Sensor project relating to thermistor

[vptran84]

Howdy,

I'm want to make a sensor dealing with thermistors, and i just don't know where to begin...Can someone please help me get started? The project can be anything...but I am leaning towards measuring the temperatures vs time. using thermistors. Any help would be greatly appreciated.

 

[willib]

what do you want the output to be ?
what is usually done is to connect the thermistor to an op amp , giving 0- 5 V output , then using either a microcontroller with a built in Analog to Digital converter (ADC)
or a stand alone ADC , connected to BCD to 7 segment decoder chips connected to 7 segment LEDs..
or the stand alone ADC connected to an LCD driver connected to an LCD ..

 

[willib]

of course you could allways eliminate the output and collect the data (as binary) right into your pc..

 

[vptran84]

thank you for your response...

i want the output to be in digital, and it should display the temperature vs. time.

initially, i was thinking of doing a temperature sensor using an LM75, FPGA, and verilog...and display it on a 7 segment display. But it is just too hard.

Do you know of any websites that has schematics of the sensor circuit? thanks

 

[dlgoff]

Do you know of any websites that has schematics of the sensor circuit? thanks

thermistor preamp