DE2831938C2 - - Google Patents
Info
- Publication number
- DE2831938C2 DE2831938C2 DE2831938A DE2831938A DE2831938C2 DE 2831938 C2 DE2831938 C2 DE 2831938C2 DE 2831938 A DE2831938 A DE 2831938A DE 2831938 A DE2831938 A DE 2831938A DE 2831938 C2 DE2831938 C2 DE 2831938C2
- Authority
- DE
- Germany
- Prior art keywords
- film
- measuring
- piezoelectric film
- piezoelectric
- transducer
- 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.)
- Expired
Links
- 238000005259 measurement Methods 0.000 claims description 20
- 239000002033 PVDF binder Substances 0.000 claims description 13
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 13
- 230000001133 acceleration Effects 0.000 claims description 7
- 229920000642 polymer Polymers 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 description 15
- 239000012530 fluid Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 230000036316 preload Effects 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 230000002123 temporal effect Effects 0.000 description 3
- 239000004812 Fluorinated ethylene propylene Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 2
- 239000002313 adhesive film Substances 0.000 description 2
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920009441 perflouroethylene propylene Polymers 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 229920002239 polyacrylonitrile Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 229920002620 polyvinyl fluoride Polymers 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 230000004304 visual acuity 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
- F02M65/003—Measuring variation of fuel pressure in high pressure line
-
- 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
- G01L9/0005—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using variations in capacitance
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S310/00—Electrical generator or motor structure
- Y10S310/80—Piezoelectric polymers, e.g. PVDF
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measuring Fluid Pressure (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Testing Of Engines (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0550577A AT375466B (de) | 1977-07-27 | 1977-07-27 | Messwertaufnehmer mit einem piezoelektrischen messelement |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2831938A1 DE2831938A1 (de) | 1979-02-08 |
DE2831938C2 true DE2831938C2 (en, 2012) | 1989-09-28 |
Family
ID=3576529
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19782831938 Granted DE2831938A1 (de) | 1977-07-27 | 1978-07-20 | Messwertaufnehmer mit einem flexiblen messelement zur messung mechanischer groessen |
DE2831939A Expired DE2831939C3 (de) | 1977-07-27 | 1978-07-20 | Meßwertaufnehmer mit einem piezoelektrischen Meßelement |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2831939A Expired DE2831939C3 (de) | 1977-07-27 | 1978-07-20 | Meßwertaufnehmer mit einem piezoelektrischen Meßelement |
Country Status (7)
Country | Link |
---|---|
US (2) | US4216403A (en, 2012) |
JP (1) | JPS5425778A (en, 2012) |
AT (1) | AT375466B (en, 2012) |
CH (2) | CH640346A5 (en, 2012) |
DE (2) | DE2831938A1 (en, 2012) |
FR (1) | FR2399014A1 (en, 2012) |
GB (3) | GB2086584B (en, 2012) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4003552A1 (de) * | 1990-02-06 | 1991-08-08 | Grote & Hartmann | Verfahren und vorrichtung zur kontaktkraftmessung |
DE19732302A1 (de) * | 1997-07-26 | 1999-01-28 | Volkswagen Ag | Kollisions-Sensor-Anordnung für Kraftfahrzeuge |
