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Balancing magnetic weighing instrument

A weighing instrument and balancing technology, which is applied in the field of electronic weighing instruments, can solve the problems of affecting the weighing accuracy, affecting the weighing accuracy, and the large deformation range of elastic elements, so as to shorten the weighing time, quickly reflect the reading, and reduce the deformation. The effect of narrowing the range

Inactive Publication Date: 2004-02-25
上海虎能电器有限公司
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Problems solved by technology

The disadvantage of this electronic weighing instrument is that the deformation range of the elastic element is large, such as the weighing range is between 1g and 10kg, and the deformation range of the elastic element is 10,000 times
Elastic elements with a deformation range of 100,000 times cannot guarantee strict linearity in such a wide range, which will inevitably affect the accuracy of weighing
The elastic element and the piezoresistive sensor also have mechanical fatigue, so that the linear compensation of the whole machine cannot be covered, thus affecting the weighing accuracy
And due to the impact force and the rebound force of the elastic element when putting in the heavy object, it will cause the damping oscillation of the elastic element, which will delay the appearance of the correct reading

Method used

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  • Balancing magnetic weighing instrument
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Examples

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Embodiment Construction

[0010] figure 1 The weighing pan 1 and the fixed frame 2 are flexibly connected with nuts and screws, the light baffle plate 4 is fixedly connected with the fixed frame 2 with screws, and the magnetic block 9 is made of magnetically conductive material, and is bonded with the fixed frame 2 with superglue . Elastic piece 10 is made rectangular shape with metallic copper, and its two sides are thick, and up and down is thin sheet, to form trace elasticity, and its two sides are respectively fixedly connected with fixing bracket 2 and shell 3 with screws. The E-type magnetic core 7 is bonded to the shell 3 with superglue. The light transmitter 5 and the light receiver 6 are connected with the housing 3 by appropriate methods. The coil package 8 is fixedly connected with the E-type magnetic core 7 with superglue. The installation positions of the light emitter 5 and the light receiver 6 should meet: a: When no heavy object is placed on the weighing pan, the light quantity of th...

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Abstract

The present invention relates to a balance magnetized weighing instrument for displaying weight of body by utilizing current of balance magnetized electromagnetic force. In its structure it utilizes light to detect the deformation of the elastic element, and the detected photoelectric signal is amplified to produce electromagnetic force to resist the deformation of the elastic element, and the intensity of the current of the electromagnetic force can be used for representing the weight of body, so that its weighing speed is quick and weighing result is accurate.

Description

technical field [0001] The invention relates to a weighing instrument, in particular to an electronic weighing instrument for measuring the weight of an object by balancing the deformation of a magnetized elastic element. Background technique [0002] The basic principles of electronic weighing instruments in the prior art are to measure the weight of objects by using the deformation of elastic elements. For objects of different weights, the elastic element produces different degrees of deformation, which is converted into an electrical signal through the piezoresistor to display the weight of the object. The disadvantage of this electronic weighing instrument is that the deformation range of the elastic element is large, such as the weighing range is between 1g and 10kg, and the deformation range of the elastic element is 10,000 times. Elastic elements within a deformation range of 100,000 times cannot guarantee strict linearity in such a wide range, which will inevitably ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01G7/02
Inventor 盛奕玮
Owner 上海虎能电器有限公司
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