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| Number | Title | Issue Date |
| 8183876 | Water content detection sensor system A water content detection sensor includes a circuit member in which low resistance conductors 1,2 disposed in parallel to each other and a high resistance conductor 3 connecting end portions of the respective low resistance conductors, a carrier body | 05/22/2012 |
| 8154313 | Water detection assembly for primary drain lines A water detection assembly having an electronic fluid-sensing probe located in-line within a primary drain line associated with a fluid-producing unit via probe connection to an access port used for clearing and removing clog-causing debris from the primary drain li... | 04/10/2012 |
| 8149003 | Method and device for determining the humidity content of an insulation of a transformer A method and a device for determining a humidity content of an insulation of a transformer, the insulation having a liquid. At least one dielectric property of the insulation is measured, an uncorrected humidity content of the insulation and a conductivity of a liqu... | 04/03/2012 |
| 8115501 | Electro-mechanical fluid sensor A sensor system includes a sensor and a control module. The sensor includes an electrically actuated moving member. The sensor is in fluid communication with a reservoir of a separator that separates a first fluid from a fuel. The control module selectively causes c... | 02/14/2012 |
| 8058885 | Porous medium electrical conductivity sensor There is provided a sensor for measuring a quantity, such as the salinity, of the soil solution without requiring continuous calibration. The sensor is based on a porous material which automatically fills up and saturates when the soil is rewet and drains when the s... | 11/15/2011 |
| 8035403 | Wireless soil sensor utilizing a RF frequency for performing soil measurements A wireless soil sensor for using a RF frequency for performing soil moisture measurements is disclosed herein. The sensor preferably includes a sensing component integrated directly with a radio and a microcontroller. The wireless soil sensor is designed to be burie... | 10/11/2011 |
| 7960978 | Method for providing leak detection in pre-insulated piping A method is shown for providing status detection, in particular leak detection, in a pre-insulated pipeline for the transportation of media, in particular, steam or hot water. The pipeline has an inner medium-carrying pipe, a surrounding heat-insulating layer of bon... | 06/14/2011 |
| 7944220 | Moisture content sensor and related methods A moisture content sensor for measuring the moisture content of a medium. The sensor includes a probe that injects an electrical signal into the medium. Complex impedance circuitry located between the probe and the electrical signal source allows sensing electronics... | 05/17/2011 |
| 7804309 | Systems and methods for soil moisture estimation Embodiments of the present invention provide estimates of soil moisture by measuring the change in electrical conductivity near the surface of the earth using surface-propagated electromagnetic fields. A method is provided for estimating near-surface soil moisture, ... | 09/28/2010 |
| 7759948 | Disposable total dissolved solids meter and methods of use thereof A disposable meter for testing the level of total dissolved solids in a water source and a method of testing the concentration of total dissolved solids are herein disclosed. The disposable meter may include a body with at least water resistant properties, a first i... | 07/20/2010 |
| 7629801 | Sensing system for use in detecting a surface condition of a roadway surface The present invention is generally directed toward sensors and associated methods, including surface condition sensors. For example, in certain embodiments sensor can be configured to sense the surface conditions on a road surface and/or an airport surface. One aspe... | 12/08/2009 |
| 7609074 | Electronic moisture tester The moisture content of a foodstuff or other solid matter is determined by reducing the matter to a paste, packing the paste into a vessel equipped with multiple pairs of plate electrodes and one or more temperature sensors, applying an AC voltage across each pair o... | 10/27/2009 |
| 7521944 | System and method for detecting fluid in terminal block area of field device A field device detects the presence of fluid in the terminal block area of the field device by generating an alternating current (AC) test current signal and measuring the amplitude of the resulting AC voltage signal. The field device includes a first terminal and a... | 04/21/2009 |
| 7498823 | Physical quantity, particularly humidity detection device, and related detecting method A pair of identical humidity sensors (S1) and (S2) are in the same environment, so that they identically react to humidity effects; a sensing circuit includes an operational amplifier (10), its input (15) receiving from the first sensor (... | 03/03/2009 |
| 7453271 | Apparatus and method for sensing water within a fuel-water separator assembly A method of sensing water within a fuel-water separator assembly disposed within a fuel system of an internal combustion engine is provided. The method includes the steps of: A) monitoring a single selectively activatable sensor within the fuel-water separator assem... | 11/18/2008 |
| 7436187 | Conductance control for detecting foam and/or an unstable fluid line A method and apparatus is provided for detecting and responding to foaming of a fluid being heated, and more particularly, for operating a device having a container with fluid therein, wherein a resistance of an electrical path from a probe is measured through the f... | 10/14/2008 |
| 7414408 | Thin deck water property sensor A thin deck water property sensor includes a base, an upper lid, a positive and negative probe, an electric connection element, a processing unit and a display unit. The base and the upper lid are coupled together to form a flat deck. The upper lid has a recess to h... | 08/19/2008 |
| 7408364 | Sensor for measuring moisture and salinity A sensor for measuring the moisture and salinity of a material is disclosed herein. The sensor preferably includes a soil moisture circuit, a soil salinity circuit and a probe structure. The soil moisture circuit includes a high frequency oscillator, a voltage meter... | 08/05/2008 |
| 7403019 | Apparatus and method of water absorption test for generator stator winding insulator using cross capacitance Apparatus and method of water absorption for generator stator winding insulator using a cross capacitance are disclosed. The apparatus includes a sensor using a cross capacitance, and a water absorption testing unit for carrying out the water absorption test of the ... | 07/22/2008 |
| 7376368 | Water content determination apparatus, image forming apparatus, control method, and program An image forming apparatus has a water content determination apparatus that can precisely determining a water content in a medium regardless of an environment where the image forming apparatus is installed. The water content determination apparatus has a detection d... | 05/20/2008 |
