ESE Lab Computer based Temperature Control Sid Deliwala, ESE Labs.

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Presentation transcript:

ESE Lab Computer based Temperature Control Sid Deliwala, ESE Labs

Computer based temperature control Advantages Adjustable software controlled temperature range Logging of all acquired data Graphical interface Several sensors can be connected to the controller

Requirements Temperature sensor with a voltage output A device to convert sensor output voltage to digital format (daq board) Software (LabVIEW) A hardware interface to turn the heater on/off

Project Description Power supply Circuit to turn on/off heater and measure temperature Data acquisition board installed in the PC LabVIEW software

Power Supply

Protoboard Connections

Test the 47ohm resistor

Circuit building, temperature sensor LM34 1 microfarad capacitor

Circuit building, heater control LM741 op amp pinout 5 volt relay pinout DC fan

Final Circuit

Computer Interface Data Acquisition Connection On PC

DAQ board and analog to digital conversion LabVIEW files have extension.VI (virtual instruments)

LabVIEW control diagram

What you will get.. Protoboard, jumper wires Parts packet PC based Temperature Control.VI file on the desktop of the PC