| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 324438000 | Using a pH determining device | 12 |
| 20090212782 | System for Maintaining pH and Sanitizing Agent Levels of Water in a Water Feature - A system automatically maintains at least one of a pH level and a sanitizing agent level of water in a water feature. The system includes a sensor assembly responsive to at least one of a pH level of the water and a sanitizing agent level of the water. The system further includes a controller which generates control signals in response to signals from the sensor assembly. The system further includes at least one of a first source containing a sanitizing agent material and a second source containing a pH-modifying material. The system further includes a third source comprising a valve assembly and a third container containing a liquid calibrant material. The valve assembly is responsive to at least a portion of the control signals from the controller by selectively allowing the calibrant material to flow from the third container through the sensor assembly to the water feature. | 08-27-2009 |
| 20090302856 | Plug-In Module for a Liquid or Gas Sensor - A plug-in module for a liquid- or gas-sensor comprised of a sensor module (SM) and a sensor module head (SMH), which can be releasably connected together, and which, when connected, enable data and energy transfer via a galvanically decoupled transfer section, wherein the sensor module head (SMH) includes an energy supply unit for operating the sensor module head (SMH) and the sensor module (SM), as well as a data memory (MEM), in order to store sensor data received from the sensor module (SM). | 12-10-2009 |
| 20090309603 | Hydrogen Quantity Sensor and Hydrogen Storage Device Using the Same - It is an object of the present invention to provide a hydrogen quantity sensor that can directly measure hydrogen contained in a hydrogen storage device with simple and easy means. The hydrogen quantity sensor comprises a detecting electrode | 12-17-2009 |
| 20100033188 | APPARATUS, METHOD AND SYSTEM FOR DETERMINING A PHYSIOLOGICAL CONDITION WITHIN A MAMMAL - A system, method and apparatus for determining a physiological condition within a mammal based on pH and/or temperature measurements. In one aspect, the invention is directed to an apparatus for measuring a physiological condition within a mammal comprising: an elongated housing extending along a longitudinal axis from a proximal end to a distal end, the housing having an internal cavity; a transverse wall within the internal cavity; a cutout in the elongated housing forming an opening into the internal cavity and exposing at least a portion of the transverse wall; a pH sensor for measuring pH within a body lumen of the mammal and located on the exposed portion of the transverse wall; a cover having a first opening forming a first passageway through the cover; and the cover secured to the elongated housing so that the pH sensor is exposed via the first opening, the cover covering the cutout so as to hermetically seal the opening into the internal cavity. | 02-11-2010 |
| 20110140703 | AMORPHOUS IROX FILM PH SENSOR - The present invention provides a pH sensing apparatus that includes a flexible polymer substrate, one or more amorphous iridium oxide film sensor electrodes disposed on the flexible polymer substrate, and a reference electrode corresponding to each amorphous iridium oxide film sensor electrode. Each reference electrode is disposed on the flexible polymer substrate in close proximity to the corresponding amorphous iridium oxide film sensor electrode. The amorphous iridium oxide film sensor electrodes provide a potential in reference to the reference electrodes that varies according to a pH of a substance contacting the amorphous iridium oxide film sensor electrodes and the reference electrodes. | 06-16-2011 |
| 20120098544 | Reference Electrode and Combined Electrode - A reference electrode comprises an outside wall which acts as a boundary between electrolyte and sample solution, which outside wall comprises a resin which is ionically conducting, non-porous and salt-loaded, and a barrier through which no electrochemical communication between the electrolyte and sample solution is possible. A window is present in said barrier thereby allowing electrochemical communication between the electrolyte and the sample solution through the resin at said window. The reference electrode can be suitable for use with a separate measuring electrode, or can be combined with a measuring electrode in a single unit electrode assembly. | 04-26-2012 |
| 20120212234 | WATER ANALYSIS MEASUREMENT ARRANGEMENT - A water analysis measurement arrangement for determining a concentration of ions and/or ionic compounds in an aqueous medium includes a closed buffer solution housing comprising a pH buffer solution. The closed buffer solution housing is configured to communicate with the aqueous medium via an electrolyte bridge. A reference electrode is arranged in the closed buffer solution housing. An amplifier ground is disposed on a ground electrode and is configured to directly contact the aqueous medium. A high-impedance amplifier comprises a first capacitive element arranged between the reference electrode and the amplifier ground. An AC voltage generator is arranged between the amplifier ground and the ground electrode. A measurement electrode is configured to directly contact the aqueous medium. A redundant unit comprises a separate low-impedance redundant electrode arranged in the closed buffer solution housing and a high-impedance redundant electrode amplifier comprising a second capacitive element to the amplifier ground. | 08-23-2012 |
