Sensor for grain and oil moisture meter
A sensor and measuring instrument technology, applied in the field of analytical instruments, can solve problems such as unsatisfactory accuracy and stability, and achieve the effects of high work efficiency, high measurement accuracy, and improved measurement accuracy
Active Publication Date: 2015-08-12
山东大运河投资运营有限公司
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[0004] A sensor for a capacitive grain oil moisture analyzer described in patent application numbers 201310320398.2 and 201320452937.3 can realize rapid detection of grain oil moisture, is easy to use, and effectively changes the backward situation of traditional grain oil moisture determination. However, this grain oil moisture The accuracy and stability of the sensor measurement of the moisture analyzer is not very ideal
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[0029] Examples such as figure 1 , figure 2 , image 3 , Figure 4 As shown, a sensor for a grain oil moisture meter includes an outer cylinder 1 made of metal, the bottom of the outer cylinder 1 is detachably connected with a base 8 made of insulating material, and a retractable electrode 9 is fixed in the middle of the base 8 , the retractable electrode 9 stretches out from the top of the base 8, the base 8 is fixed with a travel switch 10, the pressure rod of the travel switch 10 stretches out from the upper end of the base 8, the bottom of the base 8 is fixed with a metal sheet 11, and the metal sheet 11 is connected to the outer surface of the base 8. The tube 1 is connected, and a spring clip 12 is provided under the base 8, and the spring clip 12 is arranged in the inner annular groove at the bottom of the outer tube 1, and the normally open switch of the travel switch 10 is connected between the measuring circuit and the trigger circuit, and the retractable electrod...
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The invention discloses a sensor for a grain and oil moisture meter. The sensor comprises an electrode and an inner cylinder, wherein the electrode comprises an electrode column and multiple electrode plates; the electrode plates are uniformly arranged on the surface of the electrode column and are arranged along the axial direction of the electrode column; the radius of the electrode column is 1 / 6-1 / 4 of the radius of the inner wall of the inner cylinder; the distance between the outer edge of each electrode plate and the inner wall of the inner cylinder is 1 / 10-1 / 8 of the radius of the inner wall of the inner cylinder; totally the three electrode plates are arranged; the sensor also comprises an electrode chassis; the electrode column is arranged on the electrode chassis; and the central axis of the electrode column is coincided with the central axis of the inner cylinder. The sensor has the advantages that the measurement accuracy is high, and compared with a conventional sensor adopting a cylindrical electrode, the sensor disclosed by the invention has the advantage that the measurement accuracy is improved by 17-35 percent; the stability is high and is improved by 19-28 percent; and the sensor is convenient and rapid to use and high in working efficiency.
Description
technical field [0001] The invention relates to a measuring instrument, in particular to a sensor for a grain oil moisture measuring instrument, which belongs to the technical field of analytical instruments. Background technique [0002] Grain oil moisture detection is of great significance to the purchase, transportation, storage, processing and trade of grain. Excessive moisture wastes transportation capacity and storage capacity, promotes vigorous life activities of grain and oil plants, and easily causes heat, mildew, insects and other biochemical changes in grain and oil plants. In my country, due to the imperfection of moisture detection technology, tens of billions of catties of grain and oil are rotted and deteriorated during transportation and storage due to high moisture content every year, causing huge losses. However, the moisture content of grain oil is too low, which reduces the weight of grain oil and affects grain indicators. Therefore, moisture has always...
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IPC IPC(8): G01N27/00
Inventor 窦英明
Owner 山东大运河投资运营有限公司