Steve said that "An eddy-current probe works by passing an alternating
current through a coil of wire and measuring the coil’s
impedance" while we are using -24 Volt DC , So I am confused about DC and AC. Plz .

Answers were Sorted based on User's Feedback



Steve said that "An eddy-current probe works by passing an alternating current through a coil ..

Answer / dhankhandhar@ymail.com

We can never generate DC voltage ,we can only change AC to DC ,so no matter you are giving AC or DC input but Addy current will be always AC.

Is This Answer Correct ?    0 Yes 0 No

Steve said that "An eddy-current probe works by passing an alternating current through a coil ..

Answer / niraj

We are giving 24V DC to Vibration probe is having driver circuitry which will generate AC signal for eddy current

Is This Answer Correct ?    0 Yes 0 No

Post New Answer

More Instrumentation Interview Questions

how can we measure the level measurement with the help of pressure gauge?

7 Answers   Reliance,


what is the difference between dcs & plc

2 Answers  


what is instrument termination

1 Answers  


How r the calculation of process line mpm.

0 Answers   Bhushan Power Steel,


i want to make project on process control using plc.please give me idea about this.

2 Answers  






Why some transmitter shows flow in MMWC and some in TPH?

2 Answers  


What is DDC-MIS?

3 Answers  


Why boiler chimney area  oxyden sensor fixing? 

0 Answers   NTPC,


Programmable Logic control.

0 Answers   CCIE, NCVT,


I have a steam flow DP transmitter that has output swinging. Steam valve is in manual.I have good steam pressure. The impulse lines have steam tracing on them. The steam tracing has a hole in it that is blowing raw steam on the high side impulse line only. Could this be causing the swinging?

1 Answers   Honeywell,


what is the meaning if the control valve CV is 27,in terms of selecting procedure?

2 Answers  


calibration of instruments.

11 Answers   ONGC,


Categories
  • Civil Engineering Interview Questions Civil Engineering (5084)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16631)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1094)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)