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Method for automatic aligning in human body fatty measuring instrument

A body fat and automatic calibration technology, which is applied in diagnostic recording/measurement, medical science, sensors, etc., can solve problems such as calibration processing of measured values, unstable measurement data, and influence on the accuracy of fat percentage, so as to achieve small errors and accurate measurement Effect

Inactive Publication Date: 2008-01-09
上海力申科学仪器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, due to factors such as the use environment and the discreteness of components, the measurement data may be unstable, thus affecting the accuracy of the fat rate
However, the original body fat measuring instrument did not calibrate the measured value

Method used

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  • Method for automatic aligning in human body fatty measuring instrument
  • Method for automatic aligning in human body fatty measuring instrument
  • Method for automatic aligning in human body fatty measuring instrument

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] As shown in Figure 2, it is the measurement schematic diagram of the body fat measuring instrument of the present invention, a standard resistor R is installed between the left electrode LI, the left electrode LV, the right electrode RI and the right electrode RV quadrupole of the body fat measuring instrument, The standard resistance R and the left electrode LI are connected through the analog switches S3 and S7, the standard resistance R and the left electrode LV are connected through the analog switches S4 and S8, and the standard resistance R and the right electrode RI are connected through the analog switches S1 and S7. S5 is connected, and the analog switch S2 and S6 are connected between the standard resistance R and the right electrode RV, and eight analog switches control the switching between the electrode and the standard resistance.

[0023] As shown in Figure 3, it is a flow chart of the method program for automatic calibration in the body fat measuring inst...

Embodiment 2

[0025] If you need to reduce the cost, replace the four-stage method in the figure with the two-stage method. This method is also applicable. In the two-stage method, the left electrode LI and LV can be combined into L, and the right electrodes RI and RV can be combined into R, S1 , S3 are connected to the standard resistor R, and S5 and S7 are respectively connected to the left and right pole pieces, as shown in Figure 4.

[0026] The implementation method is the same as the four-level method. When measuring the standard resistance R, S1 and S3 are turned on, and S5 and S7 are turned off; when measuring the body resistance, S1 and S3 are turned off, and S5 and S7 are turned on.

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Abstract

The present invention relates to an automatic correction method of human body fat measuring instrument. Said method is characterized by that between left electrode LI, left electrode LV, right electrode RI and right electrode RV a standard resistor R is mounted, and said invention utilizes chip computer assembler language program or C assembler language program and applies AC constant-current source to said standard resistor R to measure standard resistor R value, then utilizes said standard resistor R value and slope formula to calculate human body resistance value so as to ensure measurement accuracy of human body fat rate.

Description

technical field [0001] The invention relates to an automatic calibration method in a body fat measuring instrument, in particular to an automatic calibration method using the measurement result of a standard resistance as a standard, and belongs to the technical field of personal medical fat measuring instruments. Background technique [0002] The body fat measuring instrument is used to measure the fat content in the human body, and calculate the body fat rate and comprehensively judge the fat and thin status of the human body through the data such as height, weight, age, and gender input by the user. It serves as a good reference for users to correctly judge their own fat content and obesity. [0003] The body fat measuring instrument uses the bioelectrical impedance (BIA) method, as shown in Figure 1, the left hand of the human body is in contact with the left electrodes LI, LV, and the right hand is in contact with the right electrodes RI, RV, and the electrodes on the i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/053
Inventor 吴峻李铭捷
Owner 上海力申科学仪器有限公司
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