| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 161 | Movable coil apparatus | JP9231077 | 1977-08-02 | JPS5335154A | 1978-04-01 | PIITAA MARIE JIYOSEFU PIITAASU |
| 162 | Digital circuit for linearizing oscillator*s nonnlinear characteristic | JP13273976 | 1976-11-04 | JPS5257767A | 1977-05-12 | ATSUCHIRA RUGOSU |
| 163 | JPS50132966A - | JP3792074 | 1974-04-05 | JPS50132966A | 1975-10-21 | |
| 164 | JPS5031421B1 - | JP12861870 | 1970-12-29 | JPS5031421B1 | 1975-10-11 | |
| 165 | JPS4864855A - | JP11724672 | 1972-11-24 | JPS4864855A | 1973-09-07 | |
| 166 | SCHALTUNGSANORDNUNG MIT TRANSFORMATOR MIT MITTELPUNKTANZAPFUNG UND MESSUNG DER AUSGANGSSPANNUNG | EP16707131.5 | 2016-03-01 | EP3269031B1 | 2018-12-12 | MAGERL, Christian; MUSIL, Franz Peter; EBERL, Robert; STEINMAURER, Friedrich |
| 167 | SYSTEM FOR MEASURING CURRENT AND METHOD OF MAKING SAME | EP12750897.6 | 2012-07-25 | EP2737325B1 | 2018-11-14 | WOELFEL, James; WOODLEY, Kaijam |
| A system for measuring current includes a current monitoring system comprises a current sensor configured to sense a first current passing through a conductor and a voltage conversion device coupled to the current sensor and configured to receive a second current from the current sensor and convert the second current into a first voltage. A first scaling circuit is coupled to the voltage conversion device and configured to convert the first voltage to a second voltage proportional to the first current based on a first scaling factor, and a second scaling is circuit coupled to the voltage conversion device and configured to convert the first voltage to a third voltage proportional to the first current based on a second scaling factor, wherein the second scaling factor is different from the first scaling factor. | ||||||
| 168 | Appending pseudo-random sub-lsb values to prevent intensity banding | EP11174537.8 | 2011-07-19 | EP2423692A3 | 2017-01-25 | Eby, David |
Test and measurement instrument that displays acquired data on a logarithmic scale without intensity banding. The test and measurement instrument processes the acquired data before it is displayed by appending pseudo-random sub-LSB (least significant bit) values to it. When the processed acquired data is displayed on a logarithmic scale, the pseudo-random sub-LSB values fill in the gaps between discrete power levels, thereby eliminating intensity banding and providing a smooth, visually pleasing display.
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| 169 | OPTICAL CURRENT TRANSDUCER WITH OFFSET CANCELLATION AND CURRENT LINEARIZATION | EP16162097.6 | 2016-03-23 | EP3076192A1 | 2016-10-05 | WALLACE, Daniel Robert; KOROT, Daniel; SERRADIMIGNI, Charles Max |
There is provided a system for use with a fiber-optic current transducer. The system includes a processing unit (132) configured to transduce a first light signal into a first electrical signal (X). The processing unit (132) is further configured to transduce a second light signal into a second electrical signal (Y). The processing unit (132) is configured to remove offsets from the first electrical signal and the second electrical signal by forcing the first electrical signal and the second electrical signal to be on the same per unit basis. Furthermore, the processing unit (132) is configured to combine the first electrical signal (X) and the second electrical signal (Y) to produce a composite signal, the composite signal being free of the offsets. And the processing unit (132) is further configured to linearize the composite signal to produce an output current indicative of a current flowing in a conductor (113) disposed proximate the FOCT.
