JPH0221527U - - Google Patents
Info
- Publication number
- JPH0221527U JPH0221527U JP10137488U JP10137488U JPH0221527U JP H0221527 U JPH0221527 U JP H0221527U JP 10137488 U JP10137488 U JP 10137488U JP 10137488 U JP10137488 U JP 10137488U JP H0221527 U JPH0221527 U JP H0221527U
- Authority
- JP
- Japan
- Prior art keywords
- diaphragm
- liquid
- piezoelectric
- level sensor
- contact
- 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
- 239000007788 liquid Substances 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Description
第１図は本考案のレベルセンサーＳの縦断側面
図、第２図イ，ロは、本考案の作動を示す要部の
縦断側面図、第３図は取付け状態の一例を示す縦
断側面図である。
Ｓ……レベルセンサー、１……保護管、３……
振動板、４……圧電素子、２０……保持枠、２１
……通液孔、２２……浮子。
Figure 1 is a vertical side view of the level sensor S of the present invention, Figures 2A and 2B are vertical side views of the main parts showing the operation of the present invention, and Figure 3 is a vertical side view showing an example of the installed state. be. S...Level sensor, 1...Protection tube, 3...
Vibration plate, 4... Piezoelectric element, 20... Holding frame, 21
...Liquid hole, 22...Float.
Claims (1)
振動板を液密状に接合し、かつ振動板の内面に圧
電素子を貼着してバイモルフ型の液体感知部を構
成し、振動板の露出外面が、液体と非接触の時に
圧電素子を振動させて、液体の有無を検出する圧
電式液体レベルセンサーにおいて、 前記保護管の下端に、液体よりも比重の小さい
浮子を昇降可能に係止する開放状保持枠を設け、
保護管先端の浸水時に、該浮子を浮上させて、振
動板の露出外面に当接するようにしたことを特徴
とする圧電式液体レベルセンサー。[Claim for Utility Model Registration] A bimorph type liquid sensing device in which a diaphragm is liquid-tightly joined to the lower end opening of a protection tube with one side exposed to the outside, and a piezoelectric element is attached to the inner surface of the diaphragm. In a piezoelectric liquid level sensor that detects the presence or absence of liquid by vibrating a piezoelectric element when the exposed outer surface of the diaphragm is not in contact with the liquid, the lower end of the protective tube is provided with a An open holding frame is provided to hold a small float so that it can be raised and lowered.
A piezoelectric liquid level sensor characterized in that when the tip of a protection tube is submerged in water, the float floats up and comes into contact with the exposed outer surface of a diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10137488U JPH0221527U (en) | 1988-07-29 | 1988-07-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10137488U JPH0221527U (en) | 1988-07-29 | 1988-07-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0221527U true JPH0221527U (en) | 1990-02-13 |
Family
ID=31330306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10137488U Pending JPH0221527U (en) | 1988-07-29 | 1988-07-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0221527U (en) |
-
1988
- 1988-07-29 JP JP10137488U patent/JPH0221527U/ja active Pending
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