FR2468894B1 - - Google Patents
Info
- Publication number
- FR2468894B1 FR2468894B1 FR8023602A FR8023602A FR2468894B1 FR 2468894 B1 FR2468894 B1 FR 2468894B1 FR 8023602 A FR8023602 A FR 8023602A FR 8023602 A FR8023602 A FR 8023602A FR 2468894 B1 FR2468894 B1 FR 2468894B1
- Authority
- FR
- France
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L23/00—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid
- G01L23/22—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines
- G01L23/221—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines for detecting or indicating knocks in internal combustion engines
- G01L23/222—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines for detecting or indicating knocks in internal combustion engines using piezoelectric devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
- G01H11/06—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means
- G01H11/08—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means using piezoelectric devices
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14373679A JPS5667731A (en) | 1979-11-06 | 1979-11-06 | Knocking sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2468894A1 FR2468894A1 (fr) | 1981-05-08 |
| FR2468894B1 true FR2468894B1 (US07922777-20110412-C00004.png) | 1984-10-12 |
Family
ID=15345810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8023602A Granted FR2468894A1 (fr) | 1979-11-06 | 1980-11-05 | Detecteur de vibrations, par exemple pour moteur |
Country Status (5)
Families Citing this family (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56103345A (en) * | 1980-01-21 | 1981-08-18 | Nippon Soken Inc | Knocking detector for internal combustion engine |
| DE3126676A1 (de) * | 1980-03-07 | 1983-01-20 | Robert Bosch Gmbh, 7000 Stuttgart | Sensor zur erfassung der beim klopfen einer brennkraftmaschine auftretenden schwingungen |
| RO78375A2 (ro) * | 1981-01-20 | 1983-08-03 | Institutul De Cercetare Stiintifica Si Inginerie Tehnologica Pentru Industria Electrotehnice,Ro | Traductor piezolectric |
| JPS57120825A (en) * | 1981-01-21 | 1982-07-28 | Hitachi Ltd | Sensor for knocking |
| US4371804A (en) * | 1981-07-31 | 1983-02-01 | General Motors Corporation | Piezoelectric knock sensor |
| JPS58136732U (ja) * | 1982-03-09 | 1983-09-14 | 日本電子機器株式会社 | ノツキング検出器 |
| US4516428A (en) * | 1982-10-28 | 1985-05-14 | Pan Communications, Inc. | Acceleration vibration detector |
| JPS60253820A (ja) * | 1984-05-30 | 1985-12-14 | Matsushita Electric Ind Co Ltd | 振動検知器 |
| JPS60256017A (ja) * | 1984-06-01 | 1985-12-17 | Matsushita Electric Ind Co Ltd | 振動検知器 |
| DE3445452A1 (de) * | 1984-12-13 | 1986-06-19 | Robert Bosch Gmbh, 7000 Stuttgart | Klopfsensor |
| DE3703946A1 (de) * | 1987-02-09 | 1988-08-18 | Fraunhofer Ges Forschung | Frequenzselektiver schwingungssensor |
| US4727279A (en) * | 1987-04-29 | 1988-02-23 | General Motors Corporation | Piezoelectric knock sensor |
| JPH0543391Y2 (US07922777-20110412-C00004.png) * | 1987-10-01 | 1993-11-01 | ||
| GB8728509D0 (en) * | 1987-12-05 | 1988-01-13 | Rolls Royce Plc | Acoustic emission transducer |
| US4982605A (en) * | 1989-05-17 | 1991-01-08 | Alnor Instrument Company | Air flow monitor and temperature compensating circuit therefor |
