Interested to Buy Any Domain ? << Click Here >> for more details...
What is the basic principle of vibration measurement by
BENTLY NEVADA vibration measurement system? and Why it
gives the -ve voltage output?
- 14 Answers
- 134425 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
How to calibrate an pressure gauge with yantrika test bench?
what is difference between fork type and capacitance type level switch. where it is using
principle of dead weight tester ?
what is the input of digital counter during the the calibration time?
what are the selections available in configuring a burnout protection of a controller? thanks
Full form of KKS when use DCS.
In bently nevada vibration monitoring system,what is the reason to maintain the Resistance of the probe + extension cable equal to 95 ohm? If possible explain the basic principle of measurement with detail electronic circuits.
flow transmeter accuracy 0.075% of full scale & find ucertainty is 0.025 % so what is maximum limit band of uncertainty
Why the ammonia and Nitric Acid level indicators is with millimeter ? and What is the conversion form millimeters that level indicator indicate to weight ?
in which principle pressure tx,level tx ,flow tx,temp tx ,control valve works?
In control valve proximity inductive sensor is taken as digital feedback for full open and full close.Normally its volts 24v when the sensor acts the feed back voltage 14v so that our relay not indicating in plc panel . kindly give the solution.
Why use ball valves on Gas pipelines instead of gate & or globe valves...means basic diffrence or use of these valves..how designers knows this type of valve with rating is required...
How does temperature bath work? How does coil gets heated only by applying some current?
what is effect of specific gravity in differential level transmitter , explain formula related with this .
How is flow measured in square root?
