Generalized measurement system: Generally a measurement system consists of 3 basic elements. Sensor/transducer. Signal conditioner. Display/read out devices. In addition to the above, electrical power is also required. display device system to input sensor/ signal be transducer conditioner controlled (Measurand) readout device power supply figure: block diagram of generalised measurement system input output speedometer (cable rotation) (speed of the vehicle) output Thermocouple (Heat) (Temperature) figure: concept of measurement Functions of each elements of measurement system: Sensor/transducer unit: The heart of any measurement or control system is sensor/transducer. Sensor/transducer is a device it converts the one form of energy to another form. Sensor/transducer it senses the physical phenomenon to be measure and transform it from one form to another form (generally electrical form). The output of this unit is input to the signal conditioner which is next element. output input Transducer (Another form) (one form) output input thermocouple (emf) (electrical form) (Heat) output presssure gauge (Mechanical form) (Displacment) (Pressure) Figure: basic concept of transducer
Generalized measurement system: Generally a measurement system consists of 3 basic elements. Sensor/transducer. Signal conditioner. Display/read out devices. In addition to the above, electrical power is also required. display device input sensor/ signal system to be (Measurand) transducer conditioner controlled readout power device supply figure: block diagram of generalised measurement system input speedometer output (cable rotation) (speed of the vehicle) Thermocouple output (Heat) (Temperature) figure: concept of measurement Functions of each elements of measurement system: Sensor/transducer unit: The heart of any measurement or control system is sensor/transducer. Sensor/transducer is a device it converts the one form of energy to another form. Sensor/transducer it senses the physical phenomenon to be measure and transform it from one form to another form (generally electrical form). The output of this unit is input to the signal conditioner which is next element. input (one form) input (Heat) (Pressure) Transducer output (Another form) thermocouple output (electrical form) (emf) presssure gauge output (Mechanical form) (Displacment) Figure: basic concept of transducer
MMP_Lecture-3.docx