| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 324457000 | ELECTROSTATIC FIELD | 34 |
| 20100156428 | FOIL-LEAF ELECTROMETER FOR STATIC FIELD DETECTION WITH PERMANENTLY SEPARATING LEAVES - An apparatus for detecting a static field includes two surfaces of conductive material that are (i) electrically coupled to each other, and adjacent to each other. The two surfaces repel each other in the presence of a static field. The conductive material has a deformation property such that stress caused by repulsion of the two surfaces from each other by at least a predetermined distance causes at least one of the surfaces to permanently deform. | 06-24-2010 |
| 20090195254 | Method for Assessment of Electrostatic Properties of Fibers or Substrates - Method for assessment of electrostatic properties of fibers or substrates, this method being particularly useful for demonstrating the efficacy of a composition for minimizing the accumulation of particles onto fiber or substrate. | 08-06-2009 |
| 20090195253 | Method for Assessment of Electrostatic Properties of Fibers or Substrates - Method for assessment of electrostatic properties of fibers or substrates, this method being particularly useful for demonstrating the efficacy of a composition for minimizing the accumulation of particles onto fiber or substrate, and for supporting advertising claims about this efficacy. | 08-06-2009 |
| 20090121723 | ELECTROSTATIC DISCHARGE DEVICE TESTING SYSTEM AND METHOD - There is disclosed an electrostatic discharge (ESD) device tester and a method of operating the tester. In an embodiment, the method comprises operating the tester by uniquely identifying an ESD device to be tested using identification means provided on the tester; taking at least one test measurement of the uniquely identified ESD device using testing means provided on the tester, the testing means being configurable in dependence upon data associated with the uniquely identified ESD device; and storing the at least one test measurement in a storage means provided in the tester. A running average of test measurements for the uniquely identified ESD device may be stored on the tester in order to compare a test measurement against the running average. A test is repeated if a test measurement falls outside of a predetermined range of the running average. | 05-14-2009 |
| 20100073006 | Apparatus and Method of Charge Induction for Cable to System Testing - The present invention is directed to an apparatus that minimizes the effects of hand capacitance on a cable, the apparatus also being configured to generate and induce a charge, wherein the charge couples a capacitance to the cable, the capacitance matching a typical capacitance that a hand couples to a cable. The present invention is also generally directed to a method of performing a cable to electronic system electrostatic discharge immunity test. | 03-25-2010 |
| 20090121722 | Method for Assessing the Suitability of Metered Dose Inhaler Actuators - A method of assessing the suitability of a metered dose inhaler actuator A test canister equipped with a valve and containing a pressurized propellant is provided. One or more actuators manufactured for use in a metered dose inhaler is provided and tested, wherein each actuator is tested by coupling the canister to the actuator, positioning the actuator with respect to an electrostatic measurement device and firing the canister such that electrostatic charge from an aerosol emitted by the canister is measured by the electrostatic measurement device. The measured electrostatic charge is compared to a predetermined specification range to make a determination whether the measured electrostatic charge is within or outside the predetermined specification range and accordingly whether the actuator is or is not acceptable. | 05-14-2009 |
| 20090309605 | ELECTRIC POTENTIAL SENSOR - The present invention provides an electric potential sensor for the measurement of potentials non-invasively. The sensor comprises at least one detection electrode arranged for capacitive coupling with a sample under test and for generating a measurement signal, and a sensor amplifier adapted to receive the measurement signal as input and to supply an amplified detection signal as output. Input impedance enhancing means are included for providing a high input impedance to the sensor amplifier for increasing the sensitivity of the electrode to reduced electric potentials, and a discrete pre-amplifier stage is arranged to co-operate with the sensor amplifier to reduce the input capacitance of the amplifier. | 12-17-2009 |
| 20090045816 | ELECTROMETER WITH IN-MEASUREMENT RANGE ADJUSTMENT AND METHODS THEREOF FOR MEASURING ELECTROSTATIC CHARGE - An electrometer is disclosed. The electrometer has a high gain differential amplifier having a first input, a second input, and an output. The electrometer also has feedback switching circuitry. The electrometer further has a plurality of feedback elements configured to be selectively and cumulatively added in any parallel combination between the output and the first input of the high gain differential amplifier via the feedback switching circuitry. A method of adjusting a measurement range of an electrometer while the electrometer is being used to measure an electrostatic charge is also disclosed. One or more additional feedback elements are selectively added in parallel with one or more existing feedback elements which are coupled between an output and an input of a high gain differential amplifier of the electrometer. | 02-19-2009 |
