JPS5540967A - Surface acoustic wave unit - Google Patents
Surface acoustic wave unitInfo
- Publication number
- JPS5540967A JPS5540967A JP11433178A JP11433178A JPS5540967A JP S5540967 A JPS5540967 A JP S5540967A JP 11433178 A JP11433178 A JP 11433178A JP 11433178 A JP11433178 A JP 11433178A JP S5540967 A JPS5540967 A JP S5540967A
- Authority
- JP
- Japan
- Prior art keywords
- surface acoustic
- antenna
- terminal unit
- pulse
- acoustic wave
- 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
- Transmission And Conversion Of Sensor Element Output (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Abstract
PURPOSE: To obtain the surface acoustic device which can detect the information apart from a space suitably, by using the surface acoustic wave element providing at least a pair of surface acoustic wave electrodes and the antenna in common use for transmission and reception as the terminal unit for transmitting information.
CONSTITUTION: The electromagnetic waves received from the antenna 5 are converted into surface acoustic waves with the transducers 3a and 3b and propagate toward the arrows A and B on the piezoelectric substrate 2 as shown in Figure. The surface acoustic waves excited after the propagation time of the surface waves between the both are again converted into electric signal and retransmitted from the antenna 5 to air. This unit is used as temperature sensor and used as the terminal unit 6 at the transmission side for information. The fixed station 7 apart from a space opposing to this is provided and RF pulse is transmitted from the antenna 8. Since the RF pulse is returned from the terminal unit 6, it is again received at the fixed station 7 and by measuring the time difference τ between the transmission and reception RF pulse, the temperature providing the terminal unit 6 can be measured.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11433178A JPS5540967A (en) | 1978-09-18 | 1978-09-18 | Surface acoustic wave unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11433178A JPS5540967A (en) | 1978-09-18 | 1978-09-18 | Surface acoustic wave unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5540967A true JPS5540967A (en) | 1980-03-22 |
Family
ID=14635130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11433178A Pending JPS5540967A (en) | 1978-09-18 | 1978-09-18 | Surface acoustic wave unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5540967A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS573051A (en) * | 1980-06-09 | 1982-01-08 | Matsushita Electric Ind Co Ltd | Potential measurement device of electronic copying machine |
| JPS5823425U (en) * | 1981-08-07 | 1983-02-14 | 日本電気株式会社 | Delay line container with surface acoustic wave tap |
| US5081075A (en) * | 1987-05-12 | 1992-01-14 | At&T Laboratories | Method of producing a superconductive body, and apparatus and systems comprising the body |
| US6813928B2 (en) * | 2003-01-31 | 2004-11-09 | Hewlett-Packard Development, L.P. | Sensor system and method employing shared transducer elements |
| US6865949B2 (en) | 2003-01-31 | 2005-03-15 | Hewlett-Packard Development Company, L.P. | Transducer-based sensor system |
| US6978656B2 (en) | 2003-10-31 | 2005-12-27 | Hewlett-Packard Development Company, L.P. | Transducer-based sensor system and method |
| US7117743B2 (en) | 2003-07-31 | 2006-10-10 | Hewlett-Packard Development Company, L.P. | Multiple-transducer sensor system and method with selective activation and isolation of individual transducers |
| US7135806B2 (en) | 2002-10-31 | 2006-11-14 | Hewlett-Packard Development Company, L.P. | Transducer-based sensor system with multiple drive signal variants |
| CN103471631A (en) * | 2013-04-22 | 2013-12-25 | 江苏声立传感技术有限公司 | Multi-target anti-collision coding method of delay line type SAW (surface acoustic wave) sensor |
| US8764677B2 (en) | 2003-12-15 | 2014-07-01 | Imperial College Innovations Ltd. | Implantable surface acoustic wave devices for long term clinical monitoring |
-
1978
- 1978-09-18 JP JP11433178A patent/JPS5540967A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS573051A (en) * | 1980-06-09 | 1982-01-08 | Matsushita Electric Ind Co Ltd | Potential measurement device of electronic copying machine |
| JPS5823425U (en) * | 1981-08-07 | 1983-02-14 | 日本電気株式会社 | Delay line container with surface acoustic wave tap |
| US5081075A (en) * | 1987-05-12 | 1992-01-14 | At&T Laboratories | Method of producing a superconductive body, and apparatus and systems comprising the body |
| US7135806B2 (en) | 2002-10-31 | 2006-11-14 | Hewlett-Packard Development Company, L.P. | Transducer-based sensor system with multiple drive signal variants |
| US6813928B2 (en) * | 2003-01-31 | 2004-11-09 | Hewlett-Packard Development, L.P. | Sensor system and method employing shared transducer elements |
| US6865949B2 (en) | 2003-01-31 | 2005-03-15 | Hewlett-Packard Development Company, L.P. | Transducer-based sensor system |
| US7270005B2 (en) | 2003-01-31 | 2007-09-18 | Hewlett-Packard Development Company, L.P. | Transducer-based sensor system |
| US7117743B2 (en) | 2003-07-31 | 2006-10-10 | Hewlett-Packard Development Company, L.P. | Multiple-transducer sensor system and method with selective activation and isolation of individual transducers |
| US6978656B2 (en) | 2003-10-31 | 2005-12-27 | Hewlett-Packard Development Company, L.P. | Transducer-based sensor system and method |
| US8764677B2 (en) | 2003-12-15 | 2014-07-01 | Imperial College Innovations Ltd. | Implantable surface acoustic wave devices for long term clinical monitoring |
| USRE47681E1 (en) | 2003-12-15 | 2019-11-05 | Ip2Ipo Innovations Limited | Implantable surface acoustic wave devices for long term clinical monitoring |
| USRE48970E1 (en) | 2003-12-15 | 2022-03-15 | Ip2Ipo Innovations Limited | Implantable surface acoustic wave devices for long term clinical monitoring |
| CN103471631A (en) * | 2013-04-22 | 2013-12-25 | 江苏声立传感技术有限公司 | Multi-target anti-collision coding method of delay line type SAW (surface acoustic wave) sensor |
| CN103471631B (en) * | 2013-04-22 | 2016-03-30 | 江苏声立传感技术有限公司 | The multiple goal anti-collision coding method of delay line type surface acoustic wave sensor |
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