JPS62214328A - Hydrostatic detector and measuring method of fluid - Google Patents
Hydrostatic detector and measuring method of fluidInfo
- Publication number
- JPS62214328A JPS62214328A JP62049871A JP4987187A JPS62214328A JP S62214328 A JPS62214328 A JP S62214328A JP 62049871 A JP62049871 A JP 62049871A JP 4987187 A JP4987187 A JP 4987187A JP S62214328 A JPS62214328 A JP S62214328A
- Authority
- JP
- Japan
- Prior art keywords
- fluid
- static pressure
- thick film
- measuring method
- support member
- 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
- 239000012530 fluid Substances 0.000 title claims description 13
- 238000000034 method Methods 0.000 title claims description 5
- 230000002706 hydrostatic effect Effects 0.000 title 1
- 230000003068 static effect Effects 0.000 claims description 11
- 238000001514 detection method Methods 0.000 description 7
- 239000002283 diesel fuel Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/0001—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means
- G01L9/0002—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using variations in ohmic resistance
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C10/00—Adjustable resistors
- H01C10/10—Adjustable resistors adjustable by mechanical pressure or force
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
【発明の詳細な説明】
（産業上の利用分野）
本発明は流体の静圧検出装置および測定方法に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a fluid static pressure detection device and a measuring method.
（発明の構成）
本発明の検出装置は流体中に浸漬されかつ少な該感知索
子が流体の静圧に応じて変化する電気的特性を有する厚
膜抵抗体から構成されるものである。(Structure of the Invention) The detection device of the present invention is immersed in a fluid, and the sensing probe is composed of a thick film resistor having electrical characteristics that change depending on the static pressure of the fluid.
また、本発明の測定方法は環境内に少なくとも１つの厚
膜抵抗体を担う支持部材を挿入し、該厚膜抵抗体の電気
抵抗を測定することを特徴とするものである。Further, the measuring method of the present invention is characterized in that a support member carrying at least one thick film resistor is inserted into the environment, and the electrical resistance of the thick film resistor is measured.
（実施例）
以下に本発明の好ましい実施例を添付図面とともに説明
するが、本発明は該実施例に限定されるものではない。(Example) Preferred embodiments of the present invention will be described below with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
第１図において、全体的に符号ｌを付して示す容器は公
知の方法で端部にシーリング状に拘束された上蓋体３を
有するカップ形状本体２から成る。The container, generally designated l in FIG. 1, consists of a cup-shaped body 2 with a top 3 sealed in a sealing manner at the end in a known manner.
第１図中、符号４を付して示す液体が容器ｌを充満する
。A liquid, designated 4 in FIG. 1, fills the container l.
支持部材６は容器Ｉ内に浸漬されており、例えば、セラ
ミック材料の四辺形状仮によって構成される。第２図に
おいてさらに明瞭に示すように、持部材上に付着されか
つ金属被覆物から成る末端検電素子７および８を具備し
ている。これらの検電素子７および８はまた厚膜技術に
よって付着されたものである。The support member 6 is immersed in the container I and is constituted, for example, by a quadrilateral section of ceramic material. As shown more clearly in FIG. 2, it is provided with end voltage detecting elements 7 and 8 which are deposited on the carrier and consist of metal coatings. These electroscopic elements 7 and 8 are also deposited by thick film technology.
厚膜抵抗体Ｒから成る検電素子７および８は接続導線９
および１０を介して導電性バー（端子）ｌＩおよび１２
に接続され、該端子１１および１２は容器ｌの蓋体３の
穴１３および１４にシーリング状に拘束される。抵抗体
Ｒは端子１１および１２を介して電気測定回路、例えば
ホイートストンブリッジに接続される。該ホイートスト
ンブリッジによって電気抵抗を測定することが可能であ
る。Voltage detecting elements 7 and 8 consisting of thick film resistors R are connected to connecting conductors 9
and 10 through conductive bars (terminals) lI and 12
The terminals 11 and 12 are sealed in the holes 13 and 14 of the lid 3 of the container l. The resistor R is connected via terminals 11 and 12 to an electrical measuring circuit, for example a Wheatstone bridge. The Wheatstone bridge makes it possible to measure electrical resistance.
