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Temperature drift emendation method and its system

A temperature drift and temperature control system technology, which is applied in the direction of measuring inclination, measuring devices, instruments, etc., can solve problems such as temperature drift, lower detection accuracy, and analog deviation, and achieve the effect of improving accuracy

Inactive Publication Date: 2011-04-20
ASIA OPTICAL CO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for most level sensors, the effect of temperature drift usually occurs
For example, when the ambient temperature changes, even if the level sensor is on the same plane, the output analog value will deviate, which will reduce the detection accuracy of the level sensor

Method used

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  • Temperature drift emendation method and its system
  • Temperature drift emendation method and its system
  • Temperature drift emendation method and its system

Examples

Experimental program
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Embodiment Construction

[0026] figure 1 A correction system for temperature drift according to an embodiment of the invention is shown.

[0027] The temperature drift correction system 100 can be used in a level meter or a related device that requires temperature correction. As shown in the figure, the temperature drift correction system 100 according to the embodiment of the present invention at least includes a level sensor 110 , an amplification unit 120 and a processing module 130 .

[0028] The level sensor 110 can detect the angle of the plane where the sensor is located, and output signals including temperature data and level raw data through a serial peripheral interface (SPI). The amplifying unit 120 receives signals from the level sensor 110 and amplifies the temperature data and the original level data respectively. The amplifying unit 120 transmits the amplified temperature data and horizontal raw data to the processing module 130 . The correction curve and correction formula (not show...

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Abstract

The invention is related to a temperature shift compensation system comprising a horizontal sensor and a processing module. The horizontal outputs a horizontal original data and a temperature data which are received by the processing module, and a particular deviation value of the temperature data with respect to a reference temperature is calculated according to the temperature data and a compensation formula, to compensate the horizontal original data by the particular deviation value.

Description

technical field [0001] The invention relates to a method and system for correcting temperature drift, in particular to a method and system for correcting temperature drift of a level meter or a device requiring temperature correction. Background technique [0002] The core component of the electronic spirit level is the level sensor. Level sensors can be used to detect the angle of the plane on which the sensor is placed. Through the data detected by the sensor, the inclination of the device including the level gauge can be determined, and related control can be carried out according to the detected data. [0003] When the level sensor is fixed on a stable plane, the level sensor will transmit an analog value corresponding to the plane to indicate the position of the plane. However, for most level sensors, there is usually an effect of temperature drift. For example, when the ambient temperature changes, even if the level sensor is on the same plane, the output analog val...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C25/00G01C9/00
Inventor 简张勇李祎奇
Owner ASIA OPTICAL CO INC