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Temperature indication other than thermometer

Temperature indication other than thermometer

Temperature indication other than thermometer

i want to indicate the temperature of plant.Suggest any device other than mercury thermometer and its source[reference].  


RE: Temperature indication other than thermometer

Try researching RTDs, thermocouples, thermistors, bimetallic thermometers, and IC temperature sensors. All are available with wide differences in characteristics from a variety of suppliers. Some of the above are active or passive electric/electronic devices, others require no electrical input. You could check with electrical supply stores, electronics stores, scientific equipment suppliers, etc. I don't want to specify any source by name, as I don't feel these forums should be used to promote any specific company over any other. Besides, from what I listed above, you should have no problem finding sources on the Internet. E-mail me if you need more information on the advantages and disadvantages of the types of sensors I listed above. Best of luck.

RE: Temperature indication other than thermometer

Temperature indication is a very advanced project. There are two good ways I can think of now. Easy Way : You could easily rig up a thermocouple(LM25Z) to a small millivolt meter and make checkpoints of different temperatures. You would calibrate this with a mercury thermometer. Or you could go the hardway :(
You could make a digital thermometer. (just buy one really, lol) It is very difficult to design and I havent to see a schematic yet. If your VERY interested in doing this yourself. I could design a thermometer for you(i am facing this challenge too, with a remote temperature sensor) and send it whenever I am finished.
Contact me, any questions
Steve McFadyen.

RE: Temperature indication other than thermometer

hi u can build on your own.

use Lm 335 national temp sensor provides 10 mv/ deg k , use front end diff amp to scale to degc / degf then connect it to a dpm to read temp of your interest , i think usual full scale range for this device is up to 7o deg , check manufacturers data sheet .

RE: Temperature indication other than thermometer

Don't forget when building your own temperature device the cold junction calculations that need to be taken into account.  Best buy one as this is already done for you and a device required to do this is quite cheep nowadays.

RE: Temperature indication other than thermometer

Suggestion: There are different liquids that could be used instead of mercury. The mercury thermometer may pose environmental hazards. Perhaps, colored alcohol/spirit or similar liquid would do almost the same job. These thermometers are very inexpensive.

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