DE19831622A1 (de) * | 1998-07-15 | 2000-02-24 | Univ Dresden Tech | Verfahren und Vorrichtung zur Charakterisierung von mechanischen Spannungszuständen in flächenhaften Materialien |
DE10044481A1 (de) * | 2000-09-08 | 2001-07-19 | Bosch Gmbh Robert | Schwingungsaufnehmer mit einstückigem Schwingungsaufnahmeelement sowie Verfahren zur Herstellung eines Schwingungsaufnahmeelements |
DE10003009A1 (de) * | 2000-01-19 | 2001-08-16 | Univ Dresden Tech | Verfahren und Vorrichtung zur Charakterisierung von mechanischen Spannungszuständen in flächenhaften Materialien |
DE10023838A1 (de) * | 2000-05-16 | 2001-12-06 | Siemens Ag | Vorrichtung zum Messen einer Wegänderung |
DE19521381C2 (de) * | 1995-06-12 | 2003-04-03 | Hydrotechnik Gmbh | Volumenstrommeßgerät |
DE10156588A1 (de) * | 2001-11-20 | 2003-05-28 | Ksb Ag | Schwingungsmeßgerät |
DE102007041918A1 (de) * | 2007-09-04 | 2009-03-05 | Siemens Ag | Piezoelektrischer Energiewandler mit Doppelmembran |
DE102008024737B3 (de) * | 2008-05-20 | 2010-01-07 | SectorCon Ingenieurgesellschaft für System- und Softwaretechnik mbH | Piezoelektrischer Sensor zur Druckfluktuationsmessung |
Families Citing this family (114)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4304126A (en) * | 1978-10-06 | 1981-12-08 | Edward Yelke | Transducer for fuel injection engine with flexible piezoelectric element |
CS205705B1 (en) * | 1978-11-29 | 1981-05-29 | Blanka Hyanova | Facility for scanning and analysis of emitted accoustic and ultrasound signals in the hollow objects |
DE2927269C2 (de) * | 1979-07-05 | 1982-10-28 | Siemens AG, 1000 Berlin und 8000 München | Piezoelektrisches Antriebselement für Schreibdüsen in Tintenmosaikschreibeinrichtungen |
AT373394B (de) * | 1979-09-07 | 1984-01-10 | List Hans | Messwertaufnehmer zur messung des inneren druckes in rohren |
DE3010168C2 (de) * | 1980-03-17 | 1982-05-27 | Siemens AG, 1000 Berlin und 8000 München | Elektrischer Dehnungsaufnehmer |
AT374007B (de) * | 1980-03-19 | 1984-03-12 | List Hans | Messwertaufnehmer zur messung mechanischer groessen an hohlkoerpern |
US4296635A (en) * | 1980-06-11 | 1981-10-27 | Hans List | Transducer device for measuring the internal pressure in pipes |
JPS57501476A (en, 2012) * | 1980-09-02 | 1982-08-19 | ||
DE3037753A1 (de) * | 1980-10-06 | 1982-05-13 | Siemens AG, 1000 Berlin und 8000 München | Anordnung zur messung des druckverlaufes in zylinderfoermigen hohlkoerpern |
US4425526A (en) | 1981-10-29 | 1984-01-10 | The Perkin-Elmer Corp. | Method of making electrical connections to thin film coatings and the electrical connector formed thereby |
US4542564A (en) * | 1981-10-29 | 1985-09-24 | The Perkin-Elmer Corporation | Method of making electrical connections to thin film coatings |
JPS5943356A (ja) * | 1982-09-06 | 1984-03-10 | Kureha Chem Ind Co Ltd | 超音波探触子 |
GB8325861D0 (en) * | 1983-09-28 | 1983-11-02 | Syrinx Presicion Instr Ltd | Force transducer |
US4499394A (en) * | 1983-10-21 | 1985-02-12 | Koal Jan G | Polymer piezoelectric sensor of animal foot pressure |
JPS60181996U (ja) * | 1984-05-11 | 1985-12-03 | 呉羽化学工業株式会社 | 電極端子取り出し構造体 |
US4536674A (en) * | 1984-06-22 | 1985-08-20 | Schmidt V Hugo | Piezoelectric wind generator |
CH664832A5 (de) * | 1984-08-30 | 1988-03-31 | Barnaulskij Ok B Avtomatiki | Einrichtung zur messung des in rohrleitungen herrschenden drucks von fluessigkeiten, gasen und schuettgut. |
DE3443133C1 (de) * | 1984-11-27 | 1986-02-27 | Dr. Johannes Heidenhain Gmbh, 8225 Traunreut | Messanordnung |
