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| Number | Title | Issue Date |
| 8083405 | Pressure sensor having a rotational response to the environment Methods and systems of the invention are directed to a pressure sensor that includes a substrate, a first conductive plate, and a second conductive plate. The substrate is formed of a material having a low coefficient of thermal expansion (CTE). The first conductive... | 12/27/2011 |
| 8043000 | Resonance tag with temperature sensor A temperature-history sensor includes a resonance circuit composed of at least a capacitor and a coil. The temperature-history sensor has a display for indicating a predetermined set temperature of the temperature-history sensor. The capacitor has at least a thermof... | 10/25/2011 |
| 7810993 | Temperature sensor having a rotational response to the environment Methods and systems of the invention are directed to a temperature sensor that includes a substrate, a first conductive plate, and a second conductive plate. The substrate is formed of a material having a low coefficient of thermal expansion (CTE). The first conduct... | 10/12/2010 |
| 7607829 | Resonance tag with temperature sensor A temperature-history sensor includes a resonance circuit composed of at least a capacitor and a coil. The temperature-history sensor has a display for indicating a predetermined set temperature of the temperature-history sensor. The capacitor has at least a thermof... | 10/27/2009 |
| 7413343 | Apparatus for determining a temperature sensing element An apparatus and method measure a temperature of a temperature sensing element having a temperature dependent resistance based on a ratio of discharge times of a capacitor through a reference resistance and through the combination of the reference resistance in para... | 08/19/2008 |
| 7322744 | Temperature measurement device A temperature measuring device includes a temperature-responsive element that mechanically moves a first inductive assembly component relative to a second inductive assembly component in response to temperature changes. The movement of the first inductive assembly c... | 01/29/2008 |
| 7282909 | Methods and apparatus for determining the thickness of a conductive layer on a substrate A method of determining the thickness of a conductive film is disclosed. The method employs measured voltage and current responses that have been temperature-compensated to determine the thickness of the conductive film. The temperature compensation uses a temperatu... | 10/16/2007 |
| 7230205 | Compressor airfoil surface wetting and icing detection system In some instances, ice can form on the surface of a compressor airfoil. If the ice dislodges, it can impact and damage other compressor components. Aspects of the invention relate to systems for detecting the presence of ice or water on a compressor vane during engi... | 06/12/2007 |
| 7134785 | Capacitance temperature sensor and temperature measuring device A capacitance temperature sensor in which temperature is measured by detecting capacitance of a parallel plate condenser which comprises a dielectric material comprising strontium titanate single crystal in which (a) 30% by weight or less of oxygen-16 or (b) ... | 11/14/2006 |
| 7114848 | Environment sensor An environment sensor (11) for measuring the temperature and humidity can be miniaturized and can respond at high speed. The environment sensor (11) includes a temperature sensing portion (111) having a temperature-sensitive material (1) ... | 10/03/2006 |
| 7088567 | Tunable capacitors using fluid dielectrics Capacitors (10,20,40,50,70,80) having a fluid dielectric material that is transported or undergoes a phase change are disclosed. The dielectric medium change results in a change in the total dielectric constant of the material between the electrodes (12, 1... | 08/08/2006 |
| 7059768 | Standards for the calibration of a vacuum thermogravimetric analyzer for determination of vapor pressures of compounds The invention provides a set of standards for accurately calibrating a vacuum thermogravimetric analyzer (VTGA). The invention solves the problem of calibrating a VTGA by using the actual magnetic transitions and associated transition temperatures, or Curie temperat... | 06/13/2006 |
| 7042230 | Multi-parameter sensing system Systems and methodologies that provide for multi-parameter sensing via micro fabricated sensing structures operatively connected to oscillators, each micro-fabricated sensing structure in part defines a frequency of a respective associated oscillator. Output from su... | 05/09/2006 |
| 6923572 | Data acquisition device using radio frequency identification (RFID) system A sensor 2 of a data collection system 2 is designed to make, in a predetermined environment, an operation of writing output data of a sensing circuit 24 into a non-volatile memory 22 as reference-value data, and, in a measurement environ... | 08/02/2005 |
| 6916910 | Method and process for the production of collagen preparations from invertebrate marine animals and compositions thereof The present invention relates to a process for the production of marine invertebrate type V telopeptide containing collagen preparations from marine invertebrates, compositions containing preparations, and methods of using these preparations. The collagen preparatio... | 07/12/2005 |
| 6773158 | Resonant circuit for measuring temperature profile of a semiconductor substrate In a method apparatus for measuring the temperature of a semiconductor substrate during processing thereof in a processing chamber, a resonant circuit formed on the substrate surface is energized by an electromagnetic field radiation device, and disturbances in the ... | 08/10/2004 |
| 6769804 | Temperature measuring method, object detecting method and object detecting device with vibrating-type level sensor A magnet is provided to a vibrating plate within a detection pipe unit and an electromagnet is placed opposite to the magnet with a slight gap therebetween. A drive circuit applies, to a coil at every predetermined measurement cycle, an alternating current at a freq... | 08/03/2004 |
| 6278379 | System, method, and sensors for sensing physical properties Several sensors are provided for determining one of a number of physical roperties including pressure, temperature, chemical species, and other physical conditions. In general, the sensors feature a resonant circuit with an inductor coil which is electrom... | 08/21/2001 |
| 6217211 | Temperature measuring and monitoring A temperature measuring and monitoring arrangement, in particular for leak detection on pipelines. A number of temperature sensors (30) are arranged in a distributed array along the item to be monitored and are connected to one or more computers (15, 19) ... | 04/17/2001 |
