Conduction, convection and radiation are all involved in temperature sensing, for temperature to be measured or sensed, Temperature sensing however differs among different types of devices, some require close proximity to the measurement or detection point while some necessarily doesn't require proximity. Below is an illustration of how individual sensing device works to detect temperature change:
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When measuring temperature of small objects for instance ant, the temperature we get an average temperature ant and the adjacent surface because of the field of view (FOV). This indicated the field of view been an important factor when using infrared temperature device. Conclusively, it should be noted that temperature measurement can take place as long as the FOV is filled by the target.
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