JPS61161446A (ja) * | 1985-01-10 | 1986-07-22 | Terumo Corp | 超音波探触子およびその製造方法 |
ES8704014A1 (es) * | 1985-07-31 | 1987-03-01 | Moles Bernat Jaime | Aparato sensor para deteccion de variaciones bruscas de pre-sion de fluidos en tubos y recipientes |
US4824107A (en) * | 1985-10-10 | 1989-04-25 | French Barry J | Sports scoring device including a piezoelectric transducer |
US4761005A (en) * | 1985-10-10 | 1988-08-02 | Barry J. French | Sports scoring device including a flexible prezoelectric layer resilient layer |
US4883271A (en) * | 1985-10-10 | 1989-11-28 | French Sportech Corporation | Sports impact measuring apparatus |
DE3682378D1 (de) * | 1985-12-20 | 1991-12-12 | Avl Verbrennungskraft Messtech | Messwertaufnehmer mit einem flexiblen piezoelektrischen film als messelement. |
US4734611A (en) * | 1985-12-20 | 1988-03-29 | Siemens Aktiengesellschaft | Ultrasonic sensor |
JPS6363932A (ja) * | 1986-09-04 | 1988-03-22 | Daikin Ind Ltd | 管内圧力変化検知変換器 |
GB8625686D0 (en) * | 1986-10-27 | 1986-11-26 | Ministry Of Agriculture Fisher | Assessing processing strains |
DE3639455A1 (de) * | 1986-11-18 | 1988-05-26 | Heinrich Prof Dr Ing Reents | Verfahren mit den dazu gehoerigen vorrichtungen zur vollelektronischen fuellstandsmessung von fluessigkeiten und gasen mit hilfe flexibler und flaechiger, druckaufnehmender sensoren mit peripherie im tank |
US4731556A (en) * | 1987-01-09 | 1988-03-15 | Tello Adams | Electronic bubble detector apparatus |
WO1988005606A1 (en) * | 1987-01-14 | 1988-07-28 | Advanced Medical Technologies, Inc. | Non-elastic piezoelectric transducer |
DE3703630A1 (de) * | 1987-02-06 | 1988-08-18 | Bosch Gmbh Robert | Beschleunigungsaufnehmer |
DE3704870C1 (de) * | 1987-02-16 | 1988-04-28 | Peter Seitz | Vorrichtung zur Messung der flaechigen Verteilung von Druckkraeften |
US4771204A (en) * | 1987-07-30 | 1988-09-13 | Kiwi Coders Corporation | Sealing method and means for fluid control device |
US4924131A (en) * | 1987-10-14 | 1990-05-08 | Fujikura Ltd. | Piezo-electric acceleration sensor |
DE8804698U1 (de) * | 1988-04-09 | 1988-06-01 | Labionics Ag, Niederurnen | Durchflußmeßvorrichtung für Fluide |
WO1989010166A1 (en) * | 1988-04-18 | 1989-11-02 | Impulse Sports Training Systems | Sports impact measuring apparatus |
DE3839344A1 (de) * | 1988-11-22 | 1990-05-23 | Dornier Gmbh | Beschleunigungsaufnehmender sensor |
US5099702A (en) * | 1988-12-30 | 1992-03-31 | French Sportech Corp. | Perimeter mounted polymeric piezoelectric transducer pad |
JPH02203230A (ja) * | 1989-01-31 | 1990-08-13 | Daikin Ind Ltd | 管内圧力変化検知変換器 |
US5448232A (en) * | 1989-05-03 | 1995-09-05 | Mitron Systems Corporation | Roadway sensors and method of installing same |
US5701646A (en) * | 1990-02-02 | 1997-12-30 | Isco, Inc. | Method of making a sensor |
US5125801A (en) * | 1990-02-02 | 1992-06-30 | Isco, Inc. | Pumping system |
US5500635A (en) * | 1990-02-20 | 1996-03-19 | Mott; Jonathan C. | Products incorporating piezoelectric material |
DE4011314A1 (de) * | 1990-04-07 | 1991-10-10 | Hottinger Messtechnik Baldwin | Dehnungsmessstreifen und messgroessenaufnehmer mit derartigen dehnungsmessstreifen |
GB2246629A (en) * | 1990-07-26 | 1992-02-05 | Secr Defence | Measuring fluid-borne vibrations in pipes |
DE4106040C2 (de) * | 1991-02-22 | 1994-12-22 | Nieke Elektroapparate Gmbh Ber | Verfahren und Vorrichtung zum Bestimmen der Geschwindigkeit von Geschossen |
GB2256111B (en) * | 1991-04-11 | 1995-02-01 | Univ Southampton | Distributed sensors for active vibration control |
