Understanding Infrared Thermometers
Before determining whether an infrared thermometer can measure temperature through glass, it’s essential to understand the way these devices work. Infrared thermometers function by detecting the infrared energy emitted from an object and converting it into an electrical signal. This electrical signal is then transformed into temperature readings on the thermometer’s display.
How Infrared Thermometers Work
Infrared thermometers utilize a lens to focus the infrared energy emitted from an object onto a detector, which in turn converts the energy into an electrical signal. The electrical signal is then amplified and transmitted to a microprocessor, which performs a temperature calculation based on the signal received. This calculation is then displayed on the thermometer’s screen.
The Effect of Glass on Infrared Thermometers
The short answer is that infrared thermometers cannot measure temperature through glass. Glass is a poor transmitter of infrared energy, which means that little to no energy will be detected by the thermometer’s detector. The infrared energy emitted from the object will not be able to pass through the glass, leading to inaccurate temperature readings.
Alternatives to Infrared Thermometers
If temperature readings through glass are necessary, alternative temperature measuring devices such as thermocouples or contact thermometers can be utilized. Thermocouples are particularly useful when measuring high temperatures and can be used to get accurate readings through glass or other transparent materials. Contact thermometers, such as digital stick thermometers, can be used to accurately measure surface temperature readings as well.
Final Considerations
When considering temperature readings through glass using an infrared thermometer, it’s important to keep in mind that this is not a viable option. The inability of infrared energy to pass through glass limits the effectiveness of these thermometers in this type of setting. As such, alternative temperature measuring devices should be utilized in this setting to ensure accurate readings.
