I think this is how the cheap plastic guages work...Originally Posted by Lion
Ahahaha, and I suppose it would help for me to know exactly how the plastic gauge works, eh?My initial thought is just that the sensor is a thousand times more complicated than the gauge... but maybe I'm just a bit wary of electronics, since they more often than not seem to dislike me.
Metal Coil Thermometers (thermostats)
As with liquid thermometers, the metal winding expands or contracts in response to the energy absorbed from the air or liquid around it. This expansion pushes the end of the metal indicator back and forth in the dial face.
Hovabator incubators use this type of "wafer" thermostat...
Here's how the fancy infrared temp guns work...
The infrared gun detects the heat signature of an object with optic sensors. These sensors are a series of lenses and mirrors that condense the infrared energy that an object omits onto a detector that transforms the infrared energy into an electrical signal. This signal is interpreted and turned into a temperature reading on the gun's display.
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