本発明の装置において、驚くべきことに、厚膜抵抗体の
電気抵抗は当該抵抗体が浸漬される流体の静圧に応じた
良好な変化係数を有することを示すことができる。特に
、実施試験から、流体の静圧のｌＯＯバールの変化に対
し０．３％程度の抵抗変化を呈することが証明された。In the device according to the invention, it can be surprisingly shown that the electrical resistance of the thick film resistor has a good coefficient of variation as a function of the static pressure of the fluid in which it is immersed. In particular, practical tests have shown that it exhibits a resistance change of the order of 0.3% for a change in fluid static pressure of 100 bar.
すなわち、静圧１バールの変化に対し数オームの抵抗変
化を得ることができる。That is, a change in resistance of several ohms can be obtained for a change in static pressure of 1 bar.
本発明の検出装置は好ましくは高圧、例えば１０００バ
ールオーダーでの液圧流体の静圧を測定するために用い
られろ。該装置は例えばディーゼルエンジンのポンプの
送り出し部分のディーゼル燃料の静圧を監視するために
用いられる。公知のディーゼル燃料の静圧は約２００バ
ールに達する。The detection device of the invention is preferably used for measuring the static pressure of a hydraulic fluid at high pressures, for example on the order of 1000 bar. The device is used, for example, to monitor the static pressure of diesel fuel in the delivery section of the pump of a diesel engine. The static pressure of known diesel fuels amounts to approximately 200 bar.
カップ形状本体２内での支持部材６の位置は当該測定に
関して重要な事項ではないが、公知の方法によって支持
部材はカップ形状本体２に固着させるのが好ましい。Although the position of the support member 6 within the cup-shaped body 2 is not critical for the measurement in question, it is preferred that the support member is fixed to the cup-shaped body 2 by known methods.
測定感度は同一支持部材に設けた複数の厚膜抵抗体を用
いることによって増大させることができる。Measurement sensitivity can be increased by using multiple thick film resistors on the same support member.
本発明の主旨と同じであれば、実施例の形態およびその
詳細は本発明の範囲から逸脱しない゛限り、それに限定
されることなく図示した実施例に関し種々に変形し得る
。As long as the gist of the present invention remains the same, the form and details of the embodiments may be modified in various ways with respect to the illustrated embodiments without being limited thereto, without departing from the scope of the present invention.
第１図は本発明の検出装置を具備した、加圧液圧流体を
充填した容器の断面図であり、第２図は本発明の検出装
置の部分斜視図である。
１・・・検出装置、２・・・カップ形状本体、３・・・
蓋体、４・・・流体、６・・・支持部材、７および８・
・・検電素子、
９および１０・・・導線、
＋１および１２・・・導電性バー（端子）、Ｒ・・・厚
膜抵抗体。
特許出願人 マレリ・オートロ二カ・ソシェタ・ベル・
アヂオニ
代 理 人 弁理士 青 山 葆 はか１名Ｐ１６
．１
口θ、２FIG. 1 is a sectional view of a container filled with pressurized hydraulic fluid equipped with a detection device of the invention, and FIG. 2 is a partial perspective view of the detection device of the invention. 1...Detection device, 2...Cup-shaped main body, 3...
Lid body, 4... Fluid, 6... Support member, 7 and 8.
...Electric detection element, 9 and 10... Conductive wire, +1 and 12... Conductive bar (terminal), R... Thick film resistor. Patent applicant: Marelli Autoronica Socheta Belle
Adioni representative Patent attorney Haka Aoyama 1 person P16
．． 1 mouth θ, 2
Claims (2)
を担う支持部材から成り、該感知索子が流体の静圧に応
じて変化する電気的特性を有する厚膜抵抗体から構成さ
れることを特徴とする流体の静圧を電気的に検出する装
置。(1) It consists of a support member immersed in a fluid and carrying at least one sensing element, and the sensing cord is composed of a thick film resistor having electrical characteristics that change depending on the static pressure of the fluid. A device that electrically detects the static pressure of a fluid.
