what is diff between sensors and transducers.explain with
ex?
Answer Posted / asad haider
A sensor is a device that, as its name signifies, measures a physical quantity and then converts it into signals that can be read by the user or by any other instrument. Transducer, on the other hand is a physical device (Electrical, electro-mechanical, electromagnetic, photonic or photovoltaic) that converts either one type of energy into another or a physical attribute into another for the purposes of measurement or transfer of information.
| Is This Answer Correct ? | 1 Yes | 1 No |
Post New Answer View All Answers
Displace type LT to be calibrated in workshop, wt. 40, dia- 60 mm, density- 0.8kg/cm3.
How many types of sensor
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 =
what are the selections available in configuring a burnout protection of a controller? thanks
Specify for Cables - Flame Retardant and Fire Resistant?
Why mixer nd grinder Is example of constant torque load not variable torque load ???
what is cems analyzer explain with principle and drawing ?
What are the type of bonnets in the control valves?
WHAT IS MEANT BY PROJECT MANAGEMENT STRATEGIES IN INSTRUMENTATION?
can anyone tel the syllabus or previous year question paper for BHAVINI(EIE)2014.
what is scale factor of proximitor & unit of the vibration.
how can leve transmetter calibate in feild .and also put cv and flow plz .....
why we use cascade control and feed forward control in 3 element drum level control measurement of steam drum .what is cascade and feed forward control system ?give example .
What is eddy current? Describe the operating principle of proximity probe.
Draw symbols of the following :