Batch calibration method and device for air pressure sensors

A technology of air pressure sensor and calibration device, which is applied in the field of sensor calibration, can solve the problems of incompatibility, etc., and achieve the effects of wide compatibility, cost reduction, and connection harness reduction

Active Publication Date: 2016-05-11
BAOLONG HUF SHANGHAI ELECTRONICS CO LTD
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the calibration equipment and operating software are all aimed at a certain calibration chip and are not compatible.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Batch calibration method and device for air pressure sensors
  • Batch calibration method and device for air pressure sensors
  • Batch calibration method and device for air pressure sensors

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] figure 1 An air pressure sensor calibration device according to an embodiment of the present invention is shown. refer to figure 1 As shown, the sensor calibration device 100 includes a pressure box (not shown in the figure), a high and low temperature box (not shown in the figure), a level adapter board 110 , an acquisition board 120 and a computer (PC) 130 .

[0029] N (n is a positive integer) sensor products 200 to be calibrated are placed in the pressure box. The pressure tank can provide the pressure required for calibration of each sensor 200 . The pressure box has a plurality of tube socket feet, which are used to connect with the lines that need to be led out from the sensor product 200 . These tube socket pins can lead out the wiring harness from the pressure box to meet the docking requirements of the sensor 200 .

[0030] The pressure box is placed in a high and low temperature box. The high and low temperature box can provide three temperature points o...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a method and device for calibrating pressure sensors in batches. The device comprises at least one first MCU (Microprogrammed Control Unit), a level switch board, an acquisition board and a console, wherein each first MCU is arranged in a pressure sensor and is configured to enter into a calibration program as a response to a calibration command from the console, so as to calibrate the pressure of the pressure sensor and return a pressure value measured by the pressure sensor; the level switch board is connected with a communication line of each pressure sensor; the acquisition board comprises a level switcher, a multiplexer and a second MCU, wherein the second MCU is connected with the level switcher and the multiplexer and is configured to transmit data between the console and the at least one MUC; and the console is used for sending out the calibration command to start a calibration flow and also used for generating calibration parameters according to the pressure values measured by the pressure sensors and returning the calibration parameters to the pressure sensors, wherein the first MCU in the pressure sensors save the calibration parameters when receiving the calibration parameters.

Description

technical field [0001] The invention relates to sensor calibration, in particular to a batch calibration method and device for air pressure sensors. Background technique [0002] Sensor calibration is the process of using standard instruments with higher precision to calibrate the sensor, so as to establish the corresponding relationship between the sensor output and input. At the same time, the error relationship under different conditions of use is also determined. [0003] In order to improve efficiency, some manufacturers propose a mass calibration solution for sensors: solidify the calibration software in a calibration chip, solder the chip on the sensor product circuit board, connect the sensor bridge, and amplify the output value of the sensor, and control it. and detection. In addition, the chip also has a temperature sensor. By providing the sensor with different temperature points and pressure points, the measured parameters are compared with the real pressure an...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): G01L27/00
Inventor 孙路高峰李涛
Owner BAOLONG HUF SHANGHAI ELECTRONICS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap