ZA831944B - Acoustic power meter - Google Patents

Acoustic power meter

Info

Publication number
ZA831944B
ZA831944B ZA831944A ZA831944A ZA831944B ZA 831944 B ZA831944 B ZA 831944B ZA 831944 A ZA831944 A ZA 831944A ZA 831944 A ZA831944 A ZA 831944A ZA 831944 B ZA831944 B ZA 831944B
Authority
ZA
South Africa
Prior art keywords
liquid crystal
cell
condition
birefringence
nematic
Prior art date
Application number
ZA831944A
Other languages
English (en)
Inventor
Jaswinder S Sandhu
Original Assignee
Raj Technology Partnership
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Raj Technology Partnership filed Critical Raj Technology Partnership
Publication of ZA831944B publication Critical patent/ZA831944B/xx

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
    • G01H9/002—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means for representing acoustic field distribution
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02881—Temperature

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Amplifiers (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Liquid Crystal (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
ZA831944A 1982-03-22 1983-03-21 Acoustic power meter ZA831944B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/360,623 US4492107A (en) 1982-03-22 1982-03-22 Acoustic power meter

Publications (1)

Publication Number Publication Date
ZA831944B true ZA831944B (en) 1983-12-28

Family

ID=23418787

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA831944A ZA831944B (en) 1982-03-22 1983-03-21 Acoustic power meter

Country Status (10)

Country Link
US (1) US4492107A (de)
EP (1) EP0089841B1 (de)
JP (1) JPS58213220A (de)
AT (1) ATE24967T1 (de)
AU (1) AU560247B2 (de)
CA (1) CA1204496A (de)
DE (1) DE3369191D1 (de)
IL (1) IL68225A (de)
MX (1) MX153325A (de)
ZA (1) ZA831944B (de)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4506550A (en) * 1981-02-06 1985-03-26 Raj Technology Partnership Non-destructive testing system employing a liquid crystal detector cell
DK158752C (da) * 1984-02-29 1990-12-10 Bang & Olufsen As Fremgangsmaade og kredsloeb til maaling af et elektrisk signalforloebs intensitet
US5139509A (en) * 1989-08-25 1992-08-18 Site Microsurgical Systems, Inc. Phacoemulsification system with handpiece simulator
JP2001517782A (ja) * 1997-09-24 2001-10-09 スリーディーヴィー システムズ リミテッド 音響画像形成システム
US6049411A (en) * 1998-10-14 2000-04-11 Santec Systems Inc Optical imager for birefringent detector acoustic imaging systems
US6321023B1 (en) 2000-06-20 2001-11-20 Honghui Wang Serial imager for birefringent detector acoustic imaging systems
WO2005067817A1 (en) * 2004-01-13 2005-07-28 Remon Medical Technologies Ltd Devices for fixing a sensor in a body lumen
US20060122522A1 (en) * 2004-12-03 2006-06-08 Abhi Chavan Devices and methods for positioning and anchoring implantable sensor devices
US10390714B2 (en) * 2005-01-12 2019-08-27 Remon Medical Technologies, Ltd. Devices for fixing a sensor in a lumen
US8060214B2 (en) * 2006-01-05 2011-11-15 Cardiac Pacemakers, Inc. Implantable medical device with inductive coil configurable for mechanical fixation
US8057399B2 (en) * 2006-09-15 2011-11-15 Cardiac Pacemakers, Inc. Anchor for an implantable sensor
US20080071248A1 (en) * 2006-09-15 2008-03-20 Cardiac Pacemakers, Inc. Delivery stystem for an implantable physiologic sensor
US8676349B2 (en) 2006-09-15 2014-03-18 Cardiac Pacemakers, Inc. Mechanism for releasably engaging an implantable medical device for implantation
US8106674B2 (en) * 2006-10-31 2012-01-31 Lc Vision, Llc Automated liquid crystal analysis instrument
WO2008057720A1 (en) * 2006-11-08 2008-05-15 Cardiac Pacemakers, Inc. Implant for securing a sensor in a vessel
US8204599B2 (en) * 2007-05-02 2012-06-19 Cardiac Pacemakers, Inc. System for anchoring an implantable sensor in a vessel
US20080283066A1 (en) * 2007-05-17 2008-11-20 Cardiac Pacemakers, Inc. Delivery device for implantable sensors
JP2010528814A (ja) 2007-06-14 2010-08-26 カーディアック ペースメイカーズ， インコーポレイテッド 多素子音響再充電システム
JP5362828B2 (ja) * 2008-07-15 2013-12-11 カーディアック ペースメイカーズ， インコーポレイテッド 音響的にイネーブルされる埋め込み型医療デバイス用のインプラント補助装置
US8694129B2 (en) 2009-02-13 2014-04-08 Cardiac Pacemakers, Inc. Deployable sensor platform on the lead system of an implantable device
WO2015103690A1 (en) 2014-01-08 2015-07-16 Smilesonica Inc. Apparatuses and methods for measuring and characterizing ultrasound
US9671277B2 (en) * 2015-01-22 2017-06-06 Jaswinder Singh Sandhu Light imaging system for an acoustic imaging system
US9757574B2 (en) 2015-05-11 2017-09-12 Rainbow Medical Ltd. Dual chamber transvenous pacemaker
GB2586534B (en) * 2019-04-30 2023-05-10 Merck Patent Gmbh Acousto-optical device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3137837A (en) * 1959-12-17 1964-06-16 Gen Motors Corp Ultrasonic power meter
US4035060A (en) * 1973-09-21 1977-07-12 Dainippon Printing Co., Ltd Electro-optic device
DE2742220A1 (de) * 1976-10-12 1978-04-13 Arco Ag Verfahren zur herstellung von abbildungen mechanischer schwingungen, deren frequenz im ultraschallbereich liegt und geraet zur ausfuehrung desselben
CA1112750A (fr) * 1978-10-13 1981-11-17 Jean-Luc Dion Cellule acousto-optique a cristal liquide
US4379408A (en) * 1981-01-12 1983-04-12 Raj Technology Partnership Liquid crystal technique for examining internal structures

