Answer / rajesh

dc motor works on principle of electromagnetic field creation
and torque production due to magnetic componentn(rotor )
placed along it in oriented direction and it is reversible

drives is a ckt to control speed of motor (using scr)
e.g dc drive for dc motor

How does a strain gauge measure pressure?

2 Answers  

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HOW TO DO PERFECT CALIBRATION OF DIFFERENTIAL PRESSURE TRANSMITTER FOR CLOSE VESSEL TANK LEVEL PURPOSE ???? AND HOW TO MAKE ZERO PRESSURE ?? Rosemount 2051 Pressure Transmitter with HART® Revision 5 and 7 Selectable Protocol BIENG USED !! HOW TO CALIBRATE FIELD SIDE DPT WITH THE HELP OF SPAN & ZERO PUSH BUTTONS ??

1 Answers   Bhel,

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what is mapping in instrumentation and control engineering

2 Answers  

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please tell me how maintainence person shifted to good epc company/design company

0 Answers  

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Dear All can any one told me that VFD Make ABB Model ACS800-01 used for dual Source like 1.DC Source applied at terminal UDC+,UDC- 2. 3 phase 400AC,50Hz

1 Answers  

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if a dp transmitter has range 100 in H2O and flow is 20mmcf and if the flow is changed to 25 mmcf then what is the formula to determine new range of transmitter

1 Answers   TATA,

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what is the primary sensing element in flow or pressureand level transmitter?

5 Answers   Power Grid,

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for indiacation of turbine(china) bearing temperature what type of sensor will be used(i.e. rtd or thermocouple or themister ) ? why it is ? i need clear explanation ?

2 Answers  

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Draw a simple circuit for a well head control panel used to protect the well against fire, leak, blockage, ESD, & controls the operation of one downhole & one surface safety valve. Explain the operation and controls

0 Answers  

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what is the full formof HART

7 Answers  

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What is the purpose of MATLAB?

3 Answers  

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If a transmitter is installed 10 m below its tapping point how much pressure exerted if fluid is water?

10 Answers   QAFCO,

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