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Class 324/525 - By resistance or impedance measuring


Subclass of Class 324 - Electricity: measuring and testing
Definition: Subject matter where measured resistance or impedance value
No. of patents: 302
Last issue date: 04/17/2012


1                
NumberTitleIssue Date
8159229Load compensation in distance protection of a three-phase power transmission line
A load compensation method for phase-to-ground loops in distance protection. A first reactive reach is estimated assuming zero fault resistance or with a positive sequence current. A second reactive reach is estimated with a zero sequence current. A third reactive r...
04/17/2012
8120368Method of monitoring the clean/rinse/dry processes of patterned wafers using an electro-chemical residue sensor (ECRS)
A method of improving the clean, rinse and dry processes during the manufacture of ICs, MEMS and other micro-devices to conserve solution and energy while completing the process within a specified time. An electro-chemical residue sensor (ECRS) provides in-situ and ...
02/21/2012
8089283Apparatus and method for high-speed determination of bioelectric electrode impedances
Apparatuses and methods are provided for determining electrode impedances of a bioelectric signal-monitoring/recording system that includes an amplifier, and electrodes connected between a subject and the amplifier. An example apparatus includes: a voltage source ou...
01/03/2012
8089293Test and measurement instrument and method of configuring using a sensed impedance
A test and measurement instrument including a port including a plurality of connections; an impedance sense circuit configured to sense an impedance coupled to a connection of the plurality of connections; and a controller configured to setup the test and measuremen...
01/03/2012
8076943Impedance-based arc detector for computed tomography scanner and method of use thereof
The present disclosure relates to an impedance-based arc detector for CT scanners and method of use and diagnosis therewith, and more specifically, to a two- or three-way conductive probe detector system and associated signal processing unit to distinguish the locat...
12/13/2011
8054096Device for measuring thickness and square resistivity of interconnecting lines
A microelectronic device comprising one or several metallic levels provided with one or several superposed metallic interconnecting levels and at least one test structure: at least one metallic zone formed in at least one insulatin...
11/08/2011
8049511Method of detecting faulty via holes in printed circuit boards
A method of detecting faulty via holes of a printed circuit board. The printed circuit board including a number of electric trace segments. The method includes steps of: providing a testing system, the testing system comprising a processor, a storing means and a res...
11/01/2011
7986146Method and system for detecting existence of an undesirable particle during semiconductor fabrication
One exemplary embodiment is a method for detecting existence of an undesirable particle between a planar lithographic object, such as a semiconductor wafer or a lithographic mask, and a chuck during semiconductor fabrication. The exemplary method in this embodiment ...
07/26/2011
7977949Loop resistance tester control system
A method is present for remotely controlling, monitoring, and analyzing loop resistance in a vehicle. A loop resistance test unit is positioned in the vehicle. A set of commands is sent from a monitoring unit to the loop resistance test unit over a wireless communic...
07/12/2011
7960975Method for detecting the condition of a lamp for heating blank bodies made of thermoplastic material and heating installation arranged for use thereof
The condition of a lamp (1) for heating blank bodies made of thermoplastic material, intended for the manufacture of containers by blow moulding or stretch-blow moulding, is detected. The infrared electromagnetic radiation lamp has an envelope (2) made...
06/14/2011
7956616System and method for measuring a cable resistance in a power over Ethernet application
A system and method for measuring a cable resistance in a power over Ethernet (PoE) application. A short circuit module in a powered device is designed to produce a short circuit effect upon receipt of a cable resistance detection voltage. The cable resistance detec...
06/07/2011
7932726Method of design optimization and monitoring the clean/rinse/dry processes of patterned wafers using an electro-chemical residue sensor (ECRS)
A method of improving the clean, rinse and dry processes during the manufacture of ICs, MEMS and other micro-devices to conserve solution and energy while completing the process within a specified time. An electro-chemical residue sensor (ECRS) provides in-situ and ...
04/26/2011
7932727Test structure to monitor the release step in a micromachining process
Electrical and visual test structures monitor the degree of removal of conductive sacrificial layers used in micromachining processes that fabricate micro-electromechanical systems (MEMS). ...
04/26/2011
7932728Electrical conditioning of MEMS device and insulating layer thereof
A method of fabricating a MEMS device includes conditioning of an insulating layer by applying a voltage across the insulating layer via a conductive sacrificial layer for a period of time, prior to removal of the conductive sacrificial layer. This conditioning proc...
04/26/2011
7924021Procedure for testing the function of a lamp circuit
The function of a lamp circuit is tested by measuring the current and voltage. A resistance value is taken into account which is specified as a polynomial of at least the 1st order depending on the effective measured voltage on the lamp circuit. The parameters of th...
04/12/2011
7919967Verification of a fabrication process used to form read elements in magnetic heads
Test methods and components are disclosed for testing the quality of a fabrication process used to form read elements in magnetic heads. A wafer is populated with one or more test components along with magnetic heads. The test components are formed by the same or si...
04/05/2011
7786736Method and system for detecting damage in aligned carbon nanotube fiber composites using networks
Methods and structural defect detectors for detecting a structural defect in composites are presented. An exemplary method includes forming a nanocomposite including a plurality of nanotubes mechanically aligned in a principal direction within a polymer matrix. A vo...
08/31/2010
7782062Method for locating leaks in pipes
Method for establishing and possibly locating leaks in pipelines (1) for transporting liquid or gaseous media using at least one electrical conductor (2) running along the longitudinal extension of the pipeline (1) from a starting point to an en...
08/24/2010
7750643Process and system for detecting surface anomalies
Processes and systems for detecting surface anomalies in components generally includes contacting a surface of the component with a detection apparatus, wherein the detection apparatus includes at least one post, a wire extending from the post and a sensor in operat...
