Class 374/119 - Vibration velocity (e.g., echo timing)

Subclass of Class 374 - Thermal measuring and testing
Definition: Subject matter wherein the temperature is determined by
No. of patents: 73
Last issue date: 05/22/2012

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Number	Title	Issue Date
8182141	Method and circuit for providing distributed temperature sensing in an integrated circuit In one embodiment, an integrated circuit for providing distributed temperature sensing is disclosed. For example, the integrated circuit comprises a plurality of circuit components, an internal temperature sensing device deployed among the plurality of circuit compo...	05/22/2012
7845848	Temperature sensor and extensometer for electrical power cables A thermometer and extensometer for cables and conductors is described. The travel time of one or more acoustic signals along a conductor is used to determine the temperature along the conductor and the length of the conductor. The acoustic frequency is selected to m...	12/07/2010
7845847	Temperature sensor and extensometer for electrical power cables A thermometer and extensometer for cables and conductors is described. The travel time of one or more acoustic signals along a conductor is used to determine the temperature along the conductor and the length of the conductor. The acoustic frequency is selected to m...	12/07/2010
7726875	Methods and apparatus for monitoring a condition of a material Apparatus, methods, and articles of manufacture for monitoring a condition of a material are disclosed. In particular, the example apparatus, methods, and articles of manufacture emit a first acoustic signal into a wall of the tubular member having a first temperatu...	06/01/2010
7708461	Temperature determination of an away-facing surface of an object A method for determining the temperature of an away-facing surface of an object, wherein at least one ultrasonic pulse is transmitted through a surface of the object facing a transmitter/receiver unit into said object; the at least one ultrasonic pulse is reflected ...	05/04/2010
7575371	Temperature sensor and extensometer A thermometer and extensometer for cables and conductors is described. The travel time of one or more acoustic signals along a conductor is used to determine the temperature along the conductor and the length of the conductor. The acoustic frequency is selected to m...	08/18/2009
7481577	Ultrasound transducer fault measurement method and system Ultrasound transducer temperatures are measured in response to a temperature dependent property of the ultrasound transducer. The temperature is measured without addition of new electronics or hardware retrofits of the transducer. By implementing software and/or har...	01/27/2009
7438684	Ultrasonic diagnostic apparatus for controlling the surface temperature of a probe A technology is disclosed for holding the test subject contact surface temperature below a predetermined value without providing a temperature sensor or setting ultrasonic wave output excessively low and, according to this technology, reflex time t1, which pa...	10/21/2008
7434988	Low pressure acoustic pyrometer signal generator An acoustic pyrometer measures the average gas temperature across a space of known distance, especially turbulent, high temperature gas loaded with caustic particulates. It includes an acoustic signal generator that generates a high amplitude acoustic signal with a ...	10/14/2008
7434989	SAW temperature sensor and system A temperature measurement system is characterized by at least one passive surface acoustic wave (SAW) temperature sensor. The sensor includes at least one piezoelectric substrate having an interdigital SAW transducer disposed upon the piezoelectric substrate for con...	10/14/2008
7404671	Dynamic acoustic thermometer Acoustic temperature measurement at a remote location is provided. An acoustic source transmits acoustic radiation to an acoustic receiver along an acoustic path. The path passes through or near the remote location. The temperature is non-uniform along the path. A c...	07/29/2008
7376522	Method and system for determining the direction of fluid flow In an exemplary implementation of a method and system for determining the direction of fluid flow, one or more sound transducers are positioned in proximity to a conduit, each such sound transducer generating a signal representative of a selected characteristic of a...	05/20/2008
7356438	Method and device for temperature monitoring along a measuring line The present invention relates to a registering device for registering a location along a measuring line, at which location a temperature change takes place. In an advantageous way, according to one exemplary embodiment of the present invention, by means of the FMCW ...	04/08/2008
7355819	Machining actuator periphery to reduce resonance variation A method of manufacturing a disc drive actuator is provided. The method includes manufacturing a disc drive actuator and machining a peripheral surface of the actuator. The peripheral surface is machined to obtain a desired profile dimension and thereby reduce varia...	04/08/2008
7338446	Method and apparatus for controlling power in an ultrasound system Methods and systems for controlling an ultrasound system are provided. The method includes receiving scanning information from an ultrasound system, with the scanning information including at least one of image information and spectral information. The method furthe...	03/04/2008
7287537	Megasonic probe energy director A megasonic cleaning apparatus configured to provide effective cleaning of a substrate without causing damage to the substrate is provided. The apparatus includes a megasonic probe, a transducer configured to energize the probe, and a heat transfer element disposed ...	10/30/2007
7266989	Sensor system for high-precision measurements of temperature, composition, and/or pressure of a fluid A sensor system immersible in an ambient-fluid for sensing at least two conditions of the ambient fluid, includes a sealed chamber filled with a reference fluid of a known composition and/or pressure, and two acoustic transmission channels, one including the referen...	09/11/2007
7156551	Ultrasound transducer fault measurement method and system Ultrasound transducer temperatures are measured in response to a temperature dependent property of the ultrasound transducer. The temperature is measured without addition of new electronics or hardware retrofits of the transducer. By implementing software and/or har...	01/02/2007
7017412	Continuous wave ultrasonic process monitor for polymer processing An injection molding apparatus is disclosed that includes an injection mold, a mold injector, and means for monitoring the injection mold process using acoustic energy. The injection mold includes a cavity for receiving an injection mold material, such as a polymer ...	03/28/2006
6960019	Fiber optic temperature monitoring method A method of monitoring a temperature condition includes inputting a light pulse into a fiber optic cable and receiving a reflection signal that arises from said input light pulse in said fiber optic cable. A temperature condition along the fiber optic cable and a lo...	11/01/2005