| 20130069665 | USING A FIELD EFFECT DEVICE FOR IDENTIFYING TRANSLOCATING CHARGE-TAGGED MOLECULES IN A NANOPORE SEQUENCING DEVICE - A detector apparatus includes a field-effect transistor configured to undergo a change in amplitude of a source-to-drain current when at least a portion of a charge-tagged molecule translocates through the nanopore. In some implementations, the field-effect transistor is a carbon nanotube field effect transistor and the nanopore is located in a membrane. In other implementations, the field-effect transistor is a carbon nanotube field effect transistor and the nanopore is implemented in the form of a nano-channel in a semiconductor layer. | 03-21-2013 |
| 20090115422 | JIG FOR DETECTING POSITION - A transfer point of a transfer arm is detected accurately and stably by using a position detecting wafer having an electrostatic capacitance sensor. A position detecting wafer S is formed in a wafer shape transferable by a transfer arm | 05-07-2009 |
| 20130069664 | INDIRECT NON-CONTACT HIGH VOLTAGE MEASUREMENT ON ELECTRICAL POWER LINE - A non-contact electrical power line voltage measurement device comprises a probe including an insulated shield supporting an electrode to sense electrostatically induced voltage from the power line. The shield houses a high voltage resistor connected in series with the electrode. A meter comprises a housing operatively associated with the shield and enclosing a measurement circuit electrically connected to the high voltage resistor for measuring induced electrode voltage. A calibration circuit correlates measured electrode voltage to power line voltage. A display is driven by the measurement circuit for displaying actual power line voltage responsive to the electrode being a select distance from the power line. | 03-21-2013 |
| 20080197853 | Electric field probe - This is an electronic scanning probe, preferably made up of at least two sensing elements, each sensing element substantially surrounded by reference electrodes. These sensing elements are separated at a distance that causes little or no cross-interference to take place between these sensing elements when positioned in concert with a surface of interest. Ideally, this probe is used in electrostatic marking systems where an electrostatic charge is placed onto a receiving surface. | 08-21-2008 |
| 20110148427 | TRIBOCHARGE TEST FIXTURE - A fixture can include a test fixture that holds an object whose electrostatic charge characteristics are to be measured, means for moving a piece of rubbing material into contact with the object, and means for rubbing a surface of the object. A method for measuring the electrostatic charge characteristics of an object using a test fixture can include: placing the object in the test fixture, moving a piece of rubbing material into contact with the object and rubbing a surface of the object with the piece of rubbing material for a period of time. The rubbing causes an electrostatic charge to be built up on the surface of the object. The electrostatic charge characteristics of the object can be measured and the measured electrostatic charge characteristics of the object can be displayed. | 06-23-2011 |
| 20090167313 | ELECTROSTATIC DISCHARGE EVENT AND TRANSIENT SIGNAL DETECTION AND MEASUREMENT DEVICE AND METHOD - An electrostatic discharge (ESD) event and transient signal detection and measurement device and method are described. The device and method are able to distinguish between an ESD event and other non-ESD events. | 07-02-2009 |
| 20080246490 | METHODS AND APPARATUS FOR AN IN-FLIGHT PRECIPITATION STATIC SENSOR - A precipitation static sensor includes a bottom flexible dielectric layer (e.g., a layer of urethane tape) configured to be attached to a wing or other external surface of an aircraft, a flexible conductive layer (e.g., a layer of aluminum tape) formed over a portion of the first flexible dielectric layer, and a conductor (such as a twisted-pair wire) coupled to the flexible conductive layer. A top flexible dielectric layer is formed over a portion of the bottom dielectric layer and a portion of the flexible conductive layer, thus forming an exposed detector region. In accordance with a further embodiment, multiple such precipitation static sensors are used and coupled to a meter device (e.g., a picoammeter), which may also be coupled to a data acquisition and display for providing a visual indication of the charge accumulated by the precipitation static sensors. | 10-09-2008 |
| 20080238433 | Sensor Product for Electric Field Sensing - A sensor product for electric field sensing. The sensor includes a substrate, at least one electrically conductive area on the surface of the substrate, an output, and at least one conductor between the at least one electrically conductive area and the output. Also a sensor product web. | 10-02-2008 |
| 20080284445 | POTENTIAL MEASUREMENT APPARATUS AND IMAGE FORMING APPARATUS - A potential measurement apparatus is provided which can suitably maintain the oscillation state of an oscillator including a detection electrode and stably measure the potential of a measurement object. The potential measurement apparatus includes a bearing part, an elastic supporting part supported by the bearing part, an oscillator movably supported by the elastic supporting part, detection electrodes installed in the oscillator, a drive mechanism driving the oscillator and a signal detection unit. The signal detection unit is connected to the detection electrodes to detect electrical signals appearing in the detected electrodes. A stress detecting element for generating an electric signal according to the stress of the elastic suspension part | 11-20-2008 |
