Class / Patent application number | Description | Number of patent applications / Date published |
324114000 | Plural meters (e.g., plural movements in one case) | 23 |
20090079418 | Systems and Methods for Monitoring Voltage - Methods and systems for monitoring voltage are disclosed, including: a plurality of circuit points, a first bus configured to electrically couple to a voltage measurement device, a first set of switches configured to selectively electrically couple a first subset of the circuit points to the first bus, at least one other bus configured to electrically couple to at least one of: the voltage measurement device and another voltage measurement device, and at least one other set of switches configured to selectively electrically couple at least one other subset of the circuit points to the other bus. | 03-26-2009 |
20090102455 | Digital multimeter having hinged shield arrangement - A multimeter comprises a case having a circuit board located therein. The circuit board has a top side and a bottom side. A shield arrangement is configured to cover at least a portion of the top side and the bottom side of the circuit board. The shield arrangement includes a top shield part adjacent to the top side of the circuit board and a bottom shield part adjacent to the bottom side of the circuit board. The shield arrangement also includes a connecting structure by which the top shield part is interconnected with the bottom shield part. The connecting structure preferably forms at least one hinge configured such that the top shield part and the bottom shield part can be moved between open and closed configurations. Often, a plurality of hinges will be provided. | 04-23-2009 |
20090146642 | Instrumentation Device and Interface Combining Multiple Elements - An instrumentation device having multiple elements includes at least one power supply module, a plurality of test and measurement instruments operatively coupled to the at least one power supply module and a user interface configured to select the at least one power supply module and to select at least one of the plurality of test and measurement instruments to provide power supply functionality and test and measurement functionality. | 06-11-2009 |
20090174393 | APPARATUS, SYSTEM, AND METHOD DETERMINING VOLTAGE, CURRENT, AND POWER IN A SWITCHING REGULATOR - An apparatus, system, and method are disclosed for measuring voltage, current, and power in a power supply. The apparatus consists of a voltage measuring module which measures the peak voltage through an inductor in a switching power supply stage of the power supply for a portion of the switching period. A current measuring module measures the peak current in the switching power supply stage for a portion of the switching period. The measured currents and voltages are proportional to the voltage and current at a point in the power supply where a power measurement is desired. The voltage and current values are multiplied along with a constant to provide an accurate measure of the power at a point in the power supply. The constant generally includes a combination of a calibration constant, an RMS conversion factor, a voltage conversion factor, and a current conversion factor. | 07-09-2009 |
20090206823 | Multi-meter test lead probe for hands-free voltage measurement of control panel industrial terminal blocks - An electrical test lead probe for use with a multi-meter provides for releasable retention in and electrical contact with a terminal of an industrial terminal block. The test lead probe includes a shortened body having an electrically conducting tip that is configured for releasable receipt into a terminal block socket of an industrial terminal block, the terminal block socket housing a terminal of the terminal block. The present terminal block probe, in one form, is permanently attached to a multi-meter test lead. In another form, the present terminal block probe is coupled to a modular multi-meter test lead. In yet another form, the present terminal block probe has a removable head incorporating an electrically conducting tip wherein the body is permanently attached to a multi-meter test lead. In a modular form, a plurality of terminal block probes may be provided each one of which has an electrically conducting tip of a different configuration corresponding to different configurations and/or sizes of industrial terminal block sockets. | 08-20-2009 |
20100045262 | APPARATUS AND METHOD OF ZEROING A TEST INSTRUMENT - An apparatus and method for shorting together a plurality of electrical leads. The apparatus includes an electrical conductor that extends between first and second ends and a first surface and a second surface facing away from the first surface. The electrical conductor includes a central bight that is disposed between the first and second ends and has a concave contour that defines a portion of the first surface. The electrical conductor also includes first and second bights that have convex contours that define portions of the first surface. The first bight is disposed between the central bight and the first end and the second bight is disposed between the central bight and the second end. The electrical conductor also includes a first and second contact segments that are respectively disposed between the first and second bights and the first and second ends. | 02-25-2010 |
20100090682 | Multi-Meter Test Lead Probe For Hands-Free Electrical Measurement of Control Panel Industrial Terminal Blocks - An electrical test lead probe for use with a multi-meter provides for releasable retention in and electrical contact with a terminal of an industrial terminal block. The test lead probe includes a self-adjoining electrically conducting tip that is configured for automatic releasable receipt into a terminal block socket of various styles of terminal blocks, the terminal block socket housing a terminal of the terminal block. The present terminal block probe, in one form, is permanently attached to a multi-meter test lead. In another form, the present terminal block probe is coupled to a modular multi-meter test lead. In yet another form, the present terminal block probe has a removable head incorporating an electrically conducting, self-adjoining tip wherein the body is permanently attached to a multi-meter test lead. In a modular form, a plurality of terminal block probes may be provided each one of which has an electrically conducting tip of a different configuration corresponding to different configurations and/or sizes of terminal block sockets. | 04-15-2010 |
