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| Number | Title | Issue Date |
| 7946151 | Proton exchange membrane fuel cell humidity sensor A humidity sensing device for determining the amount of humidity in at least one primary fluid stream that is passed to a fuel cell stack is provided. The sensing device includes an outer housing and an inner housing. The outer housing is positioned within at least ... | 05/24/2011 |
| 7404312 | Humidity-sensitive element for humidity sensor The invention provides a humidity-sensitive element using, as a humidity-sensitive film, a polyimide having a molecular structure capable of forming a network structure at a high density, exhibiting less drift after being left standing at a high temperature and a hi... | 07/29/2008 |
| 7393135 | Moisture detection device Very small projections (10-2) are arranged on a mirror surface (10-1) of a mirror (10). The shape of a projection (10-2) is not limited to a circular cone, but it can be a hollow-cylindrical shape, semispherical shape... | 07/01/2008 |
| 7380980 | Detector for detecting state on detection surface The long-side surface of a triangular prism is a detection surface. The distal end portions of coaxial light-emitting/light-receiving optical fiber cables are joined to one short-side surface of the prism. A thermoelectric cooling element is mounted on the other sho... | 06/03/2008 |
| 7360398 | Receptacle for sensors A receptacle for sensors insertable into a gas stream, houses at least one sensor for controlling at least one physical/chemical parameter of the gas stream, and is defined by at least one boundary wall, at least part of which is defined by a filtering element perme... | 04/22/2008 |
| 7350970 | Dew point measurement method and device for carrying out said method The invention relates to measuring engineering. In order to increase accuracy by increasing sensitivity, for the inventive dew point measurement method a light flux polarized in the plane of incidence thereof is used and directed towards the condensation surface of ... | 04/01/2008 |
| 7337683 | Insitu inertial particulate separation system A sampling system for separating gaseous samples from a gas stream containing particulate matter and transporting the gaseous samples to a location outside of the flowing gas stream comprises an inertial filter mounted on the end of a hollow probe, the inertial filt... | 03/04/2008 |
| 7332013 | Compressed air/gas-driven tool with integrated dryness indicator An air/gas-driven tool with an integrated air/gas dryness indicator. The tool includes a housing that defines a cavity. An air/gas dryness detector is disposed in the cavity. An air/gas flow passage is situated to provide a stream of compressed air/gas to the drynes... | 02/19/2008 |
| 7318910 | Chemical dosimeter A chemical dosimeter comprising: a chamber defined by a heat resistant mesh; and a quantity of an adsorbent contained within the chamber; the arrangement being such that gas may diffuse into the chamber through the heat resistant mesh so that chemicals in the gas ma... | 01/15/2008 |
| 7316198 | Humidity indicator A humidity indicator includes a first film (F1) covering a surface of a humidity-determining plate (B), and a second film (F2) covering a back of the humidity-determining plate (B). A flat air layer (Au) is formed at least between the first film (F1... | 01/08/2008 |
| 7243882 | Gauge display assembly An assembly for attaching gauges or other accessories to vehicles provides a rampart member for securing the assembly to a vehicle surface and a gauge display member secured to the rampart member for receiving and displaying gauges and other instruments. ... | 07/17/2007 |
| 7205701 | Passive wireless acoustic wave chemical sensor A passive wireless acoustic wave chemical sensor can be utilized for monitoring the concentration of an analyte in a substance such as blood. Such an acoustic wave chemical sensor can be configured to include one or more interdigital transducers and a selective coat... | 04/17/2007 |
| 7195009 | Detection of a humidity sensor failure in an internal combustion engine A system and method for utilizing a humidity sensor with an internal combustion engine of a vehicle is described. Specifically, information from the humidity sensor is used to adjust a desired air-fuel ratio to reduce engine misfire while improving vehicle fuel econ... | 03/27/2007 |
| 7181953 | Moisture detector assembly The moisture detector assembly includes a moisture detector having a probe extending into a housing bore to have fluid flow in contact with the probe and exiting through a housing bore orifice. A pressure regulator is mounted to the housing with its outlet opening t... | 02/27/2007 |
| 7181966 | Physical quantity sensor and method for manufacturing the same A capacitance type humidity sensor includes: a detection substrate including a detection portion on a first side of the detection substrate; and a circuit board including a circuit portion. The detection portion detects humidity on the basis of capacitance change of... | 02/27/2007 |
| 7168298 | Mass-sensitive chemical preconcentrator A microfabricated mass-sensitive chemical preconcentrator actively measures the mass of a sample on an acoustic microbalance during the collection process. The microbalance comprises a chemically sensitive interface for collecting the sample thereon and an acoustic-... | 01/30/2007 |
| 7145675 | Humidity-based printer system control A printer system comprises a communication interface and printer components. The communication interface receives a humidity value from a toner cartridge. The printer components control printing operation based on the humidity value. To control printing operation, t... | 12/05/2006 |
| 7134318 | Method of analyzing entrained liquid in a vapor containing fluid A system for the retrieval and initial conditioning of sample gas for “on line” analyzers or filling of gas sample cylinders. The preferred embodiment of the present invention contemplates a system configured to obtain a representative gas phase sample from a pr... | 11/14/2006 |
| 7086272 | Calibration method for digital air pressure gauge The digital air pressure gauge includes an error correction lookup table database stored within a memory device within the gauge. The database includes reference air pressure values and associated measured air pressure values, where the reference air pressure values... | 08/08/2006 |
| 7077004 | Method and device for measuring humidity A method and a device for measuring humidity may be suitable for determining the relative humidity in the high-humidity range. The device includes a sensor device, as well as a circuit connected to the same. The sensor device includes a capacitive humidity-sensor el... | 07/18/2006 |