| 20140132275 | DETERMINATION OF ISOELECTRIC POINTS OF BIOMOLECULES USING CAPACITIVE SENSORS - A mechanism is provided for determining an isoelectric point of a molecule. A first group of capacitance versus voltage curves of a capacitor is measured. The capacitor includes a substrate, dielectric layer, and conductive solution. The first group of curves is measured for pH values of the solution without the molecule bound to a functionalized material on the dielectric layer of the capacitor. A second group of capacitance versus voltage curves of the capacitor is measured when the molecule is present in the solution, where the molecule is bound to the functionalized material of the dielectric layer of the capacitor. A shift is determined in the second group of curves from the first group of curves at each pH value. The isoelectric point of the molecule is determined by extrapolating a pH value corresponding to a shift voltage being zero, when the shift is compared to the pH values. | 05-15-2014 |
| 20140132276 | DETERMINATION OF ISOELECTRIC POINTS OF BIOMOLECULES USING CAPACITIVE SENSORS - A mechanism is provided for determining an isoelectric point of a molecule. A first group of capacitance versus voltage curves of a capacitor is measured. The capacitor includes a substrate, dielectric layer, and conductive solution. The first group of curves is measured for pH values of the solution without the molecule bound to a functionalized material on the dielectric layer of the capacitor. A second group of capacitance versus voltage curves of the capacitor is measured when the molecule is present in the solution, where the molecule is bound to the functionalized material of the dielectric layer of the capacitor. A shift is determined in the second group of curves from the first group of curves at each pH value. The isoelectric point of the molecule is determined by extrapolating a pH value corresponding to a shift voltage being zero, when the shift is compared to the pH values. | 05-15-2014 |
| 20140139231 | Method for Detecting Chemical and Physical Phenomenon, and Device Therefor - Provided are a device for detecting chemical and physical phenomenon suitable for high integration, and a method therefor. Rather than using a TG section signal to select pixels that require charge measurement, the on-off timing (the timing for moving the charge from a sensing section to an FD section) of the TG section is harmonized for all pixels, and the release or injection of the charge to the sensing section is separately controlled, whereby the charge is held only in sensing sections of pixels that require charge measurement, and the charge is emptied in sensing sections of pixels that do not require charge measurement. In this state, the TG section of all pixels can be opened at the same time, whereby the charge is transferred to the FD section from only the sensing sections holding a charge, and the charge level of the pixel is detected. | 05-22-2014 |
| 20160097736 | ION-SENSING CHARGE-ACCUMULATION CIRCUITS AND METHODS - An ion-sensitive circuit can include a charge accumulation device, to accumulate a plurality of charge packets as a function of an ion concentration of a fluid, and at least one control and readout transistor, to generate an output signal as a function of the accumulated plurality of charge packets, the output signal representing the ion concentration of the solution. The charge accumulation device can include a first charge control electrode above a first electrode semiconductor region, an electrically floating gate structure above a gate semiconductor region and below an ion-sensitive passivation surface, a second charge control electrode above a second electrode semiconductor region, and a drain diffusion region. The first control electrode can control entry of charge into a gate semiconductor region in response to a first control signal. The ion-sensitive passivation surface can be configured to receive the fluid. The second charge control electrode can control transmission of the plurality of charge packets out of the gate semiconductor region and into the drain diffusion region in response to a second control signal. The drain diffusion region can receive the plurality of charge packets from the gate semiconductor region via the second electrode semiconductor region. | 04-07-2016 |
| 20160103086 | SENSOR DEVICE - A sensor device includes a first electrode, a second electrode, and a functional element. The first electrode includes a porous body having holes in at least the vicinity of a surface of the first electrode, and includes a first metallic material in which either a first passivation film is formed on the surface or the first passivation film present on the surface is lost. The second electrode spaced apart from the first electrode includes a porous body having holes in at least the vicinity of a surface of the second electrode. The functional element is configured to measure a difference in electric potential between the first and second electrodes. A porosity of the first electrode and a porosity of the second electrode are different from each other. The sensor device is configured to measure a state of a site to be measured based on the difference in electric potential. | 04-14-2016 |