20100176792 | APPARATUS AND METHOD OF ZEROING A TEST INSTRUMENT - An apparatus and method for shorting together a plurality of electrical leads. The apparatus includes an electrical conductor that extends between first and second ends and a first surface and a second surface facing away from the first surface. The electrical conductor includes a central bight that is disposed between the first and second ends and has a concave contour that defines a portion of the first surface. The electrical conductor also includes first and second bights that have convex contours that define portions of the first surface. The first bight is disposed between the central bight and the first end and the second bight is disposed between the central bight and the second end. The electrical conductor also includes a first and second contact segments that are respectively disposed between the first and second bights and the first and second ends. | 07-15-2010 |
20110012587 | CLAMP-ON MULTIMETERS INCLUDING A ROGOWSKI COIL FOR MEASURING ALTERNATING CURRENT IN A CONDUCTOR - A clamp-on multimeter measures alternating current flow in an electrical conductor. The multimeter includes a display, a housing including the display, a first sensor, a second sensor, a processor and an integrator. The first sensor has a magnetizable material core and inductively senses the alternating current. The first sensor includes a first clamp portion fixed to the housing and a second clamp portion pivotally coupled to the first clamp portion. The second sensor includes a Rogowski coil that has a non-magnetic core and inductively senses the alternating current. The processor receives an input signal in a first voltage range and sends an output signal to the digital display. The integrator scales a signal from the second sensor in a second voltage range to the first voltage range. The housing includes the processor, the integrator, and a selector configured to select the input signal to the processor from one of the first sensor and the integrator. | 01-20-2011 |
20110074395 | DIGITAL MULTIMETERS INCLUDING A REMOTE DISPLAY - A digital multimeter includes a body having a function selector and a first coupler and includes a head having a display and a second coupler. The function selector selects a parameter to be measured, and the display displays a measurement corresponding to the parameter to be measured. The first and second couplers are engaged in a first arrangement joining the body and the head, and the first and second couplers are disengaged in a second arrangement separating the body and the head. | 03-31-2011 |
20110193548 | SEPARATION-TYPE AVOMETER - A separation-type avometer includes a manipulation device and a measurement main body. The manipulation device includes a selection module, a first wireless module, and a window module. The measurement main body includes a measurement module, a second wireless module, and an automatic determining and switching module. The first wireless module transmits a measurement mode selected through the selection module to the second wireless module of the measurement main body. The automatic determining and switching module switches the measurement mode of the measurement module according to the selected measurement mode. After the measurement is completed, the second wireless module transmits signal data measured by the measurement main body to the first wireless module of the manipulation device, so as to use the window module to display the signal data measured by the measurement main body. | 08-11-2011 |
20110234203 | VOLTAGE DETECTION CIRCUIT AND METHOD THEREOF - A voltage detection circuit comprises a plurality of even-number voltage detection nodes, at least one odd-number voltage detection node, a voltage differential generation circuit, a selection circuit and a computing circuit. The selection circuit is for controlling the coupling relationship between the voltage differential generation circuit and the even and odd-number voltage detection nodes, so that the voltage differential generation circuit generates a voltage differential between the nodes. The computing circuit knows a voltage of a first even-number voltage detection node being as a reference voltage or obtains the voltage of the first even-number voltage detection node on the basis of the reference voltage, and respectively obtains a voltage of the nodes on the basis of the voltage differential between two adjacent nodes and the obtained voltage of a first even-number voltage detection node. | 09-29-2011 |
20110267033 | LOW NOISE READING ARCHITECTURE FOR ACTIVE SENSOR ARRAYS - A sensor apparatus includes an array of active sensor elements arranged in columns and rows. Each sensor element is associated with a thin film access device disposed in a first current path through which an activation current is provided to activate the sensor element. Each sensor element is read through a respective second current path. The second current paths do not include the thin film access device of the first current path. As such, noise from the thin film access device is isolated from the second current paths. | 11-03-2011 |
20120007586 | Surfaces with Embedded Sensing and Actuation Networks Using Complementary-Metal-Oxide-Semiconductor (CMOS) Sensing Chips - A device and method for area sensing and actuation comprises highly scalable sensing and actuation network that can control a high density of sensing and actuation elements over a physical area. The device comprises a matrix of CMOS sensing chips that each comprise a plurality of sensing electrodes arranged in a matrix of columns and rows along horizontal wires and vertical wires. The vertical wires carry an activation signal to activate a column of sensing electrodes, and the vertical wires carry sensing and actuation signals between the column of sensing electrodes and a processing chip. The signals may be amplified by CMOS sensing chips between the source and destination of the signals. In this way, signals may be received from and sent to a dense matrix of sensing electrodes spanning a large geographic area with little or no degradation. | 01-12-2012 |
