The unit of measure is ampere a.
Electrical measuring tools and instruments ppt.
Ammeter an instrument used to measure the amount of electrical current intensity in a circuit.
Unit 9 measuring instruments basic d arsonval meter movement with rectifier to change ac voltage to dc voltage.
Its design allows for a measure of great length.
Measures current without physical connection curve tracer.
Unit 9 measuring instruments the voltmeter is designed to be connected directly across the source of power.
Electrical and electronics instruments n krishna prakash.
Pull push rule a measuring tool used to measure the length of an object in centimeter and inches.
Name purpose ammeter ampermeter measures current capacitance meter.
Three common symbols for ammeters 3 724 1 02 02 fig.
Electrical measuring instruments 1 electrical measuring instruments chapter 2 ammeters voltmeters and wattmeters electrical systems series 724 1 powerpoint masters 720724 1 02pp 2 724 1 02 01 fig.
It is used by blacksmith and carpenters.
Electrical measuring instruments electrical measuring instruments chapter 1.
Multirange milliammeter 5 724.
Essential requirement of indicating instruments 1.
Eddy current damping 2.
However common usage calls both instruments rulers and the special name straight edge is used for an unmarked rule.
It consists of a ribbon of cloth plastic fiber or glass.
Lecture on electrical measurement measuring instruments 2.
Electrical instruments ppt 1.
Unit 9 measuring instruments reading an analog meter is similar to reading a speedometer or fuel gauge.
Powerpoint ppt presentation free to view.
Before starting any electrical or electronics device installations or studying electrical practical we should know about the measurements and its measuring instruments.
The first article based on the electrical measurement instrumentation emi.
Measuring tapes are used to measure length in metres and centimetres.
Types applications introduction testing is an essential activity in the power utility industry.
Whatever your role in the industry electrical designer purchase engineer manufacturer installation contractor technician or maintenance engineer a solid knowledge of electrical tests to be carried out on a given piece of hv and mv electrical.
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.
Spring control method ii gravity control method 3.
Air friction damping ii.
Below is the list of measuring instruments used in electrical and electronic work.
Principles of meter operations electrical systems series 724 1 powerpoint masters 720724 1 01pp 724 1 01 01 fig.
Damping torque or restoring torque i.
Classified as indicating recording integrating.
Measures the capacitance of a component current clamp.
It is a common measuring tool.
