1 > HOW TO MEASURE INTERFACE LEVEL
2 > DIFFERENCE BETWEEN RADAR & ULTRASONIC LEVEL TRANSMITTER
Answers were Sorted based on User's Feedback
Answer / rajendra mallick
Radar level sensor work with high frequency radar which are
guide along a probe,As the pulse impact the medium the
impedence changes and part of the emitted pulse is reflected
The time between pulse launcing and recieving is measured
and level calculated.
Ultrasonic level sensor works on sound wave principle,
direct sound wave brust on onto the surface of the material
whose level is to be measured, echos of these waves returns
to the transducer which perform the calulation to convert
the distance of wave travel.
Is This Answer Correct ? | 9 Yes | 1 No |
Answer / rahul
Radar level measurement is measuring the time required for
the microwave
pulse and its reflected echo to make a complete return trip
between the non-contacting transducer and the
sensed material level. Then, the transceiver converts this
signal electrically into distance/level and
presents it as an analogue and/or digital signal. The
transducer’s output can be selected by the user to be
directly or inversely proportional to the span.Radar level
transmitters provide non contact type of level measurement
in case of liquids in a metal tank.They make use
ofelectromagnetic waves usually in the microwave X-band
range which is near about 10 GHz.
Ultrasonic level instruments operate on the basic principle
of using sound waves to determine liquid/
solid/slurries level.Ultrasonic Level Transmitters consist
of two elements; 1) a high efficiency transducer and, 2) an
associated electronic transceiver. Together, they operate
to determine the time for a transmitted ultrasonic
pulse and its reflected echo to make a complete return trip
between the non-contacting transducer and the
sensed material level.The frequency range for ultrasonic
methods is in the range of 15...200 kHz.
Is This Answer Correct ? | 1 Yes | 0 No |
explain level transmitter working
flow transmeter accuracy 0.075% of full scale & find ucertainty is 0.025 % so what is maximum limit band of uncertainty
Why drum level range is given -500 to 0 mmwc pls give me that answer
what is the criteria to decide conductor size of a cable ?
How many interlocks at turbine? Plz explain briefly
0 Answers MRPL Mangalore Refinery and Petrochemicals Limited,
how u meassure room temp?is it possible 2 meassure room temp by rtd or thermocouple?between rtd n thrmocouple which is more regard?3 meassure diff. between rtd n thermocouple?
Explain ratio control system.
How many input(Analog and digital) and outputs(Analog and digital) are there in DELTA v DCS Version 7.0?
What is standard of DCS panel design?and what is step of DCS panel design?wiring and type of connector(screw or DB connector)
What is Integral and Derivative control?
what is vfd(variable frequency drive)?type of vfd.
Difference b/w SCADA & DCS