PATCH-TYPE PASSIVE SURFACE ACOUSTIC WAVE SENSING APPARATUS AND INTELLIGENT TIRE

摘要

A patch-type passive surface acoustic wave sensing apparatus and an intelligent tire. The patch-type passive surface acoustic wave sensing apparatus comprises a surface acoustic wave sensor (101) and comprises at least a first rubber sheet (201) and a second rubber sheet (202). The cross sections of the first rubber sheet (201) and the second rubber sheet (202) are larger than the cross section of the surface acoustic wave sensor (101). The bottom of the surface acoustic wave sensor (101) is located on the upper surface of the first rubber sheet (201). A first central hole (204) allowing the surface acoustic wave sensor (101) to penetrate through is formed in the center of the second rubber sheet (202). The surface acoustic wave sensor (101) penetrates through the first central hole (204). The second rubber sheet (202) is fixedly connected to the upper surface of the first rubber sheet (201). The surface acoustic wave sensor (101) comprises pins (102) disposed at the bottom of the surface acoustic wave sensor (101). Free ends of the pins (102) are connected to an antenna (103). The antenna (103) and part of the pins (102) are buried in the first rubber sheet (201). The patch-type passive surface acoustic wave sensing apparatus does not need a power supply, and has the advantages of small size and light weight, and has certain high-temperature resistance and high-pressure resistance performance.