部材を挿入し、 上記厚膜抵抗体の電気抵抗を測定することを特徴とする
環境内の流体の静圧測定方法。(2) A method for measuring static pressure of a fluid in an environment, which comprises inserting a support member carrying at least one thick film resistor into the environment and measuring the electrical resistance of the thick film resistor.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT67189/86A IT1203547B (en) | 1986-03-10 | 1986-03-10 | DEVICE AND PROCEDURE FOR MEASURING THE STATIC PRESSURE OF A FLUID |
| IT67189-A/86 | 1986-03-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62214328A true JPS62214328A (en) | 1987-09-21 |
Family
ID=11300332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62049871A Pending JPS62214328A (en) | 1986-03-10 | 1987-03-04 | Hydrostatic detector and measuring method of fluid |
Country Status (11)
| Country | Link |
|---|---|
| JP (1) | JPS62214328A (en) |
| BE (1) | BE1000714A3 (en) |
| BR (1) | BR8701487A (en) |
| CH (1) | CH669260A5 (en) |
| DE (1) | DE3707078A1 (en) |
| ES (1) | ES2004898A6 (en) |
| FR (1) | FR2595468A1 (en) |
| GB (1) | GB2187888A (en) |
| IT (1) | IT1203547B (en) |
| NL (1) | NL8700570A (en) |
| PT (1) | PT84430B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018151203A (en) * | 2017-03-10 | 2018-09-27 | 公益財団法人電磁材料研究所 | Pressure sensor |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7093495B2 (en) * | 2003-07-28 | 2006-08-22 | Cts Corporation | Pressure sensor |
| US6997059B2 (en) | 2003-10-07 | 2006-02-14 | Cts Corporation | Pressure sensor |
| US7240558B2 (en) | 2003-11-19 | 2007-07-10 | Cts Corporation | Pressure sensor |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB981793A (en) * | 1960-06-20 | 1965-01-27 | Coal Industry Patents Ltd | Improvements in or relating to means for ascertaining fluid pressure |
| CA977464A (en) * | 1972-01-31 | 1975-11-04 | Bailey Meter Company (The) | Integrated single crystal pressure transducer |
| US4311980A (en) * | 1978-10-12 | 1982-01-19 | Fabrica Italiana Magneti Marelli, S.P.A. | Device for pressure measurement using a resistor strain gauge |
| DE3125640A1 (en) * | 1981-06-30 | 1983-01-13 | Robert Bosch Gmbh, 7000 Stuttgart | SENSOR |
| IT1153144B (en) * | 1982-07-30 | 1987-01-14 | Cise Spa | PERFECTED TRANSDUCER FOR MEASURING THE PRESSURE OF A FLUID, IN PARTICULAR AN AGGRESSIVE AND HIGH TEMPERATURE FLUID |
| DE3332880A1 (en) * | 1983-09-12 | 1985-03-28 | Robert Bosch Gmbh, 7000 Stuttgart | SENSOR |
-
1986
- 1986-03-10 IT IT67189/86A patent/IT1203547B/en active
-
1987
- 1987-02-24 CH CH690/87A patent/CH669260A5/en not_active IP Right Cessation
- 1987-02-25 GB GB08704381A patent/GB2187888A/en not_active Withdrawn
- 1987-03-04 JP JP62049871A patent/JPS62214328A/en active Pending
- 1987-03-05 DE DE19873707078 patent/DE3707078A1/en not_active Withdrawn
- 1987-03-06 FR FR8703077A patent/FR2595468A1/en active Pending
- 1987-03-09 ES ES8700638A patent/ES2004898A6/en not_active Expired
- 1987-03-09 BE BE8700222A patent/BE1000714A3/en not_active IP Right Cessation
- 1987-03-09 PT PT84430A patent/PT84430B/en unknown
- 1987-03-10 BR BR8701487A patent/BR8701487A/en unknown
- 1987-03-10 NL NL8700570A patent/NL8700570A/en not_active Application Discontinuation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018151203A (en) * | 2017-03-10 | 2018-09-27 | 公益財団法人電磁材料研究所 | Pressure sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| NL8700570A (en) | 1987-10-01 |
| PT84430A (en) | 1987-04-01 |
| GB2187888A (en) | 1987-09-16 |
| IT1203547B (en) | 1989-02-15 |
| ES2004898A6 (en) | 1989-02-16 |
| FR2595468A1 (en) | 1987-09-11 |
| IT8667189A0 (en) | 1986-03-10 |
| PT84430B (en) | 1989-03-22 |
| DE3707078A1 (en) | 1987-09-17 |
| BE1000714A3 (en) | 1989-03-21 |
| CH669260A5 (en) | 1989-02-28 |
| GB8704381D0 (en) | 1987-04-01 |
| BR8701487A (en) | 1988-01-05 |
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