| 20080284446 | Determination of Field Distribution - A method for determining field intensity for a particle on a substrate, the method comprising providing an incident wave, determining an electric vector of the field and a magnetic vector of the field inside and outside of the particle, and determining additional scattered fields inside and outside of the particle due to reflection of the incident wave from the substrate. | 11-20-2008 |
| 20080265902 | SPECIFIC ABSORPTION RATE MEASUREMENT SYSTEM AND METHOD - A disclosed specific absorption rate measurement system according to an embodiment of the present invention measures a specific absorption rate of electromagnetic waves from a radiating source absorbed in a dielectric medium. The system includes a measurement portion that measures a first electric field vector on an observation surface which is a two-dimensional surface in the dielectric medium; an electric field calculation portion that calculates a second electric field vector in a point excluded from the observation surface in accordance with electric field components of the first electric field vector measured on the observation surface, the electric field components being parallel to the observation surface; and a calculation portion that calculates the specific absorption rate from the calculated second electric field vector. | 10-30-2008 |
| 20090015263 | Ion Control Sensor - A static electricity removal device that removes static electricity by supplying positive and negative ions to a target of static electricity removal, comprising a surface potential measuring probe that measures a surface potential of the target of static electricity removal, wherein a potential detector ( | 01-15-2009 |
| 20110025339 | MAGNETORESISTIVE ELELCTROSTATIC DISCHARGE (ESD) DETECTOR - A magnetoresistive electrostatic discharge (ESD) event detector includes at least one magnetoresistive device. The at least one magnetoresistive device detects an ESD event in an ESD sensitive device based on magnetoresistive properties of the at least one magnetoresistive device. The at least one magnetoresistive device comprises an ESD failure level that is lower than the ESD failure level of said ESD sensitive device. | 02-03-2011 |
| 20090027057 | Ethernet Electrometer - An electrometer includes an input terminal adapted to receive an input signal an ethernet terminal, a web server, and a microcontroller. The ethernet terminal is adapted to receive an ethernet cable such that electrical power is provided to the ethernet terminal. The web server is in electrical communication with the ethernet terminal, and is adapted to receive a command. The microcontroller is in electrical communication with at least one of the ethernet terminal and the web server, and is adapted to execute the received command. | 01-29-2009 |
| 20080218172 | POTENTIAL MEASURING APPARATUS - A potential measuring apparatus has a detection electrode on which an electric charge is induced according to a potential of a detection object, and a modulator for altering the generated quantity of the electric charge. The detection electrode has at least one depressed portion on a surface opposite to the detection object. | 09-11-2008 |
| 20080303530 | Electrostatic Sensor - An electrostatic sensor generally includes a sensor head with at least one passive sensing electrode responsive to an electric field and a high-impedance amplification stage associated with the sensing electrode. The high-impedance amplification stage is configured for outputting at least one output signal in response to an electric signal induced on the at least one sensing electrode by the electric field. The sensor head further includes a screen of electrically insulating material, which is associated with the at least one sensing electrode. In an operational mode of the electrostatic sensor, the screen is electrically charged and induces an electric field in the surroundings of the sensing electrode. | 12-11-2008 |
| 20120206147 | ELECTROSTATIC CAPACITIVE SENSOR - An electrostatic capacitive sensor able to detect a first electrostatic capacitance and a second electrostatic capacitance, comprising: a member wherein is formed a movable diaphragm that has electrical conductivity; a thin-film electrode that forms a first electrostatic capacitance with the diaphragm; a thin-film electrode that forms a second electrostatic capacitance with the diaphragm; an upper member that is provided so as to form a space between itself and the top face of the diaphragm; and a tower member that is provided so as to form a second space between itself and the bottom face of the diaphragm; wherein: a gas is filled into the space and another gas, which has a coefficient of thermal expansion different from that of the gas, is filled into the second space. | 08-16-2012 |
| 20120161777 | OCCUPANT DETECTION APPARATUS, OCCUPANT DETECTION METHOD AND VEHICLE - An occupant detection apparatus includes an electrostatic capacitance type sensor having a main electrode, a sub electrode and a guard electrode, an impedance measurement device that outputs an alternating current signal to measure an impedance, and an occupant discrimination device that discriminates an occupant. | 06-28-2012 |
