Patents
Patents for G01K 11 - Measuring temperature based on physical or chemical changes not covered by group , , , or (8,790)
01/1991
01/22/1991US4986671 Three-parameter optical fiber sensor and system
01/22/1991US4986654 Method and apparatus for contactless acquisition of data for the locally resolved determination of the density and temperature in a measurement volume
01/17/1991DE3921929A1 Single-use catheter with thermo-optical temp. sensor - in fluorescent-crystal form glued into side recess and in contact with optical fibre
01/15/1991US4984903 Method of optically and remotely sensing subsurface water temperature
01/10/1991WO1991000632A1 Optical carrier generation using stimulated brillouin scattering
01/10/1991DE3920157A1 Optical arrangement for temp. measurement - contains optically bistable element and state detector supplied by control signal from source
01/10/1991DE3920156A1 Optical system for temp. measurement - includes optically bistable element as measuring probe
01/08/1991US4983810 Heating unit with thermochromic region
12/1990
12/25/1990US4980847 Temperature measuring device
12/19/1990EP0402962A2 Fibre-optic sensor with a fluorescent substance
12/19/1990EP0259412B1 Fibre-optic thermometer or temperature alarm device
12/18/1990US4978962 For measuring the brightness temperature
11/1990
11/27/1990US4973853 Remote subsurface water temperature measuring apparatus with Brillouin scattering
11/20/1990US4972178 Fire monitoring system
11/20/1990US4971068 Blood vessel locating needle assembly with thermochromic indicator
11/13/1990US4970385 Temperature measuring device utilizing birefringence in photoelectric element
11/13/1990US4970315 Thermochromic indicators for structural elements
11/13/1990CA1276078C Distributed sensor and method using coherence multiplexing of fiber-optic interferometric sensors
11/08/1990DE3914599A1 Monitoring indicator for deep freeze products - uses container, e.g. bubble or blister, partially filled with indicating liq. and having walls at least partially transparent
10/1990
10/31/1990EP0394408A1 A gas thermometer
10/31/1990DE4011485A1 Measuring temp. during coupler welding to solar cell - irradiating solar cell with light, measuring idle voltage, and deriving solar cell temp.
10/24/1990EP0267251B1 Method and device for detecting the temperature to which a solid, a liquid or a gas may have been subjected
10/17/1990EP0392897A2 Three-parameter optical fiber sensor and system
10/16/1990US4963415 Thermochromic composition of a chloropolymer and a zinc salt to change color in response to temperature
10/10/1990EP0391782A1 Device to detect the crossing of a temperature-level
10/10/1990EP0192659A4 Distributed, spatially resolving optical fiber strain gauge
10/09/1990US4962319 Remote subsurface water temperature measuring apparatus with Brillouin scattering
10/03/1990CA2013650A1 Device for detecting the exceeding of a temperature threshold
09/1990
09/27/1990DE4006914A1 Thermography of ferromagnetic body, esp. for defectoscopy - using crystal foil magnetically attached to body surface
09/20/1990WO1990010854A1 Thermometer
09/20/1990WO1990010853A1 Filling medium for sensor systems of temperature and position sensors
09/20/1990DE3907683A1 Indikator, verfahren zu seiner herstellung sowie seine verwendung Indicator, process for its preparation and its use
09/19/1990EP0387503A2 Device to measure the fluorescence-diminishing-time of a fluorescent substance
09/12/1990EP0386198A1 Thermochromic mixtures.
09/12/1990CN1009572B Mfg. heat-sensitive indicator for autoclaving
09/11/1990CA1273863A1 Process for temperature indication of a heat recoverable article
09/10/1990WO1990010868A1 Indicator, process for obtaining it and its use
09/10/1990CA2050280A1 Indicator, process for obtaining it and its use
09/07/1990WO1990007699A3 Control monitor for a deep-frozen product or a product whose conservation temperature is to be controlled
09/05/1990CN1009493B Radiation detection imaging system with frequency spreading collinear array
08/1990
08/29/1990EP0384373A1 Method and apparatus for testing liquid fillings in tanks
08/29/1990CN2061280U Reversible thermal sensitive discolour alarm sheet
08/28/1990US4952033 Liquid crystal medical device
08/23/1990DE3904859A1 Electrically operated appliance for preparing hot beverages, such as coffee, tea or the like
08/14/1990US4948958 Remote subsurface water temperature measuring apparatus with brillouin scattering
08/14/1990US4947786 Overheated-axle indicator device
08/01/1990EP0379941A2 Fluorescence material
07/1990
07/31/1990US4945230 Optical measuring device using a spectral modulation sensor having an optically resonant structure
07/25/1990EP0379280A2 Temperature sensors
07/24/1990US4942766 Transducer
07/17/1990US4941425 Method and device for temperature indication of frozen products
07/12/1990WO1990007699A2 Control monitor for a deep-frozen product or a product whose conservation temperature is to be controlled
07/11/1990EP0377549A2 Remote measurement of physical variables with fiber optic systems
07/11/1990EP0168404B1 Fiber optic structure and method for making
06/1990
06/27/1990EP0297118A4 Improved optical fiber temperature sensor.
