voltage gain of 50; this gain in dB will be

Description : An amplifier has a voltage gain of 50; this gain in dB will be (A) 34 dB (B) 68 dB (C) 41 dB (D) 14 dB 

Last Answer : An amplifier has a voltage gain of 50; this gain in dB will be 34 dB

Converter is a device for transforming

Description : Converter is a device for transforming (A) ac to dc (B) dc to dc (C) dc to ac (D) ac to ac

Last Answer : Converter is a device for transforming ac to ac

The input frequency is 50 Hz. The ripple frequency in a 12 phase full wave rectifier is

Description : The input frequency is 50 Hz. The ripple frequency in a 12 phase full wave rectifier is (A) 1200 Hz (B) 600 Hz (C) 100 Hz (D) 50 Hz 

Last Answer : The input frequency is 50 Hz. The ripple frequency in a 12 phase full wave rectifier is 1200 Hz

The grid in triodes is made in the form of

Description : The grid in triodes is made in the form of (A) mesh (B) metal strip (C) metallic cylinder (D) single filament wire 

Last Answer : The grid in triodes is made in the form of mesh

The 555 timer can be used in which of the following configurations ?

Description : The 555 timer can be used in which of the following configurations ?  a) astable, monostable b) monostable, bistable c) astable, toggled d) bistable, tristable

Last Answer : The 555 timer can be used in astable, monostable configurations.

The dc current through each diode in a bridge rectifier equals : -

Description : The dc current through each diode in a bridge rectifier equals : - a) the load current b) half the dc load current c) twice the dc load current d) one-fourth the dc load current

Last Answer : The dc current through each diode in a bridge rectifier equals : - the load current

Intrinsic semiconductor material is characterized by a valence shell of how many electrons?

Description : Intrinsic semiconductor material is characterized by a valence shell of how many electrons? a) 1 b) 2 c) 4 d) 6

Last Answer : Intrinsic semiconductor material is characterized by a valence shell of 4 electrons.

Sample -and -hold circuits in ADCs are designed to : -

Description : Sample -and -hold circuits in ADCs are designed to : - a) sample and hold the output of the binary counter during the conversion process b) stabilize theAD Cs threshold c) voltage ... d) signal during the conversion process sample and hold the ADC staircase waveform during the conversion process

Last Answer : Sample -and -hold circuits in ADCs are designed to : - voltage during the conversion process stabilize the input analog 

Base 10 refers to which number system?

Description : Base 10 refers to which number system? a) binary coded decimal b) decimal c) octal d) hexadecimal

Last Answer : Base 10 refers to decimal number system.

A basic S -R flip-flop can be constructed by cross -coupling which basic logic gates : -

Description : A basic S -R flip-flop can be constructed by cross -coupling which basic logic gates : - a) AND or OR gates b) XOR or XNOR gates c) NOR or NAND gates d) AND or NOR gates

Last Answer : A basic S -R flip-flop can be constructed by cross -coupling which basic logic gates : - NOR or NAND gates

A zero -level detector is a -

Description : A zero -level detector is a - a) comparator with a sine wave output b) comparator with a trip point referenced to zero c) peak detector d) limiter

Last Answer : A zero -level detector is a - comparator with a trip point referenced to zero

A single transistor can be used to build which of the following digital logic gates : -

Description : A single transistor can be used to build which of the following digital logic gates : - a) AND gates b) OR gates c) NOT gates d) NAND gates

Last Answer : a

The maximum phase lead is contributed by a phase lead network at: -

Description : The maximum phase lead is contributed by a phase lead network at: - a) mid corner frequency b) lower corner frequency c) upper corner frequency d) phase corner frequency

Last Answer : The maximum phase lead is contributed by a phase lead network at: -  mid corner frequency

With a 12 V supply, a silicon diode, and a 370 - ohm resistor in series, what voltage will be dropped across...

Description : With a 12 V supply, a silicon diode, and a 370 - ohm resistor in series, what voltage will be dropped across the diode? a) 0.3V b) 0.7V c) 0.9V d) 1.4V

Last Answer : 0.7V

Which of the following describes the operation of a positive edge - triggered D -type flip-flop?

Description : Which of the following describes the operation of a positive edge - triggered D -type flip-flop? a) if both inputs are HIGH, the output will toggle b) the output will follow the input on the leading ... on the leading edge of the clock and is passed to the output on the trailing edge of the clock.

Last Answer : Which of the following describes the operation of a positive edge - triggered D -type flip-flop?   the output will follow the input on the leading edge of the clock

The polarity of induced voltage while a field is collapsing is : -

Description : The polarity of induced voltage while a field is collapsing is : - a) independent of the force creating the field b) opposite to the force creating c) the field identical to the force creating d) the field present only if the force is stationary

Last Answer : The polarity of induced voltage while a field is collapsing is : - opposite to the force creating

The basic logic gate whose output is the complement of the input is the: -

Description : The basic logic gate whose output is the complement of the input is the: - a) OR gate b) AND gate c) inverter d) comparator

Last Answer : The basic logic gate whose output is the complement of the input is the: -  inverter

The output of an AND gate with three inputs, A, B and C, is HIGH when________.

Description : The output of an AND gate with three inputs, A, B and C, is HIGH when __________. a) A=1,B=1,C=0 b) A= 0,B= 0,C= 0 ' c) A=1,B=1,C=1 d) A=1,B= 0,C= 1

Last Answer : Sahara theme port n a n d Gate if two input Array Logic 0 the output is dash