Understanding Motor Controls
4th Edition
ISBN: 9781337798686
Author: Stephen L. Herman
Publisher: Delmar Cengage Learning
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Textbook Question
Chapter 19, Problem 5RQ
What type of electric circuit is used to increase the sensitivity of a metal detecting proximity detector?
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G = 0.350MPa, P = 900N, a=20mm, b=50mm, c=80mm
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1.5 kN/m
4 m
2 m
C
14.10. A liquor containing 15 per cent
solids is concentrated to 55 per cent
solids in a double-effect evaporator.
operating at a pressure in the second
effect of 18 kN/m². No crystals are
formed. The flowrate of feed is 2.5 kg/
s at 375 K with a specific heat capacity
of 3.75 kJ/kg K. The boiling-point rise of
the concentrated liquor is 6 deg K and the
steam fed to the first effect is at 240 kN/
m². The overall heat transfer coefficients
in the first and second effects are 1.8 and
0.63 kW/m²K. respectively. If the heat
transfer area is to be the same in each
effect, what areas should be specified?
D
A
Chapter 19 Solutions
Understanding Motor Controls
Ch. 19 - What is the function of a proximity detector?
Ch. 19 - What is the basic principle of operation used with...Ch. 19 - What is an oscillator?Ch. 19 - What is the basic operating principle of operation...Ch. 19 - What type of electric circuit is used to increase...Ch. 19 - Name two types of proximity detectors used to...Ch. 19 - What is the maximum range at which most capacitive...Ch. 19 - How is it possible for an ultrasonic proximity...
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