Weighing device, method and sensor and storage medium

A technology for weighing devices and storage media, applied in measuring devices, weighing equipment testing/calibration, weighing equipment using elastically deformable parts, etc., can solve problems such as weighing errors in weighing systems, and improve production efficiency Effect

Inactive Publication Date: 2018-11-13
METTLER TOLEDO (CHANGZHOU) MEASUREMENT TECH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The technical problem to be solved by the present invention is: in order to overcome the weighing error of the weighing system caused by the angular difference in the actual application of the load cell in the prior art, a method that can realize the position measurement and angle measurement of the load cell is provided. Difference-adjusted weighing system and method thereof

Method used

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  • Weighing device, method and sensor and storage medium
  • Weighing device, method and sensor and storage medium
  • Weighing device, method and sensor and storage medium

Examples

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Embodiment 1

[0048] like figure 1 As shown, in this embodiment, the object to be measured is placed on the weighing platform 1 for weighing. The load cell 2 converts the weight of the measured object into the deformation of the elastic element, and then converts it into an electrical signal for identification and measurement, so as to obtain the weight of the measured object.

[0049] figure 2 It is a schematic diagram of the strain sensor of this embodiment, wherein the strain gauge 3 is pasted on the position-sensitive area of ​​the elastic body of the load cell to measure the loading position of the measured object on the weighing platform. In this embodiment, a total of 4 strain gauges form a Wheatstone bridge Detect the deformation of the elastic body. In this embodiment, four strain gauges are attached to the position sensitive area of ​​the surface of the beam near the weighing pan among the two parallel beams of the elastic body. The position sensitive area is the area where th...

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PUM

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Abstract

The invention discloses a strain type sensor. An elastic body of the sensor is provided with two groups of foil gauges used to convert the weight into electric signals respectively. The invention provides a weighing method. The weighing method comprises the following steps that the strain type sensor is used to obtain a weight value of a measured object; the position of the gravity center of the measured object on a scale pan is calculated; and an angle difference compensation value is calculated according to the position of the gravity center, and a compensated weight value is output. The invention further provides a weighing device using the weighing method and a storage medium storing a weighing method execution program. The angle difference compensation value is obtained from the position of the gravity center, the angle difference of the position of the gravity center at any position of the scale pan is corrected, and method is more suitable for angle difference compensation in practical application. The angle difference machining link can be omitted thoroughly in the manufacture process, any procedure to measure and record gravity and angle difference relation is not needed,and the production efficiency is improved.

Description

technical field [0001] The invention relates to a weighing device and method for angle difference adjustment, in particular to a weighing device and method for automatically adjusting angle difference. Background technique [0002] The load cell is the basic component for measuring the weight of an object. It converts the weight of the measured object into the deformation of the elastic element, and then converts the deformation of the elastic element into an electrical signal for identification and measurement to obtain the weight of the object being weighed. [0003] The angular difference is an important indicator of the application of the load cell and the performance of the weighing system, but the initial angular difference performance of the loading output at each position on the weighing platform cannot meet the requirements and measurement standards of practical applications. [0004] At present, the adjustment of the angle difference of the strain gauge sensor main...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01G3/14G01G23/01
CPCG01G3/1414
Inventor 吴建伟顾文波谢国俊
Owner METTLER TOLEDO (CHANGZHOU) MEASUREMENT TECH CO LTD
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