| 7363160 | Technique for determining properties of earth formations using dielectric permittivity measurements Techniques for determining formation characteristics use measurements of dielectric permittivity at a number of frequencies. Determined characteristics include the vertical and horizontal formation dielectric constant and conductivity, the formation water conductivi... | 04/22/2008 |
| 7362225 | Flexible occupant sensor and method of use Flexible circuit material is used for positioning one or more antennas for occupant detection within a seat. The antenna and associated signal traces to an occupant detection circuit may be more easily manufactured using a flexible material while minimizing discomfo... | 04/22/2008 |
| 7360395 | Gas sensor A gas sensor which includes walls delimiting a gas detection chamber, and having an introduction port (or an inlet) through which an observed gas is introduced into the gas detection chamber, a measuring element disposed in the gas detection chamber and measuring co... | 04/22/2008 |
| 7352191 | Sensor assembly and method of forming the same A sensor assembly includes a sensing element electrically connected to a conductor of a flexible multiconductor cable using a conductive patch, which is electrically connected to the conductor. A method of forming a sensor assembly includes electrically connecting a... | 04/01/2008 |
| 7350397 | Device for measuring the quantity of solid particles in a gas medium A device for detecting the amount or concentration of particulate matter in a gas medium comprises a structure for the deposit of solid particles, at least a first and a second electrode associated to the structure, and means for measuring an electric quantity betwe... | 04/01/2008 |
| 7345491 | Clothes dryer moisture sensing circuit A moisture sensing circuit for a clothes dryer in which clothes tumble during drying has a pair of spaced apart electrode sensors for sensing the electrical resistance of the clothes when the clothes contact the electrodes. The circuit has an active filter for suppr... | 03/18/2008 |
| 7327132 | Testing procedure for evaluating diffusion and leakage currents in insulators A method for predicting long-term electrical insulation properties of composite materials in a moist environment. The method including the steps of providing a specimen, and testing the specimen to determine moisture content values and leakage current values at pred... | 02/05/2008 |
| 7316154 | Seals with integrated leak progression detection capability A multifunctional seal that in one embodiment includes on each contact surface multiple redundant seals, sensors and sensor circuitry between each seal, and a power source and embedded electronic components and circuitry within the central core region. The seal is c... | 01/08/2008 |
| 7285964 | Method for signal extraction in a universal sensor IC A apparatus and method for creating a universally usable and configurable sensor platform which is used in conjunction with various sensor and sensing elements to sense and measure environmental conditions which incorporates inputs from multiple sensors 6-... | 10/23/2007 |
| 7271729 | Novelty moisture detector for plants A novel moisture detector for detecting moisture in potting media or soil for plants includes a body formed to represent a creature. Inside the body is a processor and a battery. One or more probes adapted to be inserted into soil extend from the body and send an el... | 09/18/2007 |
| 7258483 | Device for measuring the level and/or the temperature in a container A device for measuring at least one of a level and a temperature of a liquid in a container includes a resistor arrangement adapted to be immersed in the liquid. An immersed length of the resistor arrangement in the liquid corresponds to the level of the liquid in t... | 08/21/2007 |
| 7243540 | Low-water cut-off system A low-water cut-off system [A] determines if fluid [W] within a boiler or other enclosure drops below a predetermined level within the enclosure. A signal generator introduces a signal into the enclosure so that the signal is present for sensing at the predetermined... | 07/17/2007 |
| 7239246 | System and method for detecting water leakage A 3D liquid detection sensor, liquid-sensitive building material, and liquid detection systems have been provided. The 3D sensor comprises a 3D liquid detection field and an electrical connector to supply a resistance measurement responsive to liquid in the detectio... | 07/03/2007 |
| 7231815 | Relative humidity probe for concrete A probe for determining the relative humidity and temperature of a substance such as a concrete floor. The probe is adapted to be inserted into a hole in the substance being tested. The probe has a head portion and a tail portion. A display is provided on the head p... | 06/19/2007 |
| 7230260 | Raindrop sensor A raindrop sensor for sensing water attached to a second surface of a transparent body includes a light emitting element, a light guide body, a light receiving element, and an abnormality determining device. The light emitting element is provided in a first surface ... | 06/12/2007 |
| 7194781 | Windscreen wiper device with life span indicator A windscreen wiper device comprising an oscillating arm and a frame connected thereto for receiving a wiper blade, which device includes a life span indicator, characterized in that said indicator is sensitive to water. The indicator can change its color in dependen... | 03/27/2007 |
| 7176697 | Flexible probe for measuring moisture content in soil The embodiments of the invention are directed to a new apparatus and method of measuring the water content using time domain reflectometry (TDR), or electrical conductivity in deep soil levels. to. The method uses flat, flexible, waveguides attached to a flexible sl... | 02/13/2007 |
| 7154282 | System and method for calibrating moisture meters with associated settable slurry products for determining relative dryness A method is provided for calibrating a moisture meter to a particular settable slurry product for determining the relative dryness of the product. The steps of the method include determining the appropriate relative dryness of the particular slurry product, associat... | 12/26/2006 |
| 7110862 | Apparatus and method for digitally controlling plant pot, and method for ordering plant pot delivering on-line Provided is an apparatus of digitally controlling a plant pot including a case coupled to the outer circumference of the pot, a moisture sensor drawn from the case, for detecting moisture in soil contained in the pot, a liquid crystal display (LCD) installed in the ... | 09/19/2006 |
| 7093500 | Tunable empty pipe function An electromagnetic flowmeter for measuring a flow rate of a fluid in a pipe is described. A pipe carries a fluid. A magnetic coil is disposed adjacent to the pipe for inducing a magnetic flux in the fluid. A plurality of electrodes are disposed within the pipe, and ... | 08/22/2006 |