Also Published As

Publication number Publication date
MX153325A (es) 1986-09-12
ATE24967T1 (de) 1987-01-15
DE3369191D1 (en) 1987-02-19
IL68225A (en) 1987-12-20
EP0089841A1 (de) 1983-09-28
AU560247B2 (en) 1987-04-02
EP0089841B1 (de) 1987-01-14
CA1204496A (en) 1986-05-13
AU1264383A (en) 1983-09-29
JPS58213220A (ja) 1983-12-12
US4492107A (en) 1985-01-08

Similar Documents

Publication Publication Date Title
AU560247B2 (en) Acoustic power meter
DE3376692D1 (en) Liquid crystal devices
KR840004586A (ko) 액정을 이용한 전기 광학방법과 그 장치
GB2138586B (en) Liquid crystal device
TW376461B (en) Manufacture of liquid crystal display device using polarization storage film as alignment film
KR930018449A (ko) 액정 셀의 평행한 두 유리판 사이의 콜레스테릭 액정을 반대방향 사선을 발생시키지 않고 평면 배향시키는 방법
JPS6463931A (en) Liquid crystal optical modulation device
Manaila et al. Electro-optical and conductive properties of polymer/liquid crystal composite film
FR2373808A1 (fr) Dispositif de filtre optique
CH639811B (de) Fluessigkristall-anzeigezelle.
JPS57133438A (en) Liquid crystal display device
JPS557701A (en) Electro-optic element
JPS5788434A (en) Liquid crystal device, and generating and erasing method of bubble
JPS5788433A (en) Guest-host liquid crystal display device
JPS56125723A (en) Liquid crystal display
JPS5672419A (en) Polarization controller
JPS5738412A (en) Liquid crystal display device
JPS57204516A (en) Liquid crystal display body
JPS5785026A (en) Liquid crystal display device
JPS57210322A (en) Liquid crystal optical device
GB1494013A (en) Liquid crystal display device
Belova Effect of a transverse electric field on the acoustooptic effect in a liquid crystal layer due to a surface acoustic wave
FR2350621A1 (fr) Cellule de cristaux liquides a l'etat nematique
JPS54110859A (en) Light modulation method
KR890008590A (ko) 슈퍼 트위스티드 네마틱 액정표시소자