WHEN DO WE GO FOR FMCW TYPE RADAR & PW TYPE RADAR ?
Answer Posted / naveed t p
FMCW - Frequency Modulated Continuous-wave radar.
PW - Pulsed wave radar.
I think PW is mostly used in Instrumentation of refineries
where its commmonly used in level measurement. This is
pulsed method making use of doppler frequency shift
principle. this uses more power
I think FMCW is used in moving objects like in
ships/submaries, where its possible to differentiate
between objects like boat & Hull. This makes uses of
continuous increasing frequency signal, this works at lower
power.
| Is This Answer Correct ? | 9 Yes | 0 No |
Post New Answer View All Answers
What is the differerence between hysterisis and linearity.
How many types of sensor
How many are the types of instrument cables in terms of No. of pair.
Explain why plc require in analog input 4-20amp & 0-10 volt?
what is the input of digital counter during the the calibration time?
what is the responsibility of an instrument commissioning supervisor
what is vibration a part of proceess variable? if vibration is a part variables then how we minimize the actual vibration on machine on load,? vision of instrumentation contrl plz ans me IPGDL interview question
Dear Sir/Madam,im going to attend Hpcl written exams on feb 17th in instrumentation stream..can anyone send me the HPCL model papers and pattern of HPCL ....i ve not yet attended anything in HPCL...so i dont know how it comes...so just i need some model test papers and pattern ..pls help me friends...
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 ?
What are different types of valves?
how to calculate control valve bonnet size?? or how to select its material?
if in a level tx height is given, how u calculate the ranges of the tx?
Why grounding is necessary? Give example with diagram.
why I need valve guard and whats different between guard and positioner ??
I am using 971 Enraf radar level transmitter for LPG tanks ,the tank side indicator gives the error code 999999999FL can any body give me any diagnostic for this issue?