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

Determine the two possible ssb am signals, Let the modulating signal m(t) b...

Let the modulating signal m(t) be a sinusoid of the form m(t) = cos 2πf m t, f m c , and let the carrier signal be cos(2πf c t + φc). (a) Determine the conventional AM signal,

Explain the different types of multivibrators, Explain the different types ...

Explain the different types of multivibrators ? Multivibrator is basically  a two-stage amplifier with output of one supplied back to the input of the other . Multivibr

Automatic frequency control , Discuss the requirement for automatic gain co...

Discuss the requirement for automatic gain control in AM receiver and automatic frequency control in FM. How are these 'control' voltage formed and used?

Current-carrying conductors, Q. Current-carrying conductors? Current-ca...

Q. Current-carrying conductors? Current-carrying conductors, when placed in magnetic fields, experience mechanical force. Considering only the effect of the magnetic field, the

Compute the fourier transform, Compute the Fourier Transform of the followi...

Compute the Fourier Transform of the following function: f(x) = exp( - x 2 /(2σ 2 )) cos (2πx/k) where σ and k are constants. What is the minimum sampling rate required

Discuss important properties and uses of ceramics, Discuss important proper...

Discuss important properties and uses of Ceramics. Ceramics - These are materials made by high temperature firing treatment of natural clay and specific inorganic matters. The

Microelectronic technologies and applications, The assignment comprises two...

The assignment comprises two parts, a CPLD Design Exercise and a CPLD Design Project. The CPLD Design Exercise will enable you to acquire competance in programmable logic design

project, I want to make project plz help me n gove me idea about actually ...

I want to make project plz help me n gove me idea about actually its my first year in electrical engineering thts why Ineed help hpfully you will reply soon

Semiconductors, Charge density I n a semiconductor

Charge density I n a semiconductor

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