| Patents for G01L 11 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group or (2,548) |
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| 04/08/1992 | EP0478780A1 Method and device for determining field of pressure of continuous fluid medium on the surface of an object |
| 03/31/1992 | US5099679 Measurement of oxygen and residual pressure of a package |
| 03/03/1992 | US5093569 Tapered optical fiber sensor |
| 02/26/1992 | EP0472243A2 Surface pressure measurement by oxygen quenching of luminescence |
| 02/21/1992 | CA2049258A1 Surface pressure measurement by oxygen quenching of luminescence |
| 02/20/1992 | WO1992002912A1 Sensing apparatus |
| 02/12/1992 | EP0470744A2 Electrochemical force sensor |
| 02/11/1992 | EP0572375A4 Extended measurement capability transmitter having shared overpressure protection means. |
| 02/04/1992 | US5085080 Temperature and pressure measuring technique using the photoacoustic effect and mechanical resonance |
| 01/15/1992 | EP0466623A1 Fiber-optic pressure transducer with temperature compensation |
| 01/02/1992 | DE4018998A1 Faseroptischer drucksensor The fiber optic pressure sensor |
| 12/30/1991 | WO1992000506A1 Optical fibre parameter measuring device |
| 12/30/1991 | CA2064874A1 Optical fibre parameter measuring device |
| 12/26/1991 | WO1991019965A1 Fibre optic pressure sensor |
| 12/11/1991 | EP0460357A2 Device for optical measurement of pressure differences |
| 11/12/1991 | US5065010 Fiber optic measurement system having a reference conductor for controlling the energy level of the light source |
| 10/31/1991 | WO1991016612A1 Method and device for determining field of presure of continuous fluid medium on the surface of an object |
| 10/08/1991 | US5055692 System for measuring ambient pressure and temperature |
| 10/08/1991 | CA1290166C Optical pressure-sensing system |
| 09/24/1991 | US5051729 Pressure responsive encoder |
| 09/17/1991 | US5048337 Hypsometer having controlled heating, particularly for use in metrological radio-sondes |
| 09/10/1991 | US5047124 Apparatus for feeding gas into a saline solution |
| 09/05/1991 | WO1991013329A1 Pressure sensor |
| 08/28/1991 | EP0443908A1 Method and optical system for measuring the air pressure through laser excitation, particularly in front of an airplane |
| 08/27/1991 | CA1288173C Pressure and temperature sensor |
| 08/22/1991 | WO1991012545A1 Method for producing an index lattice in an optical fibre, and a quasi-distributed sensor array formed therein |
| 08/20/1991 | US5040415 Nonintrusive flow sensing system |
| 08/14/1991 | EP0441693A1 Method for making an index grating in an optical fibre, and quasi-distributed sensor network realized in this fibre |
| 08/14/1991 | EP0441050A2 Method for sensing temperature, pressure and liquid level, and variable ratio fiber optic coupler sensors therefor |
| 07/23/1991 | US5033286 On-line instrument for measuring effective partial pressure of dissolved gases in a liquid |
| 07/03/1991 | EP0435611A2 Versatile, overpressure proof, absolute pressure sensor |
| 06/27/1991 | DE3942343A1 Measuring pressure changes e.g. in ABS ASR braking systems - using relative cheap temp. sensor and software derivation of rate of pressure changes |
| 06/25/1991 | US5026984 Methods for sensing temperature, pressure and liquid level and variable ratio fiber optic coupler sensors therefor |
| 06/25/1991 | CA1285155C Pressure transmitter |
| 06/11/1991 | US5022270 Extended measurement capability transmitter having shared overpressure protection means |
| 05/15/1991 | EP0427662A2 Hypsometer with controlled heating specially for use in meteorologic radio-sondes |
| 04/24/1991 | EP0423903A2 Spectral modulation sensor having an optically resonant structure and optical measuring devices using the same |
| 04/23/1991 | US5010248 Sampling hydrophone |
| 04/17/1991 | EP0422260A1 Method and device for simultaneously determining the oxygen content and the residual pressure in a package |
| 04/11/1991 | DE3932711A1 Sensitive optical shock wave sensor - has e.g. acrylic] light wave guide whose rounded end is described by specific equation and is immersed in liq. where shock wave spreads out |
| 04/02/1991 | US5004912 Fiber-optical pressure sensor with contacting lightwave conductors |
| 03/14/1991 | DE4026998A1 Monitor for continuous pressure ratio between two regions - contains temp. sensors before and after heater in connecting line |
| 03/12/1991 | CA1281243C Method and apparatus for judging inner pressure of filled can |