US5218197A (en) * | 1991-05-20 | 1993-06-08 | The United States Of America As Represented By The Secretary Of The Navy | Method and apparatus for the non-invasive measurement of pressure inside pipes using a fiber optic interferometer sensor |
DE4129701C2 (de) * | 1991-09-06 | 1994-07-28 | Halil Ulusar Dr Akbay | Meßverfahren zur Messung von mechanischen Spannungen und Meßwertaufnehmer zur Durchführung des Verfahrens |
US5235472A (en) * | 1991-10-18 | 1993-08-10 | Seagate Technology, Inc. | Apparatus for sensing operating shock on a disk drive |
AU3421593A (en) * | 1991-12-23 | 1993-07-28 | Elf Atochem North America, Inc. | Multi-mode accelerometer |
US5554907A (en) * | 1992-05-08 | 1996-09-10 | Mitron Systems Corporation | Vehicle speed measurement apparatus |
CH687648A5 (de) * | 1992-08-12 | 1997-01-15 | Schlopfer Messtechnik Ag | Aufnehmer zur Dehnungsmessung. |
US5321332A (en) * | 1992-11-12 | 1994-06-14 | The Whitaker Corporation | Wideband ultrasonic transducer |
US5811680A (en) * | 1993-06-13 | 1998-09-22 | Technion Research & Development Foundation Ltd. | Method and apparatus for testing the quality of fruit |
GB2282931B (en) * | 1993-10-16 | 1997-11-12 | Atomic Energy Authority Uk | Flexible transducer array support |
US5471192A (en) * | 1994-01-24 | 1995-11-28 | Dash; Glen | Sound producing device stimulated by petting |
US5465614A (en) * | 1994-03-28 | 1995-11-14 | Envirotest Systems Corp. | Apparatus and method for non-intrusive testing of a motor vehicle canister purge system |
US5553503A (en) * | 1994-10-11 | 1996-09-10 | Manometrx Group Ltd | Measurement of fluid pressure such as blood pressure |
FR2725787A1 (fr) * | 1994-10-17 | 1996-04-19 | Coton Jean | Nouveau capteur piezo-electrique et ses applications |
FR2725786A1 (fr) * | 1994-10-17 | 1996-04-19 | Coton Jean | Capteur piezo-electrique et applications a l'automobile |
US5680718A (en) * | 1994-12-20 | 1997-10-28 | First Choice Trading Limited | Illuminable hat |
GB2304812A (en) * | 1995-08-26 | 1997-03-26 | Ford Motor Co | Pressure sensing spark plug |
US6012822A (en) * | 1996-11-26 | 2000-01-11 | Robinson; William J. | Motion activated apparel flasher |
US6278222B1 (en) * | 1998-08-26 | 2001-08-21 | Minolta Co., Ltd. | Piezoelectric element, piezoelectric element manufacturing method and actuator using piezoelectric element |
US6536098B1 (en) | 1998-09-14 | 2003-03-25 | Erming Luo | Method of manufacturing precisely compressed stacks |
ATE266354T1 (de) | 1999-07-29 | 2004-05-15 | Biosyntech Canada Inc | Charakterisierung der kontaktverteilung zwischen zwei beliebigen oberflächen unter verwendung einer elektrodenanordnung |
ATE326682T1 (de) * | 2000-05-03 | 2006-06-15 | Hera Rotterdam Bv | Messwertaufnehmer |
US6834436B2 (en) * | 2001-02-23 | 2004-12-28 | Microstrain, Inc. | Posture and body movement measuring system |
US7233097B2 (en) * | 2001-05-22 | 2007-06-19 | Sri International | Rolled electroactive polymers |
US6771006B2 (en) * | 2002-01-18 | 2004-08-03 | Pegasus Technologies Ltd. | Cylindrical ultrasound transceivers |
EP1576342A2 (en) * | 2002-11-12 | 2005-09-21 | CiDra Corporation | An apparatus having an array of clamp on piezoelectric film sensors for measuring parameters of a process flow within a pipe |
US6981425B2 (en) * | 2002-11-22 | 2006-01-03 | Frederick Engineering, Co. | Dynamic force measuring instrument having a foil belt transducer |
US7882750B2 (en) * | 2003-08-01 | 2011-02-08 | Cidra Corporate Services, Inc. | Method and apparatus for measuring parameters of a fluid flowing within a pipe using a configurable array of sensors |
