Measurements And Instrumentation Full Hand Written Lecture Notes from Reputed Institutions and Faculties. Useful for Electrical Engineers , Specially for Candidates Appearing for GATE Exams.
- Application in thermal power plant
- Order of meters
- Indication and meters
- Torque in indication and meters
- 1. Damping torque
- 2. Deflecting torque
- 3. Controlling torque
- Linear instruments
- Non-linear instruments
- Electromagnetic meters
- PMMC
- Features
- Enhancements of meters
- Muiti ammeters
- Effect
- DC voltmeters
- Loading effect
- Voltmeters of different ratings
- Application
- Thermal instruments
- Thermocouple meters
- Seeback effect
- Advantages
- Disadvantages
- Hot wire meters
- Repulsive M-I
- Deflecting Torque
- Condition for non-linearity
- Electrodynamo meter
- Wattmeter
- Blondel’s theorem
- Error in wattmeter
- LPF Wattmeter
- Energy meter
- 1.Driving mechanism
- 2.Rotating mechanism
- 3.Breaking mechanism
- 4.Recording mechanism
- Power factor meter
- Megger
- Potentiometer / Null detector
- Current transformer
- Potential transformer
- AC bridges
- 1.Maxwell L-C Bridges
- 2.Hay’s Bridges
- 3.Anderson Bridges
- 4.Owens Bridges
- Wagner Earth Connection
- Digital Meter
- Specification of DVM (digital voltmeter)
- 1.Dual slop DVM
- 2.Continuous ramp DVM
- 3.Stair case ramp DVM
- 4.Successive approximation resistor (SAR )
- 5.Potentiometer / balanced beam DVM
- 6.Integrated / Voltage – Frequency converter
- Measurement of resistance
- 1.Wheat stone bridge
- 2.Cracy foster slide wire bridge
- 3.Substitution method
- 4.Ohm meter Method
- 5.V-I method
- High R method
- Quality factor ( Q-meter ) meter
- CRO ( cathode ray method )
- Special CRO
- Calibration of CRO
- Band width of CRO
- Input impendence of CRO
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