Telemetry Principles Zankhana Mehta.

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Presentation transcript:

Telemetry Principles Zankhana Mehta

block diagram of telemetry system

Types of Telemetry System According to Energy Medium Pneumatic, Hydraulic According to Electrical Current, Voltage Pulse According to Signal Type Analog, Digital

Pneumatic Telemetry

Advantages High effectiveness High durability and reliability Simple design High adaptability to harsh environment Safety Easy selection of speed and pressure Environmental friendly

Disadvantages Relatively low accuracy Low loading Processing required before use Uneven moving speed Noise

Hydraulic Telemetry

Advantages It gives more power than pneumatic systems. Its reliable to operate.

Disadvantages Slower motion than pneumatic. Complex construction. Leakage of oil problem More maintenance than pneumatics

Current telemetry

Current telemetry

Voltage Telemetry

Pulse Telemetry

Pulse Modulation

According to Signal Type Analog Telemetry System: If the information in the form of current, voltage, Possion, frequency than the system is called analog system

According to Signal Type.. Digital Telemetry System: If the information is transmited in the form of pulses than the system is called Digital telemetry system

Compare the merits and demerits of Hydraulic, Pneumatic and Electric Telemetry

Compare the merits and demerits of Hydraulic, Pneumatic and Electric Telemetry…..

Standard output ranges of all types of telemetry systems Current : 4-20 mA Voltage : 0-24 V Pressure : 3-15 psi

Thank You!!!!