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| 170 | SYSTEM FOR MEASURING CURRENT AND METHOD OF MAKING SAME | EP12750897.6 | 2012-07-25 | EP2737325A2 | 2014-06-04 | WOELFEL, James; WOODLEY, Kaijam |
| A system for measuring current includes a current monitoring system comprises a current sensor configured to sense a first current passing through a conductor and a voltage conversion device coupled to the current sensor and configured to receive a second current from the current sensor and convert the second current into a first voltage. A first scaling circuit is coupled to the voltage conversion device and configured to convert the first voltage to a second voltage proportional to the first current based on a first scaling factor, and a second scaling is circuit coupled to the voltage conversion device and configured to convert the first voltage to a third voltage proportional to the first current based on a second scaling factor, wherein the second scaling factor is different from the first scaling factor. | ||||||
| 171 | Appending pseudo-random sub-lsb values to prevent intensity banding | EP11174537.8 | 2011-07-19 | EP2423692A2 | 2012-02-29 | Eby, David |
Test and measurement instrument that displays acquired data on a logarithmic scale without intensity banding. The test and measurement instrument processes the acquired data before it is displayed by appending pseudo-random sub-LSB (least significant bit) values to it. When the processed acquired data is displayed on a logarithmic scale, the pseudo-random sub-LSB values fill in the gaps between discrete power levels, thereby eliminating intensity banding and providing a smooth, visually pleasing display.
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| 172 | Dispositif de protection différentielle comportant un circuit test multitension | EP99410125.1 | 1999-10-05 | EP0998003B1 | 2010-03-03 | Paupert, Marc; Cador, Nicolas |
| 173 | MEASURING ELECTRICAL IMPEDANCE AT VARIOUS FREQUENCIES | EP06820651.5 | 2006-12-04 | EP1963871A1 | 2008-09-03 | ORR, Timothy |
| Known measuring instruments generate a test signal for application to a target device. Linear analogue to digital converters are then used to produce data samples representing the voltage across and the current through the device and these data samples are used to calculate impedance as a function of frequency. The A/D conversion process can be expected to worsen with reducing signal levels. This problem is overcome, in the invention, by using a logarithmic level detector (9) to produce analogue signals that represent logarithms of the voltage across and current through the device (7). These signals are passed to a processor (1) that performs a digital conversion; and, because this takes place after logarithmic conversion, it becomes possible to obtain an appropriate resolution for all signal levels. | ||||||
| 174 | SCHALTUNGSANORDNUNG ZUM REGELN DES EINEM ELEKTROMECHANISCHEN BAUTEIL IN EINEM KRAFTFAHRZEUG ZUGEFÜHRTEN STROMES | EP98961014.2 | 1998-10-16 | EP1023773B1 | 2002-01-09 | HAUER, Gerald |
| The invention relates to a circuit (1) which especially serves to regulate the loop current for a hydraulic regulating valve (16) of a motor vehicle transmission (17). A shunt (9) constructed as a thick-film resistor and a temperature sensor (3) which detects the transmission oil temperature and is thermally coupled to said shunt (9) are placed on a circuit support (4) made of ceramic material. The signals of the shunt (9) and the temperature sensor (3) are sent to a control unit (14) in which the temperature sensor signal is utilized in order to compensate the temperature dependent resistance value of the shunt (9). | ||||||
| 175 | Automatic scaling for display of modulation domain measurement | EP91106628.0 | 1991-04-24 | EP0484618B1 | 1996-01-17 | Ferguson, Keith M. |
| 176 | Automatic scaling for display of modulation domain measurement | EP91106628.0 | 1991-04-24 | EP0484618A1 | 1992-05-13 | Ferguson, Keith M. |
A method for examining an input signal and setting a modulation domain measuring instrument to a state which will produce a measurement and a stable, centered, properly scaled display of the signal, automatically. After finding the 50 percent voltage threshold of the input signal, an iterative process determines the minimum and maximum input frequency, then checks the ratio of these two frequencies against instruments limits, and adjusts the display values, if necessary to show only the higher frequencies. The method then varies the measurement parameters to seek the best frequency resolution while maintaining the measurement and display of frequency modulation. The display frequency scale is set to display the signal in the center hart of the display, using values with no more than two significant digits for the center and span. The time scale is set to display a selected number of modulation cycles. |
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| 177 | Dispositif de traitement d'un signal provenant d'un capteur ayant une réponse du type dérivatif | EP91402466.6 | 1991-09-17 | EP0477087A1 | 1992-03-25 | Eumurian, Grégoire |
Le domaine de l'invention est celui des dispositifs de mesure de signaux dans le domaine des phénomènes large bande. Plus précisément, la présente invention concerne un dispositif de traitement d'un signal électrique provenant d'un capteur (10) du type dérivatif destiné à mesurer un champ électrique ou magnétique, des courants de charge de surface ou autres grandeurs dérivées, ledit traitement incluant le calcul de la primitive de la partie dudit signal de fréquence spectrale supérieure à une fréquence basse f₁ , ledit dispositif comprenant:
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| 178 | Verfahren und Schaltungsanordnung zur Erzeugung einer Eingangsgrösse für ein Kreuzspulanzeigeinstrument | EP90104433.9 | 1990-03-08 | EP0413891A3 | 1992-01-08 | Haussman, Bernd, Dipl.-Ing.; Belz, Robert, Dipl.-Ing. |
Es wird ein Verfahren zur Erzeugung einer Eingangsgröße für ein Kreuzspulanzeigeinstrument aus einem Meßsignal angegeben, bei dem die Frequenz des Meßsignals in einen frequenzproportionaien Eingangsstrom für das Kreuzspulanzeigeinstrument (11) umgewandelt wird. Weiterhin wird eine Schaltungsanordnung angegeben, bei der ein Eingangsanschluß für das Meßsignal mit einer Periodendauermeßeinrichtung (3, 4, 5) verbunden ist, deren Ausgang mit einer Dividiereinrichtung (6) verbunden ist, deren Ausgang eine der Frequenz des Meßsignals (fM) proportionale Steuergröße in einen Eingang (13) einer Verarbeitungsschaltung (8, 10) einspeist. Nachteilhaft bei dem bekannten Verfahren und der bekannten Schaltungsanordnung ist die Tatsache, daß bei einer niedrigen Frequenz des Meßsignals eine sprunghafte Bewegung des Zeigers des Anzeigeinstruments (11) zu beobachten ist. Um diese sprunghafte Bewegung auszuschalten, wird unterhalb eines vorbestimmten ersten Frequenzwerts des Meßsignals ein Eingangsstrom erzeugt, der das Kreuzspulanzeigeinstrument (11) unabhängig von der tatsächlichen Frequenz auf einen vorbestimmten Wert steuert. |
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| 179 | Messschaltungsanordnung für einen elektrischen Messwertgeber | EP86108868.0 | 1986-06-30 | EP0212156B1 | 1991-07-17 | Von Pentz, Bernhard |
| 180 | Circuit for measuring capacity of battery | EP89201462.2 | 1989-06-08 | EP0346970A1 | 1989-12-20 | Hishiki, Teruo |
The discharge capacity of a secondary battery, such as a Ni-Cd battery, takes the maximum value at around the room temperature and gradually decreases both with the increase and decrease of ambient temperature from the room temperature. The discharge capacity of such a secondary battery also decreases with the increase of the number of charging-and-discharging cycles of the battery. A circuit for measuring the remaining discharge capacity of the secondary battery 10 comprises a capacitor 23 whose temperature and aged-variation characteristics are very similar to those of the discharge capacity of the secondary battery. When the switch 11 is closed, the motor 13 is driven by the output of the battery 10, and the current flowing through the battery 10 is detected by a resistor 17 as a voltage. The voltage follower 20 amplifies the detected voltage and drives the resistor 24, so that the electric charge of the capacitor 23 is discharged at a rate determined by the magnitude of the current through the resistor 24. The voltage across the capacitor 23 is compared with a predetermined value by the hysteresis comparator 29 which controls the ON/OFF state of the transistor 21 in accordance with the comparison result. The output pulses of the hysteresis comparator 29, i.e., the charging-and-discharging cycles of the capacitor 23, are counted by the counter 31. Since the capacitance of the capacitor 23 varies correspondingly to the variation in discharge capacity of the battery 10 in accordance with the ambient temperature and also with the use time of same, the count value obtained at the counter 31 indicates the remaining capacity of the battery 10 very accurately. |
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