US7253742B2 (en) * | 2003-08-01 | 2007-08-07 | Cidra Corporation | Method and apparatus for measuring parameters of a fluid flowing within a pipe using a configurable array of sensors |
WO2005015135A2 (en) * | 2003-08-08 | 2005-02-17 | Cidra Corporation | Piezocable based sensor for measuring unsteady pressures inside a pipe |
US7304566B2 (en) | 2003-11-19 | 2007-12-04 | Honda Motor Co., Ltd. | Collision detection sensor for vehicle and collision detection device for vehicle |
US7367239B2 (en) * | 2004-03-23 | 2008-05-06 | Cidra Corporation | Piezocable based sensor for measuring unsteady pressures inside a pipe |
EP1774252A2 (en) * | 2004-06-16 | 2007-04-18 | Quantum Applied Science and Research, Inc. | Ballistic impact detection system |
JP4798424B2 (ja) * | 2005-04-18 | 2011-10-19 | 独立行政法人産業技術総合研究所 | 管内圧力センサ |
US7249525B1 (en) | 2005-06-22 | 2007-07-31 | Cidra Corporation | Apparatus for measuring parameters of a fluid in a lined pipe |
US7503227B2 (en) * | 2005-07-13 | 2009-03-17 | Cidra Corporate Services, Inc | Method and apparatus for measuring parameters of a fluid flow using an array of sensors |
CA2554906C (en) * | 2006-05-10 | 2008-09-02 | Robert Allan Simmons | Method and apparatus for conveying an ultrasonic sensor about an outer peripheral surface of a tube |
JP5602626B2 (ja) | 2007-06-29 | 2014-10-08 | アーティフィシャル マッスル,インク. | 感覚性フィードバック用途のための電気活性ポリマートランスデューサー |
US8346388B1 (en) | 2007-12-15 | 2013-01-01 | Jared Michael Tritz | System and method for automated tactile sorting |
US7893599B2 (en) * | 2008-01-29 | 2011-02-22 | Washington State University | Energy converters and associated methods |
US8771204B2 (en) | 2008-12-30 | 2014-07-08 | Masimo Corporation | Acoustic sensor assembly |
EP2239793A1 (de) | 2009-04-11 | 2010-10-13 | Bayer MaterialScience AG | Elektrisch schaltbarer Polymerfilmaufbau und dessen Verwendung |
US8790268B2 (en) | 2009-10-15 | 2014-07-29 | Masimo Corporation | Bidirectional physiological information display |
US10463340B2 (en) | 2009-10-15 | 2019-11-05 | Masimo Corporation | Acoustic respiratory monitoring systems and methods |
US8702627B2 (en) | 2009-10-15 | 2014-04-22 | Masimo Corporation | Acoustic respiratory monitoring sensor having multiple sensing elements |
WO2011047216A2 (en) | 2009-10-15 | 2011-04-21 | Masimo Corporation | Physiological acoustic monitoring system |
US8870792B2 (en) | 2009-10-15 | 2014-10-28 | Masimo Corporation | Physiological acoustic monitoring system |
US9326712B1 (en) | 2010-06-02 | 2016-05-03 | Masimo Corporation | Opticoustic sensor |
US9618481B2 (en) * | 2010-11-05 | 2017-04-11 | National Research Council Of Canada | Ultrasonic transducer assembly and system for monitoring structural integrity |
KR20140008416A (ko) | 2011-03-01 | 2014-01-21 | 바이엘 인텔렉쳐 프로퍼티 게엠베하 | 변형가능한 중합체 장치 및 필름을 제조하기 위한 자동화 제조 방법 |
KR20140019801A (ko) | 2011-03-22 | 2014-02-17 | 바이엘 인텔렉쳐 프로퍼티 게엠베하 | 전기활성 중합체 작동기 렌티큘라 시스템 |
US9192351B1 (en) | 2011-07-22 | 2015-11-24 | Masimo Corporation | Acoustic respiratory monitoring sensor with probe-off detection |
WO2013142552A1 (en) | 2012-03-21 | 2013-09-26 | Bayer Materialscience Ag | Roll-to-roll manufacturing processes for producing self-healing electroactive polymer devices |
US9761790B2 (en) | 2012-06-18 | 2017-09-12 | Parker-Hannifin Corporation | Stretch frame for stretching process |
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- 1978-07-20 DE DE2831939A patent/DE2831939C3/de not_active Expired