| US5009106A (en) * | 1989-07-06 | 1991-04-23 | Kistler Instrumente Ag | Accelerometer with improved shock resistance |
| DE4113784C2 (de) * | 1990-04-27 | 1994-05-11 | Mitsubishi Electric Corp | Schwingungssensor |
| KR930008304B1 (ko) * | 1990-04-27 | 1993-08-27 | 미쯔비시 덴끼 가부시끼가이샤 | 진동 검출기 |
| DE4143402C2 (de) * | 1990-04-27 | 1994-09-15 | Mitsubishi Electric Corp | Schwingungssensor |
| US5090243A (en) * | 1990-06-11 | 1992-02-25 | Sundstrand Data Control, Inc. | Preload system for accelerometer |
| JPH04102029U (ja) * | 1991-02-13 | 1992-09-03 | ユピテル工業株式会社 | 振動センサ |
| JP3135605B2 (ja) * | 1991-06-10 | 2001-02-19 | 株式会社東芝 | 撹拌子 |
| US5400644A (en) * | 1992-09-29 | 1995-03-28 | Motorola, Inc. | Knock detection system |
| US6456927B1 (en) | 1993-03-22 | 2002-09-24 | Motorola, Inc. | Spectral knock detection method and system therefor |
| DE19612013A1 (de) * | 1996-03-15 | 1997-09-18 | Volker Dipl Phys Haenel | Piezoelektrischer Breitbandwandler |
| US6301966B1 (en) * | 1999-03-31 | 2001-10-16 | Honeywell International, Inc. | Clamshell cover accelerometer |
| DE19917372B4 (de) * | 1999-04-16 | 2009-01-02 | Prüftechnik Dieter Busch AG | Meßgerät zum Erfassen der Temperatur und der Schwingungen einer Oberfläche |
| US6779381B2 (en) * | 2001-07-06 | 2004-08-24 | Delphi Technologies, Inc. | Threadless knock sensor |
| JP5652396B2 (ja) * | 2009-06-26 | 2015-01-14 | 株式会社村田製作所 | 圧電発電装置及び無線センサネットワーク装置 |
| SG10202009336PA (en) | 2016-10-13 | 2020-10-29 | South East Water Corp | Vibration sensor for fluid leak detection |
| US10704990B2 (en) * | 2018-03-13 | 2020-07-07 | Aktiebolaget Skf | Spacer and sensor module for detecting a vibrational behavior of a mechanical component including the spacer |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE741195C (de) * | 1938-05-29 | 1943-11-06 | Bmw Flugmotorenbau Ges M B H | Aus einem Beschleunigungsmesser bestehendes Geraet zur mittelbaren Untersuchung der Klopferscheinungen in Verbrennungskraftmaschinen |
| US2722614A (en) * | 1951-08-11 | 1955-11-01 | Gulton Mfg Co | Vibration and shock-responsive device |
| GB1316811A (en) * | 1969-05-22 | 1973-05-16 | Matsushita Electric Ind Co Ltd | Microphone |
| JPS51118984A (en) * | 1975-04-11 | 1976-10-19 | Matsushita Electric Ind Co Ltd | Supersonic ceramic microphone |
| DE2801969C2 (de) * | 1978-01-18 | 1982-11-04 | Robert Bosch Gmbh, 7000 Stuttgart | Sensor für Schwingungen |
| US4283649A (en) * | 1978-09-21 | 1981-08-11 | Murata Manufacturing Co., Ltd. | Piezoelectric ultrasonic transducer with resonator laminate |
| US4254354A (en) * | 1979-07-02 | 1981-03-03 | General Motors Corporation | Interactive piezoelectric knock sensor |
-
1979
- 1979-11-06 JP JP14373679A patent/JPS5667731A/ja active Pending
-
1980
- 1980-10-30 US US06/202,271 patent/US4373378A/en not_active Expired - Lifetime
- 1980-11-04 DE DE3041540A patent/DE3041540C2/de not_active Expired
- 1980-11-05 FR FR8023602A patent/FR2468894A1/fr active Granted
- 1980-11-06 GB GB8035665A patent/GB2063009B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US4373378A (en) | 1983-02-15 |
| DE3041540A1 (de) | 1981-05-21 |
| DE3041540C2 (de) | 1983-01-20 |
| FR2468894A1 (fr) | 1981-05-08 |
| JPS5667731A (en) | 1981-06-08 |
| GB2063009B (en) | 1984-04-26 |
| GB2063009A (en) | 1981-05-28 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |