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
hello can yoy pls send me previous papers of jindalpower and steel ltd.....'m from instrumentation..... mani1048@gmail.com
What is the diffrence between digital signal processing and discrete signal processing?
What is the reason PT speed not incresed in gas turbine?
How to Calibrate Ultrasonic flow Transmitter in Field
Can any one tell me what type of question asked for instrumentation and control interview panel??? pls mail ramashankar.goel@gmail.com
all types of liquid analyzer principle with drawing?
Specify ideal accuracy of flow element like orifice plate, Ventury, Annubar. Ultrasonic flow meter etc.
Which type of diaphragm use in costic line, dm water line, natural gas line, oil line?
I have 0.75mm sq multicore cable (IS type) , can use instead of same type but 1.5 sq mm cable ? Note : The distance is around about 150 meter.
What is Erosion in a control valve?
Draw a great bridge circuit.
how to convert MA in to measuring values..and how mwasuring values into MA ?..plz ansr.i have intervw
What is Cavitation in a control valve?
how is work pressure switch& level switch?what is the principle of this?
what is interface level measurement.who can calibrate interface level measurement transmitter online
