Ruler 2 precautions to be taken when using a ruler.
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Spring control method ii gravity control method 3.
Meters double element and three element dynamometer wattmeter errors and compensations measurement of.
B avoid parallax errors.
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Class notes on electrical measurements instrumentation 2015 3 syllabus electrical measurements instrumentation 3 1 0 module i 10 hours measuring instruments.
A ensure that the object is in contact with the ruler to avoid inaccurate readings.
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Classification classified based upon the quantity they measure ammeter voltmeter classified according to the current that can be measured by them dc ac classified according to the effects used for working.
Unit 9 measuring instruments reading an analog meter is similar to reading a speedometer or fuel gauge.
Classic electrical measurements 73 3 1.
Ruler 1 a ruler is used to measure lengths from a few cm up to 1 m.
A metre rule has an accuracy of 0 1 cm i e.
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Ruler parallax errors in measurement.
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Unit 9 measuring instruments basic d arsonval meter movement with rectifier to change ac voltage to dc voltage.
This machine may be manually controlled by an operator or it may be computer controlled.
The standards of electrical quantities referred to the physical phenomena and laws 58 2 3 3.
Classified as indicating recording integrating.
Material standards of electrical quantities 63 2 3 4.
Air friction damping ii.
Unit 9 measuring instruments the voltmeter is designed to be connected directly across the source of power.
Lecture on electrical measurement measuring instruments 2.
The reference multimeters and calibrators 69 references 71 3.
Global coordinate measuring machine cmm market by manufacturers regions type and application fo a coordinate measuring machine cmm is a device for measuring the physical geometrical characteristics of an object.