| 02/05/1991 | US4990769 Continuous cable fiber optical pressure sensor |
| 12/27/1990 | WO1990015975A1 Extended measurement capability transmitter having shared overpressure protection means |
| 12/16/1990 | CA2056391A1 Extended measurement capability transmitter having shared overpressure protection means |
| 10/23/1990 | US4964302 Tactile sensor |
| 10/03/1990 | CN2063232U Measurer for ultramicro-pressure |
| 09/25/1990 | US4958929 Optical fiber sensor |
| 09/25/1990 | US4958520 Digital piezoresistive pressure transducer |
| 08/21/1990 | US4949581 Extended measurement capability transmitter having shared overpressure protection means |
| 08/14/1990 | US4948255 Optical sensing device |
| 08/07/1990 | US4947036 Self-monitoring optical sensor having a ratiometric output signal |
| 08/07/1990 | US4945768 Pressure sensor |
| 07/03/1990 | US4938062 Barometric meter |
| 06/12/1990 | US4933545 Optical pressure-sensing system using optical resonator cavity |
| 06/12/1990 | US4932264 Microballoon tagged materials |
| 06/12/1990 | US4932263 Temperature compensated fiber optic pressure sensor |
| 06/12/1990 | US4932262 Miniature fiber optic pressure sensor |
| 05/01/1990 | US4922095 Method and apparatus for sensing disturbance using fiber-optic polarization rotation |
| 04/25/1990 | EP0365062A1 Optical fibre pressure sensor |
| 04/24/1990 | US4920261 Birefringent optical fiber device for measuring of ambient pressure in a stabilized temperature environment |
| 04/18/1990 | CN2056247U Liquid surface tension meter with high-voltage generating device |
| 04/04/1990 | EP0361588A1 Optical fibre sensor |
| 03/27/1990 | US4911015 Non-electrical monitoring of a physical condition |
| 03/08/1990 | WO1990002322A1 Parameter measurement using refractive index change |
| 02/27/1990 | US4904863 Polarimetric optical fiber pressure sensor |
| 02/20/1990 | CA1265945A1 Fibre optic cable responsive to microbending forces |
| 02/14/1990 | EP0354229A1 Hydrophonic probe. |
| 02/07/1990 | CN2052534U Combined nondestructive testing device for vacuum of tin |
| 02/06/1990 | US4898023 Apparatus for detecting internal pressure of a can |
| 01/30/1990 | US4897542 Optical pressure sensor |
| 01/23/1990 | US4895423 Fabrication technique for low-loss fused taper directional couplers and pressure sensor produced thereby |
| 01/08/1990 | EP0288514A4 Fiber optic sensor apparatus. |
| 12/06/1989 | EP0345188A1 Assembly for the simultaneous detection and measurement of pressure and temperature in a pressurized fluidum |
| 12/05/1989 | US4884450 Sensor device |
| 11/28/1989 | US4883952 Optical birefringment parameter measuring sensor |
| 11/21/1989 | US4882716 Optic fiber hydrophone and antenna associating a series of hydrophones |
| 11/01/1989 | CN2047015U Adapter for testing lubrication agent mechanics sheaving stability |
| 10/17/1989 | US4873989 Fluid flow sensing apparatus for in vivo and industrial applications employing novel optical fiber pressure sensors |
| 09/26/1989 | US4869097 Sonic gas pressure gauge |
| 08/22/1989 | US4858639 Current-pressure transducer, particularly for a vacuum control in automotive vehicles |
| 08/02/1989 | EP0326476A1 Fibre-optical hydrophone, and antenna comprising a series of hydrophones |
| 07/27/1989 | WO1989006512A1 Hydrophonic probe |
| 07/13/1989 | WO1989006350A1 Differential pressure meter |
| 07/06/1989 | DE3821690A1 Device for the measurement of small pressure differences |
| 06/06/1989 | US4837777 Pressure or temperature transducer |
| 05/10/1989 | EP0315497A1 Device for measuring the resulting aerodynamical force acting on a vehicle |
| 05/03/1989 | DE3735516A1 Device for measuring the pressure of a flowable medium |
| 04/25/1989 | CA1253209A1 Waveguide containing communication and sensing systems |
| 04/19/1989 | EP0312332A2 Barometric meter |
| 04/11/1989 | US4820016 Waveguide-containing communications and sensing systems |
| 03/08/1989 | EP0306189A2 Pressure measuring instrument |
| 02/21/1989 | US4807201 Groundwater pressure measurement |
| 02/09/1989 | WO1989001132A1 Heated semiconductor measurement of fluid flow |
| 01/31/1989 | US4800932 Method and apparatus for judging inner pressure of filled can |
| 01/04/1989 | EP0179081B1 Optical pressure sensing apparatus |
| 01/03/1989 | US4795232 Fibre optic cable responsive to microbending forces |
| 12/28/1988 | EP0296189A1 Process for ultrasonic pressure measurement in a liquid using micro-bubbles. |
| 12/28/1988 | CN88101478A Optical sensor |