Measurement of temperature is an important task in a large number of physical processes. A transducer in a device which converts the temperature information into an electrical signal, usually voltage, for an automated processing. A very wide variety of temperature transducers are commonly available which differ from each other with regards to there:

        - Range of operation - Sensitivity and linearity
        - Accuracy, Stability and Repeatability
        - Speed of response
The present experiments has been designed to study the input output characteristics of some common transducers like, thermistors NTC type, K-type thermocouple, Platinum type Pt100, semiconductor sensors and may be extended to also study the temperature coefficients of resistances.
 
The main requirements for an experiment of this nature are,
 A precisely controlled from oven with a temperature display which is fast 
 B An adjustable gain instrumentation amplifier which may be used to amplify the different levels of signals from transducers 
 C Interfacing circuits suitable for the transducers used. 

Features

•  Study of 4 different temperature transducers - NTC thermistors, RTD Platinum, K(Cr-Al) thermocouples, IC temperature sensors.
• Study & comparison of Temperature transducer controlled alarm system.
•  PID control: P, P I, P D & P I D control action 
• Instrumentation amplifier, adder amplifier : X1 , X100, X235, P controller , I controller, D controller Comparator Electronic switch, Signal conditioning, Rotary / Slide pots , Heater, Relay, Buzzer, LED