please can anyone tell me in detail, what's mean by open
loop and close loop?
Answer Posted / akhil pawar
in open loop,op signal is not given to set point again,
means feedback is absent.so if op is not as we desird we
have to adjust it manually.
while in closed loop, op value is given to set point through
feedback path. when op value is given to set point , it
compare it and produce error signal which processes further
and desired value for op is adjusted autmatically.
in all modern control system, feedback is used.
Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
Make a ladder diagram on LSL valve will close, on PSL valve will open and start the motor
all questions related to instrument technician in any offshore oil and gas company.
Coal mill Instruments Equipments for cement plant And process diagram ?
How to regulate the flow of Air in 4" line, with max flow of 330 nm3/hr and Pressure of 0.5 bar? please suggest the type of instrument required.
how many type conductivity sensor ?
How does your previous experience relate to the job you are applying for ?
How many interlocks at turbine? Plz explain briefly
HI friends.I am Surya a BTech in Electronics and Instrumentation Engineering.I am going to appear Relince Industries Ltd all India writen test very soon. so plz help me by sendind the probable questions about my subject.My mail ID is surya.barik@gmail.com.
how to commission furnace ( water heater)
a flow transmitter [range-0-400mbar] connected in process line. please explain me how to calibrate the flow transmitter , & how to do static error
I faced several time siemens ps2 positioner automatically getting Chang in it's set point direction after auto calibration So is there any causes biside this or any permissives ?
what is the minimum power (P=VI)to produce a spark?
In which principles tx ,pressure gauge,Temp gauge,control valve works?
what is 24vdc live and dry supply
Explain the use of hair spring in the pressure gauge.