- 1978-07-21 CH CH793378A patent/CH640346A5/de not_active IP Right Cessation
- 1978-07-21 CH CH793178A patent/CH637214A5/de not_active IP Right Cessation
- 1978-07-25 US US05/927,844 patent/US4216403A/en not_active Expired - Lifetime
- 1978-07-27 GB GB8130412A patent/GB2086584B/en not_active Expired
- 1978-07-27 JP JP9246478A patent/JPS5425778A/ja active Granted
- 1978-07-27 GB GB787831361A patent/GB2001765B/en not_active Expired
- 1978-07-27 FR FR7822306A patent/FR2399014A1/fr active Granted
- 1978-07-27 GB GB8122301A patent/GB2086582B/en not_active Expired
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Cited By (14)
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DE4003552A1 (de) * | 1990-02-06 | 1991-08-08 | Grote & Hartmann | Verfahren und vorrichtung zur kontaktkraftmessung |
DE19521381C2 (de) * | 1995-06-12 | 2003-04-03 | Hydrotechnik Gmbh | Volumenstrommeßgerät |
DE19732302A1 (de) * | 1997-07-26 | 1999-01-28 | Volkswagen Ag | Kollisions-Sensor-Anordnung für Kraftfahrzeuge |
DE19732302B4 (de) * | 1997-07-26 | 2006-12-28 | Volkswagen Ag | Zierleiste und Stoßfänger mit Kollisions-Sensor-Anordnung für Kraftfahrzeuge |
DE19831622B4 (de) * | 1998-07-15 | 2004-03-18 | Technische Universität Dresden | Verfahren zur Charakterisierung von mechanischen Spannungszuständen in flächenhaften Materialien und Vorrichtung zur Durchführung des Verfahrens |
DE19831622A1 (de) * | 1998-07-15 | 2000-02-24 | Univ Dresden Tech | Verfahren und Vorrichtung zur Charakterisierung von mechanischen Spannungszuständen in flächenhaften Materialien |
DE10003009A1 (de) * | 2000-01-19 | 2001-08-16 | Univ Dresden Tech | Verfahren und Vorrichtung zur Charakterisierung von mechanischen Spannungszuständen in flächenhaften Materialien |
DE10003009B4 (de) * | 2000-01-19 | 2005-03-31 | Technische Universität Dresden | Messvorrichtung zur Charakterisierung von mechanischen Spannungszuständen in flächenhaften Materialien |
DE10023838C2 (de) * | 2000-05-16 | 2002-11-28 | Siemens Ag | Vorrichtung zum Messen einer Wegänderung zwischen Abschnitten eines Bauteils und Verwendung dieser Vorrichtung |
DE10023838A1 (de) * | 2000-05-16 | 2001-12-06 | Siemens Ag | Vorrichtung zum Messen einer Wegänderung |
DE10044481A1 (de) * | 2000-09-08 | 2001-07-19 | Bosch Gmbh Robert | Schwingungsaufnehmer mit einstückigem Schwingungsaufnahmeelement sowie Verfahren zur Herstellung eines Schwingungsaufnahmeelements |
DE10156588A1 (de) * | 2001-11-20 | 2003-05-28 | Ksb Ag | Schwingungsmeßgerät |
DE102007041918A1 (de) * | 2007-09-04 | 2009-03-05 | Siemens Ag | Piezoelektrischer Energiewandler mit Doppelmembran |
DE102008024737B3 (de) * | 2008-05-20 | 2010-01-07 | SectorCon Ingenieurgesellschaft für System- und Softwaretechnik mbH | Piezoelektrischer Sensor zur Druckfluktuationsmessung |
Also Published As
Publication number | Publication date |
---|---|
DE2831939B2 (de) | 1980-10-16 |
JPS5425778A (en) | 1979-02-26 |
US4413202A (en) | 1983-11-01 |
FR2399014A1 (fr) | 1979-02-23 |
JPS6136166B2 (en, 2012) | 1986-08-16 |
GB2086584A (en) | 1982-05-12 |
GB2001765A (en) | 1979-02-07 |
GB2001765B (en) | 1982-10-20 |
GB2086582B (en) | 1982-12-22 |
FR2399014B1 (en, 2012) | 1982-10-22 |
CH637214A5 (de) | 1983-07-15 |
CH640346A5 (de) | 1983-12-30 |
DE2831939C3 (de) | 1981-09-17 |
GB2086584B (en) | 1982-10-20 |
DE2831939A1 (de) | 1979-02-01 |
ATA550577A (de) | 1983-12-15 |
GB2086582A (en) | 1982-05-12 |
DE2831938A1 (de) | 1979-02-08 |
AT375466B (de) | 1984-08-10 |
US4216403A (en) | 1980-08-05 |
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