JPS6481U - - Google Patents
Info
- Publication number
- JPS6481U JPS6481U JP9377987U JP9377987U JPS6481U JP S6481 U JPS6481 U JP S6481U JP 9377987 U JP9377987 U JP 9377987U JP 9377987 U JP9377987 U JP 9377987U JP S6481 U JPS6481 U JP S6481U
- Authority
- JP
- Japan
- Prior art keywords
- microphone
- ultrasonic
- front part
- ultrasonic sensor
- transmitting
- 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
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Harvester Elements (AREA)
- Guiding Agricultural Machines (AREA)
- Lifting Devices For Agricultural Implements (AREA)
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Description
第１図は超音波センサ部の拡大説明図、第２図
はコンバインの全体側面図、第３図は扱深さ調節
部の説明図、第４図は扱口部の説明図、第５図は
従来構造例の説明図である。
２６……超音波センサ、２７……発信マイク、
２８，２９……受信マイク、３１……ホーン。
Fig. 1 is an enlarged explanatory view of the ultrasonic sensor section, Fig. 2 is an overall side view of the combine, Fig. 3 is an explanatory view of the handling depth adjustment section, Fig. 4 is an explanatory view of the handling mouth section, and Fig. 5 is an explanatory diagram of an example of a conventional structure. 26... Ultrasonic sensor, 27... Transmission microphone,
28, 29...receiving microphone, 31...horn.
Claims (1)
した超音波センサ構造において、指向性を有する
ホーンを前記受信マイク前面部にのみ設け、前記
発信マイク前面部の指向性を拡大させるように構
成したことを特徴とする超音波センサ。 In an ultrasonic sensor structure in which an ultrasonic transmitting microphone and an ultrasonic receiving microphone are arranged side by side, a directional horn is provided only in the front part of the receiving microphone, so as to expand the directivity of the front part of the transmitting microphone. An ultrasonic sensor characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9377987U JPS6481U (en) | 1987-06-18 | 1987-06-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9377987U JPS6481U (en) | 1987-06-18 | 1987-06-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6481U true JPS6481U (en) | 1989-01-05 |
Family
ID=30956645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9377987U Pending JPS6481U (en) | 1987-06-18 | 1987-06-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6481U (en) |
-
1987
- 1987-06-18 JP JP9377987U patent/JPS6481U/ja active Pending