JPH021993U - - Google Patents
Info
- Publication number
- JPH021993U JPH021993U JP7889088U JP7889088U JPH021993U JP H021993 U JPH021993 U JP H021993U JP 7889088 U JP7889088 U JP 7889088U JP 7889088 U JP7889088 U JP 7889088U JP H021993 U JPH021993 U JP H021993U
- Authority
- JP
- Japan
- Prior art keywords
- reflecting mirror
- focal point
- mirror
- attached
- utility
- 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.)
- Granted
Links
- 238000005259 measurement Methods 0.000 description 1
Landscapes
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
- Aerials With Secondary Devices (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Description
図はこの考案の一実施例を示す斜視図である。
１……マイクロホン、２……反射鏡、３……光
発生器、４……把手、５……測定対象、６……焦
点（出力光交差位置）。
The figure is a perspective view showing an embodiment of this invention. 1...Microphone, 2...Reflector, 3...Light generator, 4...Handle, 5...Measurement object, 6...Focal point (output light intersection position).
Claims (1)
れたセンサと、 出力光が反射鏡の他方の焦点で交差する状態で
反射鏡に取り付けられた複数個の光発生器とを有
することを特徴とする指向性受波器。[Claims for Utility Model Registration] A reflecting mirror having a spheroidal surface, a sensor attached to the focal point of the reflecting mirror on the side closer to the mirror surface, and a reflecting mirror in which output light intersects at the other focal point of the reflecting mirror. and a plurality of light generators attached to the directional wave receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7889088U JPH0635596Y2 (en) | 1988-06-16 | 1988-06-16 | Directional receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7889088U JPH0635596Y2 (en) | 1988-06-16 | 1988-06-16 | Directional receiver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH021993U true JPH021993U (en) | 1990-01-09 |
| JPH0635596Y2 JPH0635596Y2 (en) | 1994-09-14 |
Family
ID=31303783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7889088U Expired - Lifetime JPH0635596Y2 (en) | 1988-06-16 | 1988-06-16 | Directional receiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0635596Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004045314A (en) * | 2002-07-15 | 2004-02-12 | Railway Technical Res Inst | Sound collecting device and sonic wave analyzing system |
| JP2006153547A (en) * | 2004-11-26 | 2006-06-15 | Railway Technical Res Inst | Axle bearing monitoring system for rolling stock by axle box sound measurement and its monitoring method |
-
1988
- 1988-06-16 JP JP7889088U patent/JPH0635596Y2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004045314A (en) * | 2002-07-15 | 2004-02-12 | Railway Technical Res Inst | Sound collecting device and sonic wave analyzing system |
| JP2006153547A (en) * | 2004-11-26 | 2006-06-15 | Railway Technical Res Inst | Axle bearing monitoring system for rolling stock by axle box sound measurement and its monitoring method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0635596Y2 (en) | 1994-09-14 |