| 6130414 | Systems and methods for controlling semiconductor processing tools using measured current flow to the tool Systems and methods for controlling the temperature or other characteristic of semiconductor processing tools by measuring current flow to the tool is provided. In one embodiment, a current sensor is provided for measuring current flow to the heat source ... | 10/10/2000 |
| 6111520 | System and method for the wireless sensing of physical properties Several sensors are provided for determining one of a number of physical properties including pressure, temperature, and other physical conditions. In general, the sensors feature a resonant circuit with an inductor coil which is electromagnetically coupl... | 08/29/2000 |
| 6091255 | System and method for tasking processing modules based upon temperature An on-chip thermometer and methods for using the on-chip thermometer to measure a local temperature and to operate an integrated circuit. The on-chip thermometer comprises a clock circuit, a temperature responsive circuit, and a counter. The clock circuit... | 07/18/2000 |
| 5862170 | Temperature measurement method using temperature coefficient timing for resistive or capacitive sensors A method and apparatus for temperature measurement especially suited for low cost, low power, moderate accuracy implementation. It uses a sensor whose resistance varies in a known manner, either linearly or nonlinearly, with temperature, and produces a di... | 01/19/1999 |
| 5788376 | Temperature sensor A temperature sensor apparatus comprising: a capacitor with first and second conductors and a dielectric material between the conductors; a frequency generator coupled to the capacitor and providing an excitation signal thereto; a processor coupled to the... | 08/04/1998 |
| 5694046 | Method and apparatus for monitoring thermal processing of a workpiece in accordance with a measured capacitance frequency distribution A method and apparatus for monitoring thermal processing of a workpiece using a sensor electrode which can be positioned relative to the workpiece and to which an alternating electric signal is applied in order to determine a measured capacitance (Cm... | 12/02/1997 |
| 5613778 | Method for collecting liquid temperature data from a fuel tank A method for collecting liquid temperature data from a fuel tank id achieved by providing a thermal sensitive resistive element that produces a value proportional to the liquid's temperature, a capacitor for storing a charge representative of this value, ... | 03/25/1997 |
| 5611623 | Apparatus for collecting liquid temperature data from a fuel tank An apparatus for detecting the temperature of a liquid fuel stored in a tank of a vehicle includes a thermal sensitive resistor immersed in the fuel. The resistor charges a capacitor to a level indicative of the temperature of the fuel. A programmable mic... | 03/18/1997 |
| 5576224 | Method for manufacturing a monitor element A method and structure for sensing data such as temperature with respect to objects such as silicon wafers undergoing fabrication or other processes involve the use of a monitor element of material and configuration similar to that of the objects being pr... | 11/19/1996 |
| 5466614 | Structure and method for remotely measuring process data A method and structure for sensing data such as temperature with respect to objects such as silicon wafers undergoing fabrication or other processes involve the use of a monitor element of material and configuration similar to that of the objects being pr... | 11/14/1995 |
| 5451786 | Uncooled mis capacitor for infrared detection An uncooled thermal detector (10) includes a MIS capacitor (12) that is suspended from a material (26, 26a) having a low thermal conductivity. The MIS capacitor includes a doped semiconductor body portion (14) having a gate dielectric (20), a gate electro... | 09/19/1995 |
| 5407276 | Diamond temperature and radiation sensor A temperature sensor comprises a body of insulating diamond material and a pair of spaced apart electrical contacts applied to the body. The body has a predetermined thickness between the contacts, and the contacts have a predetermined area, so that the s... | 04/18/1995 |
| 5257864 | Temperature detector Zero-cross points of an ac voltage waveform (v) applied to a heat-sensitive wire (1) and an ac current waveform (i) flowing into the heat-sensitive wire (1) are detected by a zero voltage detection unit (3) and a zero current detection unit (4), and the i... | 11/02/1993 |
| 5228781 | Thermometer The thermometer consists of an operational amplifier ratio bridge which is made up of at least one arm having a 3-terminal high impedance temperature sensor one of whose leads being connected to the output of an operational amplifier whose gain has been s... | 07/20/1993 |
| 4950084 | Capacitive sensor The invention relates to a capacitive sensor for the measurement, under dynamic conditions, of at least one characteristic of a turbo-machine, this sensor comprising a conductive surface intended to be fixed to the casing near a succession of rotating bla... | 08/21/1990 |
| 4897584 | Device and method for detecting the coil temperature of a direct-current motor, especially a brushless direct-current motor A device and method for detecting the coil temperature of a direct-current motor by determining the resistance of at least one coil of the motor. The method includes measuring a parameter of the at least one coil while the motor is running. The measuremen... | 01/30/1990 |
| 4883366 | Temperature sensor A temperature sensor includes a capacitor having electrodes between which a dielectric body having its dielectric constant variable depending on the variations of ambient temperature is interposed, and a CR oscillating circuit utilizing the capacitor. The... | 11/28/1989 |
| 4874252 | Electronic thermometer An electronic thermometer has an oscillator, the frequency determining element of which is a temperature sensitive piezoelectric element (2), used as a measuring sensor, which is located inside a sealed housing (3). The piezoelectric element is provided w... | 10/17/1989 |
| 4861168 | Electronic thermometer An electronic thermometer has an oscillator, the frequency determining element of which is a temperature sensitive piezoelectric element, used as a measuring sensor, which is located in a sealed housing of electrically insulating material. The piezoelectr... | 08/29/1989 |
| 4841458 | Analog to digital conversion by measuring the ratio of RC time constants The present invention is a technique for forming a digital signal representing an environmental condition. The technique consists of measuring the variable time constant of an analog sensing device having a variable resistance dependent upon the environme... | 06/20/1989 |
| 4818895 | Direct current sense lead In a circuit assembly (36) having a semiconductor chip such as a MOSFET (12) mounted on a drain terminal lead frame (6) on a ceramic substrate (4), a combined source and gate return reference jumper wire (40) is connected between a current sense lead fram... | 04/04/1989 |
