What is the basic principle of vibration measurement by
BENTLY NEVADA vibration measurement system? and Why it
gives the -ve voltage output?
- 14 Answers
- 130689 Views
- Ensol, GNFC, Reliance, Siemens, I also Faced
- E-Mail Answers
Answer Posted / atta
An eddy-current probe works by passing an alternating
current through a coil of wire and measuring the coil’s
impedance(Resistance to flow of AC current). The coil is
supplied with a alternating current from the remote
eddy probe driver, which sets up an electro-magnetic field
between the tip and the observed surface.
When any electrically conductive material within this
electromagnetic field, ie. the target material, will have
eddy currents induced in it’s surface. These eddy currents
will vary produce there own magnetic field but in opposite
direction of probe field, and hence the impedance to
energising current, in proportion th the probe target
distance.
The sensing electronics in turn convert this impedance
change to a voltage, providing an electrical output
directly proportional to physical gap.
| Is This Answer Correct ? | 37 Yes | 4 No |
Post New Answer View All Answers
hey any one got the papers of SAIL and HPCL plz do help me by posting them to my mail ID's naren07_87@yaho.co.in, surenarendra@gmail.com
Q- What are the application in which PNP transistor is preferred over NPN ?
What are the types of control valves available
Name different parts of a pressure gauge. Explain the use of hair spring in the pressure gauge.
Which Signal hart communicator work? If there any signal change when hart connect while transmitter in line ?
How is flow measured in square root?
Q- Control problem are mainly classified in _____ types. a-)4 b-)3 c-)6 d-)nono of these Few of them i know is 1- regulator type problem (eg- Air conditioner) 2- tracking problem (eg missile trcking problem) 3- sybernatics 4- optimal control problem
in which principle pressure tx,level tx ,flow tx,temp tx ,control valve works?
What is 3 selection available when configure the burnout protection for controller
is motorized valve closed when power shutoff?
What is the calibration procedure of Drum level transmitter if range is 0 to -400 mmh2o in lab?
is there any digitel grevity meter availaible in the market by which we can measure specific gravity of a battery?
Meaning of the following a. IOP- Manimum; b. IOP- Maximu,;
How can i copy program (parameter) from mm440 (V.F.D.) by using BOP?
䑰ҕ䔈ҕ䖠ҕ䘰ҕ䛀ҕ䝐ҕ䟐ҕ䢐ҕ䥐ҕŹ
