PMMC Instruments
PMMC Instruments:These instruments are used either as ammeters or voltmeters and are suitable for d.c work only. PMMC instruments … Read more
Month: December 2012
Types of instruments|Instrumet types
(1) Permanent Magnet Moving Coil (PMMC) instruments.(2) Moving iron instruments.(3) Electrodynamometer instruments.(4) Thermal instruments(5) Induction instruments.(6) Electrostatic type instruments.(7) Rectifier … Read more
Essentials of Indicating instruments
Essentials of Indicating instruments : An indicating instrument essentially consists of a moving system pivoted in jewel bearings. A pointer … Read more
Standards and their classification
Standards and their classfication: A standard is a physical representation of a unit of measurement. It is a piece … Read more
Instruments- Basics
The essential elements of an instrument are; The history of development of instruments shows three phases of instruments. a) Mechanical … Read more
The essential elements of an instrument are; A detector An intermediate transfer device An indicator, recorder or a storage device … Read more
General Principles of Measurement
General principles of Measurement : Measurement is the process by which one can convert physical parameters in to meaningful numbers. … Read more