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I recommend an online, contactless moisture measurement instrument. RIGA Industrial Measurement GmbH is a well-known German company specializing in radiation-based instruments; its headquarters are located in Bad Wildbad, in the Black Forest region of Germany. The company’s microwave online moisture meters, online ash analyzers and other products enjoy a high reputation internationally. German company RIG is a manufacturer of \"online\" products, specializing in the production of online microwave moisture meters, online infrared moisture meters, online radiation content analyzers, online density meters, and online potassium content testers. Manufacturing technology has a history of nearly 30 years. The product offers reliable quality and stable performance. The JK8404 online microwave moisture meter is a product that Jieshi Vision mainly promotes in the domestic metallurgy, mining, and calcium carbide industries. Sensor A emits low-frequency microwaves at 2.40 GHZ; the attenuation and phase shift that occur as these waves pass through a medium are primarily determined by the dielectric constant of the medium and its tangent of the loss angle. This microwave can penetrate most non-aqueous media such as conveyor belts, wood, and general non-metallic materials. Water is a polar molecule, and its dielectric constant and dielectric loss tangent are much higher than those of ordinary dielectrics. In simple terms, water can absorb microwaves; the more it absorbs, the higher its moisture content. By examining the attenuation of microwave power and changes in phase shift, as well as using an ultrasonic mass compensation probe to determine the instantaneous total mass, and by taking into account the total energy lost and the percentage of total mass, a microcomputer is utilized for this purpose