07/06/2010
7646202Static measuring method of electrical references of three-phase permanent magnet synchronous motor
A method for measuring a resistance and an inductance of a permanent magnet synchronous motor (PMSM) in a static state includes inputting a rated current of the PMSM and 150% of the rated current at a state of locking an axle of the PMSM, recording corresponding vol...
01/12/2010
7639021Circuit and method for detecting a dielectric breakdown fault
An improved circuit and method for detecting dielectric breakdown and ground fault conditions is provided. The circuitry and method of the present invention include taking a continuous voltage reading of the high voltage battery and sampling the continuous voltage r...
12/29/2009
7629795Vector impedance measurement system and method of using same
A vector impedance measurement system (100) includes a first radio frequency (RF) source (101) for providing energy to a test circuit. A measurement device (111) is used for providing a first network measurement based upon the voltage and curren...
12/08/2009
7592817Alignment correction system and method of use
A system and method for correcting alignment of a product on a tool and, more particularly, to a system and method for correcting alignment of a wafer on a chuck of a tool. The system is a tool comprising at least one contact near a circumference of the tool and a g...
09/22/2009
7560935Ground-fault resistance measurement circuit and ground-fault detection circuit
There is a ground-fault resistance measurement circuit which measures a ground-fault resistance between a conductive frame body of electrical equipment and a charge section insulated from the frame body. This ground-fault resistance measurement circuit includes: a c...
07/14/2009
7459914Systems and methods for electrical leakage detection
Systems and methods are disclosed for detecting balanced electrical leakage between a power source and a machine frame. In one embodiment, a balanced fault detection system for a machine includes a power source that is electrically insulated from a machine frame and...
12/02/2008
7443308Enhanced AC immunity in ground fault detection
A method for reducing the occurrence of false ground fault detections in a central office terminal is provided. The method includes generating a no-fault signal when no ground current is detected, delaying generation of a fault signal when ground current is detected...
10/28/2008
7429867Circuit for and method of detecting a defect in a component formed in a substrate of an integrated circuit
Various embodiments of the present invention describe circuits for and methods of detecting a defect in a component formed in a substrate of an integrated circuit. According to one embodiment, a circuit comprises a plurality of components formed in a substrate and c...
09/30/2008
7423433Method and system for multi-frequency inductive ratio measurement
A method of testing a cable is provided. The method includes measuring at least one inductive ratio for the cable, determining an inductive gap from the at least one inductive ratio, measuring a parallel impedance of the cable, and determining a resistance of the ca...
09/09/2008
7405578Device for monitoring the contact integrity of a joint
The invention relates to a device that can be used to monitor the contact integrity of a joint that is of an impervious contact surface between two parts (4 and 5) including a set of conductive patterns (8) which are distributed over the two con...
07/29/2008
7391219Chip type electronic component for test, and mounted state test method
A chip type electronic component for test is provided with an element body, and four or more terminal electrodes placed on the exterior of the element body. The element body has a plurality of laminated insulator layers, and a plurality of internal electrodes arrang...
06/24/2008
7373260Sensor infrastructure
A device for use in detecting an event in a structure includes a sensor encapsulation, the encapsulation containing a sensor, an actuator positioned substantially in-plane to the sensor within the housing and a printed circuit board in communication with at least on...
05/13/2008
7372369Monitoring of alarm system wiring
A supervisory method and apparatus provide for detection of “partial fault” conditions such as a relatively high series impedance in the wiring, or a relatively low parallel impedance across the wiring. A non-linear element, such as a semiconductor diode, can be...
05/13/2008
7365546Apparatus and method for non-destructive testing of primers, in particular for airbags in motor vehicles
A measuring device and a measuring method for non-destructive testing of an ignitor installed in a subassembly, particularly of a motor vehicle. The device and measuring method generate a measuring current with a predefined value, check-test the predefined value of ...
04/29/2008
7366577Programmable analog input/output integrated circuit system
The programmable analog input/output integrated circuit system includes a plurality of integrated circuit pins, an analog input/output circuit, a control module, and a switching module. The analog input/output circuit is coupled to the plurality of pins and determin...
04/29/2008
7366623Method and apparatus for characterizing a load on a data line
A method for characterizing a load on a data line includes the steps of: (A) Applying at least three successive voltages to the data line. Each respective odd-numbered successive voltage of the at least three successive voltages has substantially a first voltage val...
04/29/2008
7345488Apparatus and method for determining a faulted phase of a three-phase ungrounded power system
Provided is an apparatus and method for determining a faulted phase resulting from a fault in a three-phase ungrounded power system. The method includes comparing a phase angle of an operating phasor to a phase angle of a fixed reference phasor. The operating phasor...
03/18/2008
7333315Secondary battery devices
A secondary battery device 1 including multiple protective circuits U1-U3 connected in parallel and each having two fuses fa, fb connected in series, wherein a terminal tc of each heater h is connected to...
02/19/2008
7323880Ground circuit impedance measurement
Novel apparatus and method accurately measure ground circuit impedance. A ground circuit and electrical current source adjusted to 25 amperes or less simulate a ground fault. Ground impedance is determined by dividing voltage drop by amperage to determine impedance ...
01/29/2008
7312608Systems and methods for inspecting electrical conductivity in composite materials
Systems and methods for inspecting electrical conductivity in composite materials having conductive structures are disclosed. In one embodiment, a system of inspecting electrical conductivity in an electrical bonding region includes a coil coupled to an alternating ...
12/25/2007
7308754Methods for trimming electrical parameters in an electrical circuit
Power supply switching regulator electrical circuit trimming methods. A trimming method includes assembling one or more components of a power supply switching regulator electrical circuit onto a printed circuit board having one or more electrical connections coupled...
12/18/2007
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