JPS5814131U - object detection device - Google Patents
object detection deviceInfo
- Publication number
- JPS5814131U JPS5814131U JP10665081U JP10665081U JPS5814131U JP S5814131 U JPS5814131 U JP S5814131U JP 10665081 U JP10665081 U JP 10665081U JP 10665081 U JP10665081 U JP 10665081U JP S5814131 U JPS5814131 U JP S5814131U
- Authority
- JP
- Japan
- Prior art keywords
- container
- base
- piezoelectric vibrator
- detection device
- object detection
- 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
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は物体検知装置における圧電振動子取付構造の一
例を示す断面図、第２図は物体検知装置の電気的構成を
示す回路図、第３図乃至第５図はストレスにより圧電振
動子の利得及び位相の周波数特性が乱た状態を示すグラ
フ、第６図は本考案に係る物体検知装置の第１実施例に
おける圧電振動子取付部周辺の構造を示す拡大断面図、
第７図は同底面図、第８図は第１実施例の場合の圧電振
動子の利得及び位相の周波数特性を示すグラフ、第９図
は本考案の第２実施例における拡大断面図、第１０図は
本考案の第３実施例における拡大断面図、第１１図は本
考案の第４実施例における平面図である。
１・・・容器、２．３１・・・支持筒、３・・・圧電振
動子、３０・・・ベース、３２乃至３５・・・ストレス
吸収用円環状凹溝、３６・・・取付用ビス穴、３７・・
・ストレス吸収用円弧状凹溝。
１０［−一■−−７
１
１５２２，５
」−
Ｘ−−９０４，。
相
１
３６５Figure 1 is a cross-sectional view showing an example of a piezoelectric vibrator mounting structure in an object detection device, Figure 2 is a circuit diagram showing the electrical configuration of the object detection device, and Figures 3 to 5 are A graph showing a state in which the frequency characteristics of gain and phase are disturbed; FIG. 6 is an enlarged sectional view showing the structure around the piezoelectric vibrator mounting part in the first embodiment of the object detection device according to the present invention;
FIG. 7 is a bottom view of the same, FIG. 8 is a graph showing the frequency characteristics of the gain and phase of the piezoelectric vibrator in the case of the first embodiment, and FIG. 9 is an enlarged sectional view of the second embodiment of the present invention. FIG. 10 is an enlarged sectional view of the third embodiment of the present invention, and FIG. 11 is a plan view of the fourth embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Container, 2.31... Support tube, 3... Piezoelectric vibrator, 30... Base, 32 to 35... Annular groove for stress absorption, 36... Mounting screw Hole, 37...
- Arc-shaped groove for stress absorption. 10[-1■--7 1 1522,5''-X--904,. Phase 1 365
Claims (1)
スより突出する支持筒にて圧電振動子を支持し、その容
器内の内容物の有無に応じてその圧電振動子の共振状態
が変化することを利用した物体検知装置において、前記
ベースの前記支持筒基部周辺又は取付部周辺にストレス
吸収用凹溝を形成したことを特徴とする物体検知装置。A piezoelectric vibrator is supported by a support tube that is part of the container or protrudes from a base fixed to the container, and the resonance state of the piezoelectric vibrator changes depending on the presence or absence of contents in the container. What is claimed is: 1. An object detecting device utilizing stress absorption, characterized in that a stress absorbing groove is formed around the base of the support tube or around the mounting portion of the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10665081U JPS5814131U (en) | 1981-07-20 | 1981-07-20 | object detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10665081U JPS5814131U (en) | 1981-07-20 | 1981-07-20 | object detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5814131U true JPS5814131U (en) | 1983-01-28 |
Family
ID=29901116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10665081U Pending JPS5814131U (en) | 1981-07-20 | 1981-07-20 | object detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5814131U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01148823U (en) * | 1988-04-06 | 1989-10-16 | ||
| JPH032853U (en) * | 1989-05-30 | 1991-01-11 |
-
1981
- 1981-07-20 JP JP10665081U patent/JPS5814131U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01148823U (en) * | 1988-04-06 | 1989-10-16 | ||
| JPH032853U (en) * | 1989-05-30 | 1991-01-11 |
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