Buoyancy balancing type weighting device

Abstract

The invention relates to a buoyancy balancing type weighting device. The buoyancy balancing type weighting device is used for solving the problems of short range, low precision or high cost of a traditional balance or sensor. The buoyancy balancing type weighting device comprises a liquid storage tank, a hollow floater, a heavy stuff tray and a weighting sensor, wherein the hollow floater is equipped with a force-conducting rod and floats in the liquid storage tank; and the weighting sensor is connected with a measuring instrument through a data line. The technical points are as follows: a force-conducting rope connected with a fixing end plate at the top of the force-conducting rod is connected with a weight tray and the heavy stuff tray through a force-conducting support frame and a suspending rod; the heavy stuff tray is arranged above a buffering centering mechanism; the buffering centering mechanism is fixed on the weighting sensor; the preset balance and the weight mass on the weight tray are adjusted for balancing the gravity of a measured object and the buoyancy of the hollow floater; and the mass of the measured object is equal to the sum of the weight mass and the weight displayed by the measuring instrument and transferred by the weighting sensor. The buoyancy balancing type weighting device is reasonable in structure design; a short-range sensor can be used for realizing massive weighting; the measuring range is long; the precision is high; the cost is low; and the application scope is wide.

Description

technical field [0001] The invention relates to a weighing device, in particular to a buoyancy balance weighing device suitable for meeting the requirements of large mass or high precision. It can also be used for the verification and quantitative transmission of large weights, and the small weighing of large tares. Background technique [0002] The weighing accuracy of traditional balances or sensors is rated as a percentage of full scale. Owing to be subjected to the restriction of balance beam and knife bearing capacity, as the structure disclosed by " balance " of CN201476851U, measuring range is less. Some electronic balances are limited by the range and sensitivity of the sensor, so that the accuracy of the balance is limited by the range, especially because of the high cost, it is difficult to manufacture a balance with a large range. For the verification and quantitative transmission of large weights, large tare weight and small weighing, etc., it often cannot meet...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a buoyancy balance type weighing device, which solves the problems of small measuring range, low precision or high cost of traditional balances or sensors, and its structural design is reasonable, and the weighing weight is combined with a sensor with a small measuring range to realize large-scale weighing. The measurement range is large, the cost is low, the precision is high, and the application range is wide

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