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2. Infrared thermometer - Wikipedia

   en.wikipedia.org/wiki/Infrared_thermometer

   The distance-to-spot ratio (D:S) is the ratio of the distance to the measurement surface and the diameter of the temperature measurement area. For instance, if the D:S ratio is 12:1, the diameter of the measurement area is one-twelfth of the distance to the object.

3. Pyrometer - Wikipedia

   en.wikipedia.org/wiki/Pyrometer

   A pyrometer, or radiation thermometer, is a type of remote sensing thermometer used to measure the temperature of distant objects. Various forms of pyrometers have historically existed. Various forms of pyrometers have historically existed.

4. Thermal remote sensing - Wikipedia

   en.wikipedia.org/wiki/Thermal_Remote_sensing

   One of the most important applications of thermal remote sensing in earth sciences is to calculate the Land Surface Temperature (LST). LST is a measurement of how hot the land is to the touch. It differs from air temperature (the temperature given in weather reports) because land heats and cools more quickly than air. [15]

5. Temperature measurement - Wikipedia

   en.wikipedia.org/wiki/Temperature_measurement

   A medical/clinical thermometer showing the temperature of 38.7 °C (101.7 °F) Temperature measurement (also known as thermometry) describes the process of measuring a current temperature for immediate or later evaluation. Datasets consisting of repeated standardized measurements can be used to assess temperature trends.

6. Infrared and thermal testing - Wikipedia

   en.wikipedia.org/wiki/Infrared_and_thermal_testing

   Inset shows false color infrared thermograph of a roof on a sunny day; the white surfaces (colored blue in the thermograph) have been coated with an elastomer to reduce solar loading and have a surface temperature of approximately 60 °F (16 °C); the gray surfaces (colored red/white in the thermogram) are a standard asphalt (bitumen) coating and have a surface temperature of approximately 160 ...

7. Satellite temperature measurement - Wikipedia

   en.wikipedia.org/wiki/Satellite_temperature...

   Stratospheric temperature measurements are made from the Stratospheric Sounding Unit (SSU) instruments, which are three-channel infrared (IR) radiometers. [21] Since this measures infrared emission from carbon dioxide, the atmospheric opacity is higher and hence the temperature is measured at a higher altitude (stratosphere) than microwave ...

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9. Total station - Wikipedia

   en.wikipedia.org/wiki/Total_station

   A typical total station can measure distances up to 1,500 meters (4,900 ft) with an accuracy of about 1.5 millimeters (0.059 in) ± 2 parts per million. [4] Reflectorless total stations can measure distances to any object that is reasonably light in color, up to a few hundred meters.