Briefly explain the principle and operation of strain gauges, Electrical Engineering

Assignment Help:

Question:

(a) With the help of a clearly labeled diagram explain the functioning of a basic thermocouple.

(b) Briefly explain the principle and operation of strain gauges. What is meant by gage factor "k" and give the equation to calculate the gage factor.

(c) Two strain gauges are mounted so that they sense axial strain on a steel member in uniaxial tension. The 120 Ω gauges form two legs of a Wheatstone bridge and are mounted on opposite arms. The gauge factor for each gauge is 2, the bridge constant is 2, and Em for steel is 200 MPa. For a bridge excitation voltage (Ei) of 4 V and a bridge output voltage (Eo) of 120 μV under load, estimate

          a) the maximum strain in the member, and

          b) the resistance change experienced by each gauge.

(d) Draw the block diagram of a simple frequency counter and explain how it operates


Related Discussions:- Briefly explain the principle and operation of strain gauges

Find the truth table and the type of gate, Q. The DeMorgan's theorems sugge...

Q. The DeMorgan's theorems suggest that the basic logic operations can be realized by use of inverters and NAND gates only. For the circuits shown in Figure,  find the truth table,

What is balanced discriminator, Q. What is balanced discriminator? A ba...

Q. What is balanced discriminator? A balanced discriminator with the corresponding frequency characteristics is depicted in Figure. The rising half of the frequency characteris

Discuss the control words of ic8259, Discuss the control words (ICWS) of IC...

Discuss the control words (ICWS) of IC8259. The Intel 8259 is a single chip programmable interrupt controller. It is compatible with 8086, 8088 and 8085 microprocessor. It is a

Radiation intensity pattern of antennas, Q. Radiation intensity pattern of ...

Q. Radiation intensity pattern of Antennas? Antennas do not radiate power equally in all directions in space. The radiation intensity pattern describes the power intensity (whi

Difference equation of transfer function, Now you have to digitally impleme...

Now you have to digitally implement this circuit. Compute a difference equation which if you implement will behave exactly like this circuit.

Advanced mobile phone system, Q. Advanced Mobile Phone System? Cellular...

Q. Advanced Mobile Phone System? Cellular systems employed cells with a radius in the range of 5-18 km. The base station usually transmitted at a power level of 35 W or less, a

Explain the phenomenon of breakdown in dielectric materials, Explain the ph...

Explain the phenomenon of breakdown in dielectric materials. Breakdown in dielectric materials: This electric strength at breakdown is explained as the minimum electric stress

What do you mean by output voltage swing, Q. What do you mean by Output Vol...

Q. What do you mean by Output Voltage Swing? Ideally this is equal to the difference between the two supply rail voltages, although in practice it is a few volts less.

Event triggering, what is event triggering related to digital storage oscil...

what is event triggering related to digital storage oscilloscope?

Determine the stator current and power factor, A ¼-hp, 230-V, 60-Hz, four-p...

A ¼-hp, 230-V, 60-Hz, four-pole, single-phase inductionmotor has the following parameters and losses: R 1 = 10 , X l1 = X l2 = 12.5 ,R 2 = 11.5 , and X m = 250 . The core

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd