公开(公告)号：EP0062446A1

公开(公告)日：1982-10-13

申请号：EP82301529.2

申请日：1982-03-24

Applicant: THE GENERAL ELECTRIC COMPANY, p.l.c.

Inventor： Ko, Yu Ming ,  Cornick, Keith

IPC: G01R31/08

CPC classification number: G01R31/085 ,  H02H7/265

Abstract: In a method of locating the position of a fault (F) occurring in an electric power transmission system an indication of the position of the fault with respect to a monitoring point (A) is obtained from the time taken (TRW2-TFW1) for a transient component of fault signal to travel from the monitoring point to the fault and back to the monitoring point after reflection at the fault. Apparatus for carrying out the method is also described.

Abstract translation: 在定位电力传输系统中发生的故障（F）的位置的方法中，从对于监视点（A）的时间（TRW2-TFW1）获得关于监视点（A）的故障位置的指示， 故障信号的瞬态分量从监测点行进到故障，并在故障反射回到监控点。 还描述了用于执行该方法的装置。

公开(公告)号：EP0035828A3

公开(公告)日：1982-01-27

申请号：EP81300387

申请日：1981-01-30

Applicant: THE GENERAL ELECTRIC COMPANY, p.l.c.

Inventor： Rigden, Sydney Alfred Richard

IPC: H01J63/02

CPC classification number: H01J63/02

Abstract: A cathodoluminescent lamp for use for general lighting service includes an anode constituted by an electrically conducting coating, which may be partly internally reflective, on the interior surface of the bulb wall, a phosphor coating over the whole of the bulb wall interior, a dome-shaped metal mesh grid located near the junction of the bulb with the envelope neck and supported on a hollow metal cylinder, and an electron emissive cathode mounted within the grid/cylin- der assembly. The cathode may be a "wreath" filament or indirectly heated disc located near the grid, or a linearfilament located near the open end of the cylinder remote from the grid. In the latter case a metal disc, connected to the negative lead to the cathode, is located near the open end of the cylinder, to repel electrons emerging therefrom. A circuit, which may be incorporated in the lampholder, converts the supply to unidirectional operating voltages applied to the anode, grid and cathode.

Abstract translation: 用于一般照明服务的阴极发光灯包括在灯泡壁的内表面上由导电涂层构成的阳极，其可以是部分内部反射的，在整个灯泡壁内部上的荧光体涂层， 位于灯泡与信封颈部的接头附近并支撑在中空的金属圆筒上的金属网格栅格，以及安装在栅格/圆柱体组件内的电子发射阴极。 阴极可以是位于栅格附近的“花圈”灯丝或间接加热的盘，或位于距离栅格远离汽缸的开口端附近的线性灯丝。 在后一种情况下，连接到负极的阴极的金属盘位于气缸的开口端附近，以排斥从其出现的电子。 可以并入灯座中的电路将电源转换为施加到阳极，栅极和阴极的单向工作电压。

公开(公告)号：EP0001160B1

公开(公告)日：1981-04-29

申请号：EP78300296.7

申请日：1978-08-18

Applicant: THE GENERAL ELECTRIC COMPANY, p.l.c.

Inventor： Bloodworth, Greville George ,  Manley, Martin Harold

IPC: H01L29/82 ,  H01L29/60 ,  H01L29/72 ,  G01R33/06

CPC classification number: H01L29/82 ,  G01R33/06

公开(公告)号：EP0019471A1

公开(公告)日：1980-11-26

申请号：EP80301603.9

申请日：1980-05-16

Applicant: THE GENERAL ELECTRIC COMPANY, p.l.c.

Inventor： Walker John

IPC: H02M3/335 ,  H03K17/04

CPC classification number: H03K17/0424 ,  H02M1/08 ,  H03K2217/0036

Abstract: A driving circuit for a power transistor switch In which a feedback transformer (32) between the collector path of the power transistor (21) and that of the drivor transistor (22) is used to provide a current drive to the power transistor that is proportional to the load curtent, and in which reverse cur. rant drive, also proportional to the load current is applied by way of a third winding 36 on the transformer to the emitter- base circuit of the power transistor (21) to decrease the switching-off time of that transisator.

公开(公告)号：EP0018750A1

公开(公告)日：1980-11-12

申请号：EP80301233.5

申请日：1980-04-17

Applicant: THE GENERAL ELECTRIC COMPANY, p.l.c.

Inventor： Bloodworth, Greville George ,  Manley, Martin Harold

IPC: G01R33/02

CPC classification number: G01R33/02

Abstract: A carrier-domain magnetometer (20) incorporating compensation for changes in its domain rotation fre- quency/magnetic flux density characteristic due to changes in operating conditions, e.g. electric bias and/or ambient temperature conditions, and/or dueto ageing, compensation being obtained by providing means (24 to 28) for monitoring the ratio (F-F o )/F o where is the domain rotation frequency when both a magnetic field biassing the magnetometer onto the linear part of its frequency/flux characteristic and a magnetic field to be sensed are applied, and F o is the domain rotation frequency when the biassing field only is applied.

公开(公告)号：EP0017383A1

公开(公告)日：1980-10-15

申请号：EP80300833.3

申请日：1980-03-19

Applicant: THE GENERAL ELECTRIC COMPANY, p.l.c.

