Damping torque or restoring torque i.
Electrical measuring instruments ppt free download.
Ruler 1 a ruler is used to measure lengths from a few cm up to 1 m.
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.
The standards of electrical quantities referred to the physical phenomena and laws 58 2 3 3.
B avoid parallax errors.
Unit 9 measuring instruments basic d arsonval meter movement with rectifier to change ac voltage to dc voltage.
Electrical instruments ppt 1.
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Classified as indicating recording integrating.
Unit 9 measuring instruments reading an analog meter is similar to reading a speedometer or fuel gauge.
Here you can download the free lecture notes of electrical measurements pdf notes em pdf notes materials with multiple file links.
Lecture on electrical measurement measuring instruments 2.
Principles of meter operations electrical systems series 724 1 powerpoint masters 720724 1 01pp 724 1 01 01 fig.
Ruler parallax errors in measurement.
Classification absolute and secondary instruments indicating instruments.
Material standards of electrical quantities 63 2 3 4.
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.
Unit 9 measuring instruments the voltmeter is designed to be connected directly across the source of power.
Meters double element and three element dynamometer wattmeter errors and compensations measurement of.
The electrical measurements notes pdf em notes pdf book starts with the topics covering control and damping torques design considerations type of p f.
The reference multimeters and calibrators 69 references 71 3.
A metre rule has an accuracy of 0 1 cm i e.
Classic electrical measurements 73 3 1.
Eddy current damping 2.
Principles of meter operations electrical systems series 724 1 powerpoint masters 720724 1 01pp 724 1 01 01 fig.
Spring control method ii gravity control method 3.
Ruler 2 precautions to be taken when using a ruler.
A ensure that the object is in contact with the ruler to avoid inaccurate readings.
Indicating measuring instruments 73 3 1 1 electromechanical instruments versus digital.
Essential requirement of indicating instruments 1.
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This machine may be manually controlled by an operator or it may be computer controlled.
Air friction damping ii.
Electrical measuring instruments electrical measuring instruments chapter 1.