20120112736 | APPARATUS AND METHOD FOR TESTING DRIVER WRITEABILITY STRENGTH ON AN INTEGRATED CIRCUIT - An apparatus and method for testing driver write-ability strength on an integrated circuit includes one or more drive detection units each including a number of drivers. At least some of the drivers may have a different drive strength and each may drive a voltage onto a respective driver output line. Each drive detection unit may include a number of keeper circuits, each coupled to a separate output line and configured to retain a given voltage on the output line to which it is coupled. Each detection unit may also include a number of detection circuits coupled to detect the drive voltage on each of the output lines. In one implementation, the drive voltage appearing at the output line of each driver may be indicative of that the driver was able to overdrive the voltage being retained on the output line to which it is coupled by the respective keeper circuits. | 05-10-2012 |
20130214764 | Digital Multimeters Including A Remote Display - A digital multimeter includes a body having a function selector and a first coupler and includes a head having a display and a second coupler. The function selector selects a parameter to be measured, and the display displays a measurement corresponding to the parameter to be measured. The first and second couplers are engaged in a first arrangement joining the body and the head, and the first and second couplers are disengaged in a second arrangement separating the body and the head. | 08-22-2013 |
20130214765 | MULTIFUNCTIONAL MEASURING DEVICE - A multifunctional measuring device, such as for measuring a current in a primary current conductor in a medium voltage switchgear is disclosed which includes a housing with an aperture for accommodation of the primary current conductor; an inner winding accommodated around the aperture inside of the housing for a measurement of current in a primary current conductor; and an external winding wound on the housing around the aperture for another current measurement. | 08-22-2013 |
20130271115 | POWER SUPPLY EFFICIENCY MEASUREMENT DEVICE - A power supply efficiency measurement device includes a power meter and an adapter. The power meter includes an ammeter and a voltmeter. The adapter includes a live line connector, a neutral line connector, and two voltage test connectors. The live line connector electrically connects a load with a live line of a power supply, the neutral line connector electrically connects the load with a neutral line of the power supply, and the two voltage test connectors are electrically connected to the live line connector and the neutral line connector respectively. The ammeter is electrically connected between the live line connector and the power supply by the live line, and the voltmeter is electrically connected to both the two voltage test connectors. | 10-17-2013 |
20130271116 | COMBINED MEASURING AND DETECTION SYSTEM - A combined measuring and detection system is disclosed which includes an electronic evaluation unit for analyzing a broad frequency spectrum of measured quantities and one or more measuring devices for measurement of one or more of a magnetic field, an electric field, a current, and a voltage. The measuring devices are operatively connected to the electronic evaluation unit, which is provided with at least one frequency splitter dividing the measured quantities into a low frequency component and into a high frequency component. Low frequency components are used for measurement and protection analysis and high frequency components are used to detect partial discharges activity. | 10-17-2013 |
20140300345 | INTELLIGENT MAGNETIC LATCHING MINIATURE CIRCUIT BREAKER - This invention discloses a type of intelligent magnetic-hold miniature circuit breaker, comprising a casing, a magnetic-hold relay, and a drive circuit, wherein said drive circuit receives control signal and then drives operation of said magnetic-hold relay; said magnetic-hold relay comprises a dynamic spring assembly, a static spring assembly, a deflector rod, a pushing piece, and a magnetic steel assembly. Said miniature circuit breaker also includes a central processor, a communication chip, and a metering module. Said metering module is used to measure power, voltage, and current, and transmit the data to said central processor. This invention breaks through traditional miniature circuit breaker design concept and integrates magnetic-hold relay, central processor, current transformer, metering chip, and communication chip in the casing so that this miniature circuit breaker features protection, metering, control, and communication functions. | 10-09-2014 |
20150022181 | Analytical Gateway Device for Measurement Devices - An analytical gateway device receives measurement data comprising one or more measurement values from one or more measurement devices. The gateway device selects a measurement application from a plurality of measurement applications available for execution (e.g., on the gateway device or some other computing device) based at least in part on the measurement data. For example, the measurement application can be selected based on measurement type information. The measurement type information may include one or more measurement units associated with the measurement values. The gateway device may cause a user interface (or some other information) associated with the measurement application to be presented on a display (e.g., a display of the gateway device or some other computing device in communication with the gateway device). | 01-22-2015 |
20150316589 | RECEPTACLE INDICATING RELATIVE LEVEL OF CURRENT OR ENERGY - A smart receptacle is for a number of loads. The smart receptacle includes separable contacts; an operating mechanism structured to open and close the separable contacts; and a number of current sensors structured to sense current flowing through the separable contacts to one of the number of loads. A number of indicators indicate a relative level of the sensed current or corresponding energy. A processor inputs the sensed current, determines the relative level of the sensed current or the corresponding energy, and controls the number of indicators to indicate the relative level of the sensed current or the corresponding energy. | 11-05-2015 |
20160011234 | GROUND OFFSET MONITOR AND COMPENSATOR | 01-14-2016 |