06/26/1990US4936308 Method and apparatus for measuring acoustic characteristics and temperature
06/13/1990EP0190184B1 Interferometric sensor
06/13/1990EP0116584B1 Thermochromic composition
06/13/1990DE3920840C1 Integrated optical sensor detecting temp. and refraction index changes - has double refractive waveguide in substrate extending along X or Y axis of cut lithium-niobate crystal
06/12/1990US4933658 High temperature fluid sensor
06/12/1990US4933556 Temperature measuring using neutron transmission
06/12/1990US4933525 Microwaveable container having temperature indicating means
06/12/1990CA1270125A1 Time division multiplex optical fibre multipoint measuring device
06/06/1990EP0371816A2 Sensor using optical fibres
06/05/1990US4931420 Temperature history indicator and its manufacturing method
05/1990
05/29/1990US4929091 Temperature sensors
05/22/1990US4928005 Multiple-point temperature sensor using optic fibers
05/22/1990US4926868 Method and apparatus for cardiac hemodynamic monitor
05/16/1990EP0368263A2 Melting indicator to watch over temperature-sensitive products
05/15/1990US4925727 Curable temperature indicating composition
05/09/1990CN1007930B Measurement of working temp. of cutting-tool by means of x-ray method
05/08/1990US4924100 Strain and temperature measurement
05/08/1990US4923308 By measuring oxygen concentrations on the surface of silicon carbides or silicon nitrides
05/03/1990WO1990004766A1 A gas thermometer
04/1990
04/25/1990CN1041651A 温度传感器 Temperature Sensor
04/24/1990US4919983 Thermochromatic infant feeding container
04/19/1990WO1990004156A1 Temperature control device including at least one element of shape memory alloy
04/17/1990US4918492 Michaelson optical fiber interferometer and its application in particular in the measurement of temperatures
04/11/1990EP0363289A1 Temperature control apparatus containing at least one shape memory alloy element
04/11/1990EP0362307A1 Ultrasonic temperature measurement and applications in optical spectroscopy and calorimetry.
04/10/1990US4916211 Thermochromic cross polymerized polyamide-diacetylene compound
04/03/1990US4914288 Optical sensing system with averaging circuit
03/1990
03/27/1990US4911015 Non-electrical monitoring of a physical condition
03/14/1990EP0358342A1 A microwave radiometer
03/08/1990WO1990002322A1 Parameter measurement using refractive index change
03/08/1990WO1990002161A1 Thermochromic mixtures
03/06/1990US4906107 Fibre-optic thermometer or temperature alarm device
02/1990
02/28/1990EP0356273A1 Main and secondary optical sensor device
02/28/1990EP0355177A1 Apparatus for the contactless desintegration of concrements in a living thing body
02/27/1990US4904864 Multi-wavelength time domain reflectometer
02/21/1990EP0298091A4 Optical sensors and optical fibre networks for such sensors.
02/20/1990CA1265938A1 Temperature measurement
02/13/1990US4899671 Method for measuring temperature of hot gases inside a vessel which radiates microwave energy
02/08/1990WO1990001170A1 Device with main and secondary optical sensors
02/07/1990EP0353654A2 Optical system using a luminescent material sensor for measuring very high temperatures
02/06/1990CA1265327A1 Thermochromic composition
01/1990
01/31/1990EP0353189A1 Copper and nickel dihalogenide complexes, process for their preparation and their use
01/31/1990EP0352676A2 Temperature sensor
01/24/1990EP0352203A2 Method and apparatus for simultaneously measuring in a pipe the density, the concentration, the flowing rate, the delivery and the temperature of a liquid or a pasty fluid by ultrasonic transmission
01/23/1990US4895156 Sensor system using fluorometric decay measurements
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