What is principle of ultrasonic level transmitter?
Answer Posted / visakh ctjv
In ultrasonic level transmitter, a ultrasonic source is
used to produce ultrasonic pulses . these pulses are
transmitted through the vessel,the echo returning back
from the vessel is then recieved by a detector , depending
upon the level in the vessel the frequency of the recieved
signal varries ,the difference between the transmitted
pulse frequency and the recieved signal frequency is used
to measure the level.
| Is This Answer Correct ? | 26 Yes | 4 No |
Post New Answer View All Answers
What is difference between ESD and PLC please Explain me clearly.
Capacitance, resistance ( colour coding ), parallel & series circuits.
What is the diffrence between digital signal processing and discrete signal processing?
In which principles tx ,pressure gauge,Temp gauge,control valve works?
DEAR SIR/MADAM MY NAME IS ARKAPROVA BHATTACHARYYA.I AM A FRESHER INSTRUMENTATION ENGINEER.CAN YOU PLEASE SEND SOME QUESTION PAPERS OF GRADUATE ENGINEER TRAINEE EXAM OF DVC(DAMODAR VALLY CORPORATION).MY EMAIL IDs ARE arka_aec@rediffmail.com.
I am having a Phoenix digital to modbus converter. The o/p of the same is connected to flow computer FB407. But the digital signals are updated only after one minute in the flow computer. what may be the cause of delay in communication? Flow computer is having a scanning period of less than 1 sec.
what is function of sensor, and how is it work , explain with difination
how many type of plug are used in pneumatic control valve,name them.
What is the difference between ff transmitter and non ff transmitter
any body please send me the old question papers of ongc test.
How can we use feedback signal frm rtd for monitoring and in dcs for controlling ,then which type of rtd is sutaible 2 , 3,4wire and why ?
For crude application in floating roof tank, how to calibrate a DP Transmitter? How is the floating roof weight considered?
how pressurize drum calibrated ?
hi! i want to know about mpse exam.
How can measure flow in oil line?which type of transmitter is generally used?