| 20090309604 | Electrostatic monitoring system - An electrostatic monitoring system for detecting a risk of electrostatic discharge is used to detect conditions under which electrostatic discharge is likely, at distances sufficient to provide the time needed to take corrective action and mitigate any harmful effects. The system monitors electrostatic discharge conditions in the order of a few meters away, and preferably determines the direction of maximum hazard. By the invention, personnel can be screened upon entering a vulnerable area, sensitive equipment can be protected by placing sensors on the equipment to detect the risk of electrostatic discharge due to the local static potential and to preemptively turn off the equipment, and wearable sensors can be installed in clothing of personnel working in environments with high electrostatic hazard to protect both personnel and equipment. | 12-17-2009 |
| 20120092019 | Electric Field Signature Detection Using Exciter-Sensor Arrays - An electric field signature detector for detecting and identifying objects that uses multiple electrostatic sensor nodes each having a passive sensing electrode whose free conduction electrons are displacement responsive to an externally applied or sensed electric field potential, and a transimpedance converter and amplifier exhibiting ultra-high input impedance for translating low level input displacement current from a sensing electrode into a useable output signal in response to a charge displacement signal induced on the passive sensing electrode by an external electric field. The electric field signature detector further includes an exciter for providing a reference electric field used in the retrieval and processing of an electric field signature representative of an object and class of object under investigation. The electric field signature detector having uses including military, security, anti-terrorist, and defense related. | 04-19-2012 |
| 20100259272 | SENSOR ARRANGEMENT - Utilisation of electrostatic sensor elements is known in relation to obtaining images from a surface such as that of a patient with regard to anomalies including carcinomas. Electrostatic sensor elements, by their nature, are susceptible to creating spurious results in terms of their location with respect to the surface of the subject to be viewed. By providing a visual camera within an array of electrostatic sensor elements the electrostatic charge distribution image is provided by the camera. The image can be overlaid and married with the visual image in a proportionate ratio. In such circumstances an improved final image is provided with inherent visual references to allow analysis of the combined rich display image. A visual camera such as a CCD is used as it is substantially of the same size as the electrostatic sensor elements. | 10-14-2010 |
| 20130009647 | SENSOR DEVICE - A sensor device includes a first electrode, a second electrode, a gap forming member and a functional element. The first electrode is composed of a first metallic material. The second electrode is spaced apart from the first electrode, and composed of a second metallic material. The gap forming member is arranged with a gap being formed between the gap forming member and a portion of a surface of the first electrode. The functional element is configured and arranged to measure a difference in electric potential between the first electrode and the second electrode so that a state of a measurement site to be measured is measured based on the difference in electric potential as measured by the functional element. | 01-10-2013 |
| 324458000 | Using modulation-type electrometer | 4 |
| 20080238434 | Surface voltmeter - In a surface voltmeter ( | 10-02-2008 |
| 20100156429 | MEMS ELECTROMETER THAT MEASURES AMOUNT OF REPULSION OF ADJACENT BEAMS FROM EACH OTHER FOR STATIC FIELD DETECTION - An apparatus for detecting a static field includes a microelectromechanical systems (MEMS) device having two cantilevered beams of conductive material that are adjacent and substantially parallel to each other. The two beams repel each other in the presence of a static field. At least one sensor detects a respective amount of displacement of the two cantilevered beams from a rest position and determines an amount of repulsion of the two cantilevered beams from each other. | 06-24-2010 |
| 20110316550 | ION ANALYZING APPARATUS AND ION ANALYZING METHOD - An ion analyzing apparatus includes a sensor; a counter electrode having openings, the counter electrode being positioned so as to substantially surround the sensor; and a bias generating circuit coupled to the sensor, wherein the sensor includes quartz crystal and a pair of electrodes positioned on surface of the quartz crystal, and one of the pair of electrodes is coupled to the bias generating circuit. | 12-29-2011 |
| 20120119750 | Container for Measuring Cell Potential - A cellular electric potential measuring container includes a container body and an electrode substrate, the electrode substrate being attached to a lower end of the container body so as to form a plurality of wells. The container body is made from resin and comprises a plurality of tubular portions whose upper and lower ends are open, each of the tubular portions comprises in an inner cavity a measurement portion tapered toward the lower end and having a measurement hole at the lower end, and further on an inner wall at least two retaining means retaining the measurement portion. The electrode substrate comprises a substrate body, with a plurality of measurement electrodes and a plurality of reference electrodes being disposed on one surface of the substrate body. The container body is attached to the surface of the substrate body on which the measurement electrodes and the reference electrodes are disposed, such that the measurement electrodes are exposed through the measurement holes. | 05-17-2012 |