6945692	Fiber optic temperature monitoring system A system for monitoring a temperature condition includes a fiber optic cable, a light emitting device coupled to the fiber optic cable and configured to input a light pulse into the fiber optic cable, and an optical receiver coupled to the fiber optic cable and conf...	09/20/2005
6837109	Material thickness measurement method and apparatus Longitudinal and shear ultrasonic waves are generated inside a material by irradiating a laser beam onto a first surface, e.g., incident surface, of the material. An ultrasonic longitudinal wave and a mode converted wave reflected by a second surface, e.g., a bottom...	01/04/2005
6789426	Microfluidic channels with integrated ultrasonic transducers for temperature measurement and method There is described a method and apparatus for measuring temperature of a fluid in a microchannel of the type having spaced walls. An ultrasonic transducer transmits ultrasonic waves transmitted from one wall to the opposite wall. A processor determines the time-of-f...	09/14/2004
6764215	Method, a measuring cell and a system for measuring very small heat changes in a sample The present invention relates to a method, a measuring cell and a system for measuring very small heat changes in a sample. The system comprises a measuring cell 16 for containing the sample during the measurement process, at least one electromagnetic radiati...	07/20/2004
6726359	Apparatus and method of detecting the room temperature by means of sound waves An apparatus for detecting the temperature of a room (2) includes means (4) for generating and receiving sound waves, means (5) for determining the transit time of the sound waves for a certain distance (x) in the room (2) and means (1...	04/27/2004
6517240	Ultrasonic thermometer system The ultrasonic thermometer system of the present invention includes a rod or probe of high temperature, grain-stabilized material that has a magnetostrictive or piezoelectric transducer bonded to one end. The transducer is excited by a transducer driver, ...	02/11/2003
6481287	Fluid temperature measurement An acoustic temperature measurement system for pipeline fluids comprises a loudspeaker (16) with spaced microphone (18) in a sealed pipe (10) with end cap (11). A computer arrangement (22) provides a tone burst signal which drives the speaker via power am...	11/19/2002
6296385	Apparatus and method for high temperature viscosity and temperature measurements A probe for measuring the viscosity and/or temperature of high temperature liquids, such as molten metals, glass and similar materials comprises a rod which is an acoustical waveguide through which a transducer emits an ultrasonic signal through one end o...	10/02/2001
6269700	Contactless ultrasonic device for dimensional inspection An acoustic detector which includes at least one emitter unit with a solid tapered profile spike (C) associated with an element (X) for exciting the spike so as to propagate ultrasound waves in an antisymmetrical propagation mode in the spike. The device ...	08/07/2001
6112595	Apparatus and method for characterizing semiconductor wafers during processing An apparatus and method are disclosed for characterizing semiconductor wafers or other test objects that can support acoustic waves. Source and receiving transducers are configured in various arrangements to respectively excite and detect acoustic waves (...	09/05/2000
6026688	Ultrasonic photoresist process monitor and method There is provided a monitor and method for monitoring the condition of a photoresist film on a wafer during baking in which the phase of high frequency ultrasonic pulses reflected from the wafer/photoresist interface provides an indication of the conditio...	02/22/2000
5996415	Apparatus and method for characterizing semiconductor wafers during processing An apparatus and method are disclosed for characterizing semiconductor wafers or other test objects that can support acoustic waves. Source and receiving transducers are configured in various arrangements to respectively excite and detect acoustic waves (...	12/07/1999
5951163	Ultrasonic sensors for on-line monitoring of castings and molding processes at elevated temperatures Ultrasonic sensors and associated methods for on-line monitoring of material properties for die casting, molding and extrusion processes at elevated temperatures are disclosed. The sensors include the use of ultrasonic waveguides embedded in the processin...	09/14/1999
5624188	Acoustic thermometer A thermometer using the temperature dependance of the speed of sound, measures the average temperature along a path traversing an open environment containing a medium. A transmitting transducer, coupled to a signal generator and placed at a first point in...	04/29/1997
5604592	Laser ultrasonics-based material analysis system and method using matched filter processing Disclosed herein is an interferometric-based materials analysis system (10) that employs a novel combination of laser beam shaping and pointing techniques, the use of a low cost, rugged, and compact diode laser (22) as a detection laser, and the use of si...	02/18/1997
5469742	Acoustic temperature and film thickness monitor and method An acoustic temperature and/or film thickness monitoring system for semiconductor wafers in which the velocity of acoustic waves in the wafer is employed to measure temperature and/or thickness....	11/28/1995
5437506	System for measuring the transfer time of a sound-wave in a gas and thereby calculating the temperature of the gas A system for measuring the "time of flight" or transfer time of a sound wave in a gas by using the relation between the gas temperature and the velocity of the sound wave in the gas, and calculating therefrom the temperature of the gas. The system compris...	08/01/1995
5414510	Method and apparatus for measuring surface movement of an object using a polarizing interfeometer A system for non-destructively measuring an object and controlling industrial processes in response to the measurement is disclosed in which an impulse laser generates a plurality of sound waves over timed increments in an object. A polarizing interferome...	05/09/1995
5360268	Ultrasonic temperature measuring apparatus A temperature measuring apparatus measures the temperature of a medium according to the propagation time of ultrasonic waves propagated for a predetermined distance through the medium. The apparatus has a transmitter 11, 12 for transmitting ultrasonic wav...	11/01/1994
5349859	Method and apparatus for measuring acoustic wave velocity using impulse response The transit time of acoustic waves between a generator and a receiver positioned across a fluid chamber is determined by generating acoustic waves using a self-purging pneumatic sound generator, a transducer adjacent the outlet of the sound generator, and...	09/27/1994

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Class 374/119 - Vibration velocity (e.g., echo timing)