Evaluate the temperature corresponding to a thermistor, Electrical Engineering

Assignment Help:

Question:

(a) A tube from one end of a differential pressure transducer is placed at the bottom of a cylindrical cup (D= 0.8m, H= 0.1m) to measure mass flow rate.

The cup is filled with water (density= 998 kg/m3) and is draining through a small hole at the bottom of the cup. The pressure transducer has a sensitivity of 2mV/kpa and reads zero volts when the pressure difference is zero. What voltage is measured when the cup is half full?

(b) The diameter, length and resistance of a wire were measured to determine the resistivity of the material. Calculate the percent uncertainty in the resistivity based on a confidence level of 95%. Note Resistivity = (resistance* cross-sectional-area) / length.

(c) An inclined U-tube manometer filled with water(density= 998 kg/m3) is used to measure the pressure differential in a pilot-static tube placed in a wind tunnel. If the manometer is inclined at 45 degrees and the height difference along the incline is 0.062 m, what is the velocity of the air (density= 1.20kg/m3) in the wind tunnel?

(d) Which flow measuring device produces a smaller permanent pressure loss, an orifice plate or a venturi flow meter?

(e) A thermistor has a resistance of 20,000 ? at 100°C. Given the value of β = 3650°C, Ro = 20,000 Ω and R = 500 Ω. Evaluate the temperature corresponding to a thermistor resistance of 500 Ω.


Related Discussions:- Evaluate the temperature corresponding to a thermistor

Find the voltage regulation and efficiency of the line, Q. A60-Hz, three-ph...

Q. A60-Hz, three-phase transmission line has a total per-phase series impedance of 35+j140 .Ifit delivers 40 MW at 220 kV and 0.9 power factor lagging, find: (a) The voltage, c

Find the effective area of a half-wave dipole, Q. The effective area of a d...

Q. The effective area of a dipole is given by A e =0.13λ 2 . Find the effective area of a half-wave dipole at 3 GHz.

Pdc, disadvantages of shunt&series clippers

disadvantages of shunt&series clippers

A synchronous motor with a synchronous reactance , A synchronous motor with...

A synchronous motor with a synchronous reactance of 12 ohms is operating with a current of 100 A at unity power factor supplying power to a large compressor. The phasor diagram for

Bjt, bias compensation using diode and thermistor

bias compensation using diode and thermistor

Measurement and control systems, Electronic signals are used by almost all ...

Electronic signals are used by almost all measurement and control systems to transfer information. Much of this data is in the form of analogue voltages, which are prone to the ef

Calculate the value of resistor, Calculate the value of resistor: 1.  ...

Calculate the value of resistor: 1.  What are the significant differences in the way ammeters and voltmeters are connected. If an ammeter reads 2.5 A for a period of 4 minutes

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