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Multiple precision measuring method

A precision measurement and precision technology, applied in measurement devices, analog/digital conversion calibration/testing, instruments, etc., to solve problems such as impossible to obtain

Inactive Publication Date: 2006-12-13
郭永伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The basic understanding or common sense about sensors and A / D converters is: the accuracy of measurement data obtained through sensors or A / D converters is less than or equal to the physical accuracy of sensors or A / D, or in other words, it is impossible to obtain higher than the measurement device itself Measurement results of physical accuracy

Method used

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Examples

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Embodiment Construction

[0004] Assume that the nth measured result is u n , if we take the mean once, the doubling accuracy measure is

[0005] u n-1 =0.5u n-1 +0.5u n

[0006] If we were using two mean calculations, the doubling accuracy measure would be:

[0007] u n-2 =0.25u n-2 +0.5u n-1 +0.25u n

[0008] Using the average value of three times or more, it can be deduced in the same way.

[0009] In the design of measuring instruments (including sensors and various A / D conversion devices), the method of calculating the average value several times should be determined according to the specific situation. If the second average value processing is used, the data processing process is as follows (M0, M1, M2 are three registers, which are used to store three adjacent actual measurement results respectively, and PT is the memory address pointer register):

[0010] 1. M1→M0

[0011] 2. M2→M1

[0012] 3. I / 0→M2 (read sensor or A / D)

...

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Abstract

The invention relates to a multiplicative accuracy measurement method which can be applied in sensors, A / D devices manufacture field, measurement instrument making and measurement data processing fields. The invention is characterized in that it can improve measurement accuracy dramatically.

Description

technical field [0001] The multiplied precision measurement method can be applied to various technical fields related to measurement, such as the design and manufacture of various sensors and A / D devices, the design and manufacture of measuring instruments, and the measurement data calculation and processing technology. Background technique [0002] The basic understanding or common sense about sensors and A / D converters is: the accuracy of measurement data obtained through sensors or A / D converters is less than or equal to the physical accuracy of sensors or A / D, or in other words, it is impossible to obtain higher than the measurement device itself Measurements of physical accuracy. This basic common sense is the basic principle for designing all kinds of measuring equipment, and it is also the basic basis for selecting the accuracy of sensors. The present invention breaks through this common sense understanding, and can greatly improve the measurement accuracy by improvi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D3/00H03M1/10
Inventor 郭永伟
Owner 郭永伟