Answer / ravishankar s.

The principle of Guided wave radar transmitter works on the principle of time and travel. Radar wave travels at the velocity of light. The flying time is converted into level signal via the electronic units. The probe emits high frequency wave pulses which travel along a cable probe or a rod probe.

you can easily understood like transmitter and receiver.

Answer / gamitsuresh

Gwr principle. Time domineering reflectrometry
The Pulses are travel guided with to process media when pulse reaches the surface of the material it is measuring differenc between

reflact to tx.and tx to surface of material time
It s convert to level

IF ASK IN THE INTENVIEW WHAT TYPE OF BMS YOU USE?

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Q1: Consider part of a control loop, which excludes the transmitter, consisting of a process, a controller and a control valve which may be represented by two dead times of 0.5 min each and three exponential lags of 0.8 min., 1.0 min. and 1.5 min. respectively. We wish to express this system as an overall first order plus dead time (FOPLD) model ie gain, time constant and process dead time. (We will see later that this is often done, to simplify controller tuning). For this exercise, gain is considered to be 1.0. (A) If the transmitter is a flow transmitter whose behaviour can be described by a dead time of 0.2 min. and an exponential lag of 0.5 min. in terms of the overall dead time and overall first order lag how can the system behaviour be approximated ? Overall dead time = Overall time constant = (B) If the transmitter is a temperature transmitter with a temperature sensor in a protecting well whose behaviour can be described by a dead time of 0.7 min. and an exponential lag of 15 min. how can the overall system behaviour be approximated now? Overall dead time = Overall time constant =

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