Interested to Buy Any Domain ? << Click Here >> for more details...
What is principle of ultrasonic level transmitter?
- 3 Answers
- 10457 Views
- I also Faced
- E-Mail Answers
Answer Posted / hassanelect
The ideal mounting point for the sensor is directly
underneath the silo roof.
The ultrasonic emitter in the sensor is excited electrically
and sends an ultrasonic pulse in the direction of the
surface of the product. The surface partially reflects the
pulse. This echo is detected by the same sensor, now acting
as a directional microphone, and converted back into an
electrical signal.
The time between transmission and reception of the pulse -
the sonic run time - is directly proportional to the
distance between the sensor and the product surface.
The distance D is determined from the velocity of sound c
and the run time t by the formula:
D=C.t/2
| Is This Answer Correct ? | 17 Yes | 3 No |
Post New Answer View All Answers
the output of the common trasmitter protocol in qatar gas are the following
centrifugal compressor interlock? Tell me the parameter at which compressor will trip
How to Calibrate Coriolis Flow transmitter in field
Why thermo wells are used? What materials are used in thermo wells?
what happen if i increase height of displacer type LT.accuracy or sensitivity are affected.why?
Why 4-20 amps is being used in instruments? Why cant we use any other range instead of 4-20 amps? Why only 4 amps is taken as lower limit and why 20 amps is taken as the higher limit?
what is the input to be given in digital flow meter during the the calibration time?
Hi Friends i need Electronics&Instrumentation Engg question papers for BARC written test by coming 20th May 2008 pls post ur use full info to kkumarei@gmail.com. Or for suggestions pls give one missed call to 9962122264
What are the type of bonnets in the control valves?
why we should maintain neutral earth voltage below 1V while calibration? why cant it be 1.2V or 2V
Regarding , there is an air cooler which control the fans(50% of AV FANS) by temperature in outlet , and the louver of Air cooler is controlled by HIC from control system , So if on Air cooler we will consider 2 individual I/P converter or positioner?
What is the use of double seated valve?
what is the PC interface and software for connection to ABB logic module “ LM011-CE18RAC “ ( for Programming ) ??
Why all the drains(Gland sealing,ESV,Casing inlet etc) are directly connected to the flash tank instead of hotwell of the condensor in the power plant? My Email Id:naba02222@gmail.com
why would you like to join our company
