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Others may record input from GPS devices. Depending on the use, governing quality management systems sometimes require calibration to national standards and compliance with formal verification and validation protocols [1] Choices of temperature data loggers can be based on many factors, such as: Cost; Reusability; Battery life
A chart recorder is an electromechanical ... A circular chart recorder tracking temperature in a building ... In modern strip chart recorders, a disposable cartridge ...
The pen traces a rising and falling line on a strip of paper attached to a slowly turning drum. The drum usually makes one turn every seven or so days, so afterward each strip of paper contains a complete and accurate record of temperature changes for a whole week. The bimetallic strip is usually made from steel and copper.
The resolution of liquid crystal sensors is in the 0.1 °C (0.2 °F) range. Disposable liquid crystal thermometers have been developed for home and medical use. For example if the thermometer is put onto someone's forehead, it will change colour depending on the temperature of the person's body. There are two stages in the liquid crystals:
Weather stations typically have these following instruments: . Thermometer for measuring air and sea surface temperature; Barometer for measuring atmospheric pressure; Hygrometer for measuring humidity
Here's how average highs rise from Feb. 1 to mid-May: Atlanta: 55 degrees on Feb. 1 → 66 degrees on March 15 → 74 degrees on April 15 → 81 degrees on May 15 Dallas-Fort Worth: 59 degrees on ...
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A thermo-hygrograph. A thermo-hygrograph or hygrothermograph is a chart recorder that measures and records both temperature and humidity (or dew point).Similar devices that record only one parameter are a thermograph for temperature and hygrograph for humidity.
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