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| Number | Title | Issue Date |
| 7564250 | Pulsed methods and systems for measuring the resistance of polarizing materials A system and method for measuring resistance of a polarizing material are disclosed. The system includes a voltage divider circuit having a first resistive element of known resistance and the polarizing material of unknown resistance and a processing unit. The proce... | 07/21/2009 |
| 7218892 | Passive repeater/terminator A passive terminator between a plurality of nodes includes a first voltage divider configured to passively set a differential voltage level between a first voltage level and a second voltage level. The first voltage divider has a Thevenin resistance and is electrica... | 05/15/2007 |
| 7043386 | Potentiometer providing a high resolution A high resolution potentiometer implemented using at least two digital potentiometers connected in parallel. Each digital potentiometer is controlled to provide a corresponding resistance value, and a desired resistance value is attained by such control. The resolut... | 05/09/2006 |
| 6960922 | Apparatus for monitoring a sliding contact element in an electrical rotating machine An apparatus for monitoring a sliding contact element in an electrical rotating machine, in particular a generator, includes a holder for the sliding contact element and a sensor for detection of a state variable of the sliding contact element. An evaluation unit is... | 11/01/2005 |
| 6956384 | Linear displacement transducer with improved accuracy The present invention relates to a linear displacement transducer with improved accuracy, in which stable contact is achieved by forming contacts coming into contact with resistors in a elastic linear contact type, rather than a conventional point contact type, usin... | 10/18/2005 |
| 6943661 | Quick-connect positive temperature coefficient of resistance resistor/overload assembly and method A positive temperature coefficient of resistance resistor/overload (PTCR/OL) resistor assembly that can be quickly and easily electrically connected and disconnected from equipment without the need for special tools or equipment. In some arrangements of the present ... | 09/13/2005 |
| 6737877 | Method and circuit for reading a potentiometer Embodiments of the invention describe a method and apparatus used to determine the position of a wiper on a potentiometer without the need for an external ADC. Two capacitors are each connected to an end of a potentiometer, and then are charged or discharged simulta... | 05/18/2004 |
| 6724201 | Resistance type liquid level measuring apparatus A resistance-type liquid level measuring apparatus which suppresses a detection voltage error due to silver sulfide within a permissible range in practical use and enables measurement indication with accuracy, and comprises a resistance-type sensor including a float... | 04/20/2004 |
| 6316947 | Displacement/angular position sensor A displacement/angular position sensor including a potentiometer path (20), which is arranged on a carrier (10) and to which an alternating voltage can be applied, a collector path (30) arranged on the carrier (10), a first probe (70) guided for displacem... | 11/13/2001 |
| 6208152 | Redundant resistor matching detector with constant percentage threshold A redundant resistor matching detector is provided with constant percentage threshold. The redundant resistor matching detector includes a voltage reference and a first operational amplifier, a second operational amplifier, a first potentiometer and a ref... | 03/27/2001 |
| 6192593 | Internal shoe sizing apparatus and method for sizing shoes There is disclosed an internal sizing apparatus comprising a pneumatically activated probe that moves axially within a shoe and non-destructively measures the interior dimensions of the shoe. A linear pneumatic actuator is mounted between a heel piece and... | 02/27/2001 |
| 6184695 | Diagnostic circuit for potentiometric sensors A diagnostic circuit (18) for a potentiometric sensor (10) having an electrically resistive means (12) and a sliding contact (14) in connection with the resistive means and providing an output from the sensor at a sensor output terminal (16), the diagnost... | 02/06/2001 |
| 6181141 | Failsafe monitoring system for potentiometers and monitor interface A controller, having a microprocessor, a control potentiometer and a monitor interface circuit connected between the microprocessor and the potentiometer, operates to monitor the control potentiometer and monitor interface circuit for failures. The potent... | 01/30/2001 |
| 6173620 | Angle potentiometer A counter counts the repetitive pulse signals, a sawtooth generation circuit generates a sawtooth signal based on the count output of the counter, the amplitude and the offset of the sawtooth signal is adjusted by a resistance, and a comparing circuit com... | 01/16/2001 |
| 5684407 | Electronic circuit packaged with a position sensor A voltage follower is incorporated within a molded electrical connector interface of a position sensor in a way that does not detract from the dimensions or the performance of the finished sensor. The incorporation of the voltage follower into the housing... | 11/04/1997 |
| 5419190 | Apparatus and method for measurement of mass flow rates in a large conduit A method and apparatus for measuring mass flow rates and other characteristics of a fluid in a large conduit uses a sensor circuit having a heater/thermometer, a reference resistor, and a thermometer resistor arranged in four-wire network to enable measur... | 05/30/1995 |
| 5165272 | Device for reducing noise during potentiometer evaluation A device for noise peak suppression during a potentiometer evaluation has a potentiometer located between a reference voltage and mass and having a slider with a slider output, a control device adapted to receive a signal from the slider output of the pot... | 11/24/1992 |
| 5166628 | Sliding contact electrical path or angle sensor An electrical path or angle sensor comprises a first, stationary contact segment, a plurality of stationary, second contact segments arranged one behind the other and separated from one another by dividing gaps, these second contact segments being connect... | 11/24/1992 |
| 5049827 | Non-contacting potentiometer A non-contacting potentiometer includes a resistor and a movable probe which capacitively couples AC signals applied to the resistor to an output terminal. A closed loop control circuit is coupled to the resistor and the probe to compensate for variations... | 09/17/1991 |
| 5010270 | Saw device Techniques for adjusting the surface acoustic wave velocity of a packaged SAW device are described. A first technique involves depositing a film from a cover of the device onto a surface wave propagating surface thereby providing a localized region on sai... | 04/23/1991 |
| 4994752 | Position detecting potentiometer for a moving body A position detecting apparatus electrically detects the present position of a moving body reciprocated within a movable region. The apparatus comprises a resistance section continuously disposed by a predetermined length along the reciprocating direction ... | 02/19/1991 |
| 4972816 | Device for determining and/or controlling operating data of automotive vehicles with internal combustion engines A device is described for determining and/or controlling the operating data of automotive vehicles, particularly for controlling the velocity of vehicles with internal combustion engines and electric transmission of the position of the gas pedal to an ele... | 11/27/1990 |
| 4952893 | Attenuating circuit An attenuating circuit including a reference signal path that is attenuated by an amount which is related to the attenuation in an attenuation signal path for the purpose of improving attenuation accuracy.... | 08/28/1990 |
| 4803420 | Method of determining the position of the tap on a resistance teletransmitter A method of and a circuit arrangement for determining the position k of the tap (1) on a resistance teletransmitter (2). A voltage (U1) is determined between a first conductor (21) connected to a first connection (10) of the resistance teletransmitter (2)... | 02/07/1989 |
