A sampling piece for resistance online moisture meter

Abstract

The invention discloses a sampling piece for a resistance-type online moisture tester. The sampling piece comprises a sampling plate, wherein four corners of the sampling plate are all provided with circular grooves, the center point of the sampling plate serves as a dot, and snags are uniformly distributed around the periphery and the dot, ,; the sampling plate is made from a zinc alloy, the outer surface of the sampling piece is coated with a chromium layer, a lubrication layer and a waterproof layer in sequence; the sampling piece matches with a material spoon, the panel of one end of a sampling nut is in squeezed cooperation with the material spoon, the sampling nut is in threaded connection with a sampling threaded rod, a grain is placed in a sampling hole, the rotation, squeezing andfriction of the sampling threaded rod and snags on the sampling piece are used for grinding the grain so as to measure the moisture value in the grain, the arrangement of the tapered snags can enlarge the friction between the sampling threaded rod and the snags, so that the grain can be crushed easily, accurate data can be measured conveniently, the grain remaining on the sampling threaded rod and the snags can fall off easily, and the measurement of a next grain is not affected.

Description

technical field [0001] The invention belongs to the technical field of measuring instrument manufacturing, and in particular relates to a sampling sheet for a resistance online moisture meter. Background technique [0002] Moisture content in grain is an important indicator for evaluating grain quality, and it is also the main reference basis for purchasers to grade and set prices. A difference in moisture is worth a penny per catty. The state divides grain quality into five grades. The bulk density of wheat and corn, and the roughness rate of rice are the main indicators. The first grade is the highest, the fifth grade is the lowest, and the grain below the fifth grade is the second grade. Other foreign-grade grains are priced by the purchasing enterprises according to the market conditions and purchased by themselves. The method of increasing the amount of grain moisture, impurities, etc. has been clearly stipulated. For example, if the content of moisture, impurities, an...

AI Technical Summary

Problems solved by technology

This kind of moisture meter has rolling instability, uncontrollable feeding, grain residue, rolling grain sticky instrument, excessive or too small rolling pressure, difficult adjustment of rolling pressure, unstable measurement results and large deviation of measurement results And when measuring the moisture content of different grains, it is necessary to use different types of moisture meters, otherwise there will be the disadvantage of increasing the measurement error and increasing the cost of use

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