ese lab computer based temperature control sid deliwala, ese labs
Post on 21-Dec-2015
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ESE Lab
Computer based Temperature Control
Sid Deliwala, ESE Labs
http://www.waltonemc.com/Newsletter_Archive/2002_02February.htm
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 microfaradcapacitor
Circuit building, heater control
LM741 op amppinout
5 volt relay pinout
DC fan
Final Circuit
Computer Interface
DataAcquisitionConnectionOn 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