Unlock instant, AI-driven research and patent intelligence for your innovation.

Apparatus and method for testing a pressure sensing mat

A technology for testing pressure and testing device, applied in the direction of measuring device, measuring fluid pressure, measuring force, etc., can solve problems such as limitations

Inactive Publication Date: 2007-10-03
IEE INT ELECTRONICS & ENG SA
View PDF5 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This structure is not suitable for all types of pressure sensing pads, so known methods of this kind are limited to certain types of pads

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
  • Apparatus and method for testing a pressure sensing mat
  • Apparatus and method for testing a pressure sensing mat
  • Apparatus and method for testing a pressure sensing mat

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] In the following description, apparatus and methods for testing the functionality of pressure sensing mats will be discussed with reference to specific types of pressure sensing mats. However, the skilled artisan will understand that the present invention is not limited to the types of pressure sensing mats discussed herein. In contrast, the present invention is suitable for testing various flexible pressure sensing mats. For example, the pressure sensing mat 10 comprises a first carrier foil 12 and a second carrier foil 14 which are arranged at a distance apart by a spacer layer 16 . The spacer layer 16 has openings defining chambers or cavities 18, 19 with pressure sensing resistors. For simplicity of the drawing, the electronic components of the chamber (electrodes, pressure sensing layer, etc.) are not shown in the drawing. Pressure sensing mat 10 may include, for example, felt layers 20, 22 attached to respective outer surfaces of carrier foils 12, 14, as shown i...

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

A testing apparatus for testing a pressure sensing mat comprises a support plate for arranging thereon a pressure sensing mat to be tested, a pressure source and a pressure chamber, fluidly connected to the pressure source for generating pressure in the pressure chamber. The pressure chamber is partially delimited by a substantially fluid-tight flexible membrane operationally arranged in facing relationship to the support plate. In operation, the flexible membrane transmits pressure generated in the pressure chamber onto the pressure sensing mat when the pressure sensing mat is arranged on the support plate. The apparatus further comprises a diagnostic circuit connectable to the pressure sensing mat for measuring an electrical response of the pressure sensing mat to the pressure transmitted thereon by the membrane.

Description

technical field [0001] The present invention relates generally to the manufacture of pressure sensing mats, and more particularly to testing apparatus and methods for testing pressure sensing mats. Background technique [0002] Pressure sensing mats are well known, eg in the automotive field, for classifying the occupancy of a passenger seat of a vehicle. Occupancy classification with pressure-sensing mats is based on the recording of pressure profiles exerted on the seat by persons or objects occupying the seat. There are different types of pressure sensing pads known to those skilled in the art. [0003] The broadest type of pressure-sensing mat includes an array of individual pressure-sensing resistors distributed at several locations on the seating surface of a vehicle seat. The resistance of these pressure sensing resistors changes according to the pressure applied across them. Reading the resistance of each pressure sensing resistor gives an indication of the pressu...

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 Applications(China)
IPC IPC(8): G01L1/00G01L1/18
CPCG01L27/005G01L27/007
Inventor 克里斯蒂安·格鲁斯迪特尔·福斯特尔斯特凡·比尔克
Owner IEE INT ELECTRONICS & ENG SA