JPS5657929A - Tire air pressure measuring device using microwave - Google Patents
Tire air pressure measuring device using microwaveInfo
- Publication number
- JPS5657929A JPS5657929A JP13321079A JP13321079A JPS5657929A JP S5657929 A JPS5657929 A JP S5657929A JP 13321079 A JP13321079 A JP 13321079A JP 13321079 A JP13321079 A JP 13321079A JP S5657929 A JPS5657929 A JP S5657929A
- Authority
- JP
- Japan
- Prior art keywords
- tire
- air pressure
- microwave
- pressure
- measuring device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Measuring Fluid Pressure (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
PURPOSE: To realize a measurement for the tire air pressure while the car is running, by installing a pressure-sensitive device into a tire to respond to the air pressure within the tire and thus makes the microwave reflector rise up.
CONSTITUTION: The pressure-sensitive device 7 which detects the pressure reduction down to the air pressure set previously is installed into the tire 4, along with the microwave reflector 5 which is made to rise up by the detector 7. At the same time, the microwave oscillator 1 and the receiver 2 are provided outside the tire 4. Then the microwave is transmitted to detect the presence or absence of the reflected wave, thus detecting the state of the air pressure within the tire. And if the reflected wave of the transmitted microwave is detected, a reduction of air pressure within the tire can be decided.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13321079A JPS5657929A (en) | 1979-10-16 | 1979-10-16 | Tire air pressure measuring device using microwave |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13321079A JPS5657929A (en) | 1979-10-16 | 1979-10-16 | Tire air pressure measuring device using microwave |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5657929A true JPS5657929A (en) | 1981-05-20 |
Family
ID=15099296
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13321079A Pending JPS5657929A (en) | 1979-10-16 | 1979-10-16 | Tire air pressure measuring device using microwave |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5657929A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6017333A (en) * | 1983-07-08 | 1985-01-29 | New Japan Radio Co Ltd | Device for measuring inner pressure of tire |
-
1979
- 1979-10-16 JP JP13321079A patent/JPS5657929A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6017333A (en) * | 1983-07-08 | 1985-01-29 | New Japan Radio Co Ltd | Device for measuring inner pressure of tire |
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