JPS63139539U - - Google Patents
Info
- Publication number
- JPS63139539U JPS63139539U JP3227987U JP3227987U JPS63139539U JP S63139539 U JPS63139539 U JP S63139539U JP 3227987 U JP3227987 U JP 3227987U JP 3227987 U JP3227987 U JP 3227987U JP S63139539 U JPS63139539 U JP S63139539U
- Authority
- JP
- Japan
- Prior art keywords
- pressure sensor
- magnetic force
- diaphragm
- magnetic
- rotating body
- 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
- 239000000696 magnetic material Substances 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 2
- 238000013459 approach Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Measuring Fluid Pressure (AREA)
Description
第１図ないし第３図は本考案の圧力センサーの
構成を説明するための図であつて、第１図は縦断
面図であり、第２図は第１図の―方向の横断
面図であり、第３図は圧力の変化によりダイアフ
ラムが磁石に近づき磁場が強くなつた場合を示す
、第１図と同様な断面図である。第４図は、圧力
センサーの出力波形の変化を説明するグラフであ
る。第５図は、本考案の圧力センサーを自動車用
タイヤに適用した状況を示す断面図である。
１…回転体、２…磁力発生部、２１…非磁性材
料の箱、２２…磁性材料のダイアフラム、２３…
磁路形成片、２４…磁石、３…磁力検出部、Ｐｉ
…内部圧力、Ｐｏ…外部圧力。
Figures 1 to 3 are diagrams for explaining the configuration of the pressure sensor of the present invention, in which Figure 1 is a longitudinal cross-sectional view, and Figure 2 is a cross-sectional view in the - direction of Figure 1. 3 is a sectional view similar to FIG. 1, showing a case where the diaphragm approaches the magnet and the magnetic field becomes stronger due to a change in pressure. FIG. 4 is a graph illustrating changes in the output waveform of the pressure sensor. FIG. 5 is a sectional view showing a situation in which the pressure sensor of the present invention is applied to an automobile tire. DESCRIPTION OF SYMBOLS 1...Rotating body, 2...Magnetic force generating part, 21...Box made of non-magnetic material, 22...Diaphragm made of magnetic material, 23...
Magnetic path forming piece, 24... Magnet, 3... Magnetic force detection unit, Pi
...Internal pressure, Po...External pressure.
Claims (1)
ーであつて、回転体１の壁を貫いて設けた磁力発
生部２と、回転体外部に固定して設けた磁力検出
部３とから成り、磁力発生部２は貫通孔２５を有
する非磁性材料の箱２１、この孔を内側から覆つ
て気密に設けた磁性材料のダイヤフラム２２、こ
のダイアフラムに連続して設けた磁性材料の磁路
形成片２３および磁石２４からなることを特徴と
する圧力センサー。 (2) 磁力検出部３にホール素子を用いた実用新
案登録請求の範囲第１項の圧力センサー。 (3) 自動車用タイヤの空気圧を走行中に測定す
るための、実用新案登録請求の範囲第１項の圧力
センサー。[Scope of Claim for Utility Model Registration] (1) A pressure sensor that measures the pressure inside a rotating body, which includes a magnetic force generating section 2 provided through the wall of the rotating body 1, and a magnetic force generating section 2 provided fixedly on the outside of the rotating body. The magnetic force generating section 2 consists of a box 21 made of a non-magnetic material having a through hole 25, a diaphragm 22 made of a magnetic material provided airtightly covering this hole from the inside, and a diaphragm 22 provided continuously with the diaphragm. A pressure sensor comprising a magnetic path forming piece 23 and a magnet 24 made of a magnetic material. (2) The pressure sensor according to claim 1 of the utility model registration claim, which uses a Hall element in the magnetic force detection section 3. (3) A pressure sensor according to Claim 1 of the Utility Model Registration Claim for measuring the air pressure of an automobile tire while driving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3227987U JPS63139539U (en) | 1987-03-05 | 1987-03-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3227987U JPS63139539U (en) | 1987-03-05 | 1987-03-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63139539U true JPS63139539U (en) | 1988-09-14 |
Family
ID=30838808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3227987U Pending JPS63139539U (en) | 1987-03-05 | 1987-03-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63139539U (en) |
-
1987
- 1987-03-05 JP JP3227987U patent/JPS63139539U/ja active Pending