| 7062968 | Temperature control apparatus for humidity sensor A temperature control apparatus for a humidity sensor is provided for preventing impurities from sticking on a sensor element, while protecting the sensor element from cracking due to the humidity sensor heated by a heater in the presence of condensation, to maintai... | 06/20/2006 |
| 7059170 | Method and apparatus for measuring relative humidity of a mixture A method and apparatus for measuring relative humidity of a mixture that provides a quick response time for thermal lag while affording protection to fragile sensors. In one aspect, the invention is an apparatus comprising: a chamber having a membrane covering an op... | 06/13/2006 |
| 7049829 | Moisture sensor with capacitive moisture measuring element and method of determining air humidity In a method of determining air humidity, a corrected moisture signal is calculated for a moisture signal (Hi) ascertained from electrical properties of a capacitive moisture measuring element. In a measuring phase (30) with rising relative air humidity (RH), ... | 05/23/2006 |
| 7028531 | Sensor arrangement A sensor arrangement is suitable for detecting if a windscreen of a motor vehicle is fogging. The sensor arrangement includes a heat conducting layer disposed on a supporting surface, the layer exhibiting good heat conducting properties. A support plate is arranged ... | 04/18/2006 |
| 7030630 | Moisture sensor with capacitive moisture measuring element and method of determining air humidity In a method of determining air humidity, a capacitive moisture measuring element (2) used in a moisture sensor for calculation operations is modelled by a parallel circuit of an ideal capacitor (C) and an ohmic resistance (Rp). Charging and/or discharging of ... | 04/18/2006 |
| 7013700 | Device and method for determining the moisture in gases A measuring device for measuring the moisture in gases comprises the following features: a moisture sensor and an evaluation unit connected thereto to provide a measured quantity representing a relative moisture in a gas, and a heating device which is thermally coup... | 03/21/2006 |
| 7003417 | Multiple calibration ranges stored in a process transmitter Process variable transmitters, and method for calibrating such device, are disclosed that support calibrating, within a single transmitter device, multiple operating ranges such that a transmitter can switch from a first calibration correction definition associated ... | 02/21/2006 |
| 6990847 | Sensor unit comprising an air humidity sensor and an air temperature sensor A sensor unit comprises a mounting base (1) on which an air moisture sensor (3) and an air temperature sensor (4) are disposed. The air moisture sensor (3) is disposed over a bore (5) of the mounting base and covers the bore (5 | 01/31/2006 |
| 6976386 | Tensiometer methods A method for collecting data regarding a matric potential of a media includes providing a tensiometer having a stainless steel tensiometer casing, the stainless steel tensiometer casing comprising a tip portion which includes a wetted porous stainless steel membrane... | 12/20/2005 |
| 6972142 | Card having multiple layers indicating relative humidity A multi-layered card having a thin, flexible, non-moisture absorbable, printable first layer, a first high tack adhesive second layer on a back side of the first layer joining the first layer to a front face of a third layer of a moisture absorbable card stock. A ba... | 12/06/2005 |
| 6915660 | Method and system for liquefaction monitoring A method and system for liquefaction monitoring of a gas in a gas piping system in which pressure and temperature information about the gas is gathered and the liquefaction status of the gas is determined and reported. ... | 07/12/2005 |
| 6895803 | Humidity sensor A method and apparatus are described for sensing the absolute humidity of gases where the relative humidity of gases are measured, the humidity transducer is heated, the resulting temperature measured and the absolute humidity calculated (based on the power to heat ... | 05/24/2005 |
| 6860143 | State determining apparatus for humidity sensor A state determination apparatus for a humidity sensor is provided for accurately determining the state of the humidity sensor, including the responsibility, from a result detected by the sensor itself. The state determining apparatus is configured to determine a hum... | 03/01/2005 |
| 6796550 | Humidifier filter servicing and water level indicator A humidifier includes a housing, a fan assembly, a wick assembly, a first humidity sensor, a second humidity sensor, and a controller. The housing has an air inlet, an air outlet, and a reservoir for holding water. The fan assembly creates an airflow through the hou... | 09/28/2004 |
| 6772621 | Tensiometer methods and apparatus A method for collecting data regarding a matric potential of a media includes providing a tensiometer having a stainless steel tensiometer casing, the stainless steel tensiometer casing comprising a tip portion which includes a wetted porous stainless steel membrane... | 08/10/2004 |
| 6568265 | Humidity sensor and method for making A humidity sensor includes a pair of interdigital electrodes disposed on an insulating substrate and defining a gap therebetween, an undercoat layer of silane compound lying on the gap-defining electrodes and substrate, and a humidity sensitive thin film ... | 05/27/2003 |
| 6566893 | Method and arrangement for monitoring surfaces for the presence of dew A method and device for detecting condensation on surfaces of structural components. A evaluation signal is generated before dewing while the structural component is cooling. A detectable film is produced on a measuring arrangement a few degrees Kelvin be... | 05/20/2003 |
| 6564633 | Measurement method and system for a humidity or gas concentration sensor A method and system relating to an improvement in measuring accuracy of a gas concentration sensor, the method comprising the steps of measuring a parameter of the sensor, the parameter being a resistance or a capacitance, that is sensitive to the gas or ... | 05/20/2003 |
| 6523810 | Modular performance indicator for a humidifier A humidifier includes a modular performance indicator that is removably attached to a grill of the humidifier air outlet. The performance indicator generally includes at least one humidity sensing means and a display. The humidity sensing means is positio... | 02/25/2003 |
| 6514721 | Air sampler for pathogens and psychrometrics An air sampler device and method for collecting airborne pathogens and psychrometric data for room or remote air samples wherein the sample volume is electronically controlled. Particulates in the air are caused to impact the surface of the growth/inhibit... | 02/04/2003 |
