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         There have always been problems in grain preservation. The main factors affecting grain drying are: ambient temperature and humidity, exhaust temperature and humidity, hot air temperature, air volume, grain discharge speed, grain moisture content, drying time, grain layer thickness, etc. The moisture in the grain itself will also cause the grain to become moldy over time. Therefore, in addition to controlling the external environment, the grain itself needs to be dried so that the grain can be preserved for a long time. In terms of drying the grain itself, NTC heat is needed. The role of sensitive resistor.

          After the grains are harvested and impurities are removed, the grains need to be dried, so that the grains can be stored for a longer period of time, which can also reduce the weight of the grains and reduce the corresponding transportation costs. During the drying process of grains, it is necessary to carry out sensor detection on the drying process of grains. During drying, a large amount of water in the grain is evaporated. At this time, the evaporated water has a certain temperature. Heat sensing of the evaporated water becomes a means of detecting grain drying. However, during the drying process, the heat-containing water vapor does not rise quickly enough or is prone to drift, resulting in inaccurate heat detection of the water vapor at the current location. In addition, due to mechanical vibration or air flow, floating grain dust can affect NTC. The thermistor detection element causes wrapping, which affects the sensing accuracy of the detection element. Therefore, there are high requirements for the accuracy of NTC thermistors. The NTC thermistor designed and produced by Nanjing Shiheng Electronic Technology Co., Ltd. for grain dryers can fully meet the above requirements and has been adopted by many grain dryer manufacturers.

Nanjing Shiheng Electronic Technology Co., Ltd. is a national high-tech enterprise specializing in the production of NTC thermistors and temperature sensors, and a national-level specialized special new small giant enterprise. It produces temperature measurement products with various specifications, small size, and high accuracy. High, fast response speed, long life, high reliability, and the product has a high degree of consistency and interchangeability, and is deeply favored and praised by users in the grain dryer!