Miller Jr Park H: Temperature measuring apparatus. Gulf Oil Corporation, July 27, 1971: US3595082 (236 worldwide citation)

A method and apparatus for measuring temperature under difficult environmental conditions, in which the temperature of a fluid between two reflective means is determined acoustically by recording the received reflections and determining their spacing by pulse compression techniques.

Shunsuke Takaki: Temperature sensor for medical application. Minnesota Mining and Manufacturing Company, F Andrew Ubel, July 14, 1998: US05779365 (111 worldwide citation)

A small sized temperature sensor for measuring temperatures in the body and for measuring temperatures in an extracorporeal blood circulation circuit, wherein the possibility of electrical shock and the cost are reduced, while resolution and reliability are increased. The temperature sensor comprise ...

James R Dunphy, Kenneth P Falkowich: Multiplexed Bragg grating sensors. United Technologies Corporation, Gerald L DePardo, June 20, 1995: US05426297 (109 worldwide citation)

A measurement system for fiber sensors includes a broadband light source 11 providing continuous light which is launched into a fiber 20 having a plurality (or string) of Bragg grating sensors 24, 28, 34. Each sensor has a predetermined central reflection wavelength which shifts as a function of app ...

Sanford Robert A: Chromatic temperature indicator. Meditech Energy and Environmental Corporation, January 11, 1972: US3633425 (104 worldwide citation)

A fever indicator which can be visually monitored by observation of a temperature-dependent color-changing characteristic thereof. Said indicator is advantageously formed of a mixture of liquid crystals, e.g., a mixture formed of cholesteryl pelargonate and cholesteryl oleyl carbonate and maintained ...

Gary A Ball, Gerald Meltz, Leon A Newman: Active multipoint fiber laser sensor. United Technologies Corporation, Gerald L DePardo, May 7, 1996: US05513913 (90 worldwide citation)

A remote active multipoint fiber laser sensor includes a plurality of fiber lasers 12,14,16, each having a pair of Bragg gratings 18,20, embedded in a fiber 10 and excited by a common pump light 30. The lasers 12,14,16 lase at different longitudinal modes (lasing wavelengths) and emit light 32,34,36 ...

Benton William J, Quigley Joseph R: Polyurethane liquid crystal dispersion system and devices. March 18, 1975: US3872050 (82 worldwide citation)

Liquid crystal materials, particularly cholesteric liquid crystal materials, are protected against dust, contamination and the like by being dispersed as discrete naked aggregates in polyurethane materials. The liquid crystal material is mixed with polyurethane-elastomer or polyurethane polymers and ...

Adam Kollin: Visual signalling apparatus. Basile Weintraub & Hanlon, December 21, 1982: US04365238 (78 worldwide citation)

An apparatus for visually signalling hearing impaired persons of the occurrence of an audible sound producing event. A plurality of sensing devices are individually located adjacent to a sound producing device, such as a telephone, doorbell, fire detector, etc., to sense the audible sounds produced ...

Vanzetti Riccardo, Dostoomian Ashod S: Means for detecting changes in the temperature of the skin. Seidel Gonda & Goldhammer, August 20, 1974: US3830224 (70 worldwide citation)

Liquid crystals which have the property of changing color in response to temperature variations are contained in packages and are carried by an article of clothing. These packages sense the temperature of the skin at a control area and at an area that is related to the reproductive system. The gradi ...

Ratnesh K Sharma, Cullen E Bash, Chandrakant D Patel: Data center evaluation using an air re-circulation index. Hewlett Packard Development Company, Richard P Lange, April 18, 2006: US07031870 (66 worldwide citation)

In a method for evaluating one or more components in a data center, inlet and outlet temperatures of one or more heat dissipating devices are detected. In addition, the temperatures of air supplied by one or more computer room air conditioning (CRAC) units are also detected. Indices of air re-circul ...

Shane R Johnson, Christian Lavoie, Mark K Nissen, J Thomas Tiedje: Optical apparatus and method for measuring temperature of a substrate material with a temperature dependent band gap. Oyen Wiggs Green & Mutala, February 14, 1995: US05388909 (64 worldwide citation)

An optical method and apparatus for measuring the temperature of a substrate material with a temperature dependent bandgap. The substrate is illuminated with a broad spectrum lamp and the bandgap is determined from the spectrum of the diffusely scattered light. The spectrum of the light from the lam ...