Inventor： Brown, Harold Thomas ,  Groves, Raymond Derek

IPC: G01S15/89 ,  A61B10/00

CPC classification number: G01S7/52047 ,  G01S15/8918 ,  G10K11/341 ,  G10K11/345

Abstract: An ultrasonic imaging system utilising a multi-element ultrasonic transducer array for transmission and reception of ultrasonic signals wherein a different number of elements (L) is used in reception compared to transmission so as to reduce sidelobes in the resultant ultrasonic beam pattern. The elements may also be focussed to a different focal length in reception compared to transmission so as to obtain increased depth of field.

Abstract translation: 一种利用多元超声波换能器阵列的超声波成像系统，用于发送和接收超声波信号，其中与发射相比，在接收中使用不同数量的元件（L），以便减少所得到的超声波束图案中的旁瓣。 与传输相比，这些元件也可以聚焦于接收中的不同焦距，以便获得增加的景深。

公开(公告)号：EP0002387A1

公开(公告)日：1979-06-13

申请号：EP78300741.2

申请日：1978-12-05

Applicant: THE GENERAL ELECTRIC COMPANY, p.l.c.

Inventor： Elkateb, Makeen Mohammed ,  Thomas, Alan John

IPC: G08B21/00 ,  G01R31/00

CPC classification number: G01R27/18 ,  G01R19/16571

Abstract: A fault warning arrangement for use in an electric power system, wherein the system includes warning means (10,11) for producing a first signal when the value of the leakage current in an insulator arrangement (5, 6), e.g. supporting a power line (3), of the system exceeds a first threshold value. The warning means may be arranged to detect the passing of threshold values by values of insulator leakage current by detecting the passing of threshold values by values of total insulator currents.

Abstract translation: 一种用于电力系统的故障警告装置，其中所述系统包括警告装置（10,11），用于当绝缘体装置（5,6）中的泄漏电流的值（例如， 支持系统的电力线（3）超过第一阈值。 警告装置可以被布置成通过检测阈值的通过总绝缘子电流的值来检测阈值通过绝缘体泄漏电流的值。

公开(公告)号：EP0738893A3

公开(公告)日：1997-05-14

申请号：EP96302646.3

申请日：1996-04-16

Applicant: THE GENERAL ELECTRIC COMPANY, p.l.c.

Inventor： Jones, Alan John ,  Benson, Robert Trevor ,  Mills, Jonathan David

IPC: G01R11/02 ,  G01R21/133 ,  G01R19/00

CPC classification number: G01D3/02 ,  G01R11/02 ,  G01R21/133

Abstract: A synchronous detector circuit arrangement (30) is provided for detecting a signal of interest in an input signal, in which the input signal comprises a signal at a selected frequency which is modulated by the signal of interest and by an unwanted signal. The circuit arrangement comprises signal combining means (33) for combining the input signal with a correction signal (34); a synchronous detector (14) connected to the output of the signal combining means and operated at the selected frequency for detecting the signal of interest; and means (40, 43, 44) for generating the correction signal such that in operation the correction signal is a signal at the selected frequency, is in antiphase with the input signal and has an amplitude which is selected such as to at least partially cancel the unwanted signal.

公开(公告)号：EP0719306A1

公开(公告)日：1996-07-03

申请号：EP94922973.0

申请日：1994-08-01

Applicant: THE GENERAL ELECTRIC COMPANY, p.l.c.

Inventor： LORIA, Adrian, M. ,  LENT, Bruce, A.

IPC: B41J2 ,  C09D11

CPC classification number: C09D11/30

Abstract: An ink composition suitable for drop-on-demand ink jet printing on porous substrates comprising water, a colourant, a non-teratogenic and non-carcinogenic humectant, and a solid penetrant, which ink composition has a volatile organic content of less than 300 grams per litre.

公开(公告)号：EP0717286A2

公开(公告)日：1996-06-19

申请号：EP95309022.2

申请日：1995-12-12

Applicant: THE GENERAL ELECTRIC COMPANY, p.l.c.

Inventor： Jones, Alan John ,  Clowes, Darren James

IPC: G01R21/133

CPC classification number: G01D4/008 ,  G01R11/16 ,  G01R11/32 ,  G01R21/133 ,  G01R22/065 ,  Y02B90/247 ,  Y04S20/50

Abstract: Apparatus is provided for use with a commodity consumption meter (2), of a type having a sealed housing (3, 4, 6) and including a rotating component (14) whose rate of rotation depends upon the rate of consumption of the commodity, the rotating component being visible through a wall of the sealed housing. The apparatus comprises: a casing (38) which substantially completely covers the wall of the meter (2) and includes a transparent region (62) through which the rotating component (14) can be viewed and an optical assembly (64) for monitoring rotation of the rotating component. Preferably the optical assembly (64) comprises a light source (66) which is amplitude modulated at a selected frequency and is arranged to direct light (70) through the housing onto the rotating component (14) and a light detector (68) to detect reflected light (74) from the rotating component (14), the apparatus further including a synchronous detector circuit (82) connected to the detector (68) and operated at the selected frequency and processing means (96) arranged to count the number of revolutions of the component (14) using the output signal from the synchronous detector circuit (82).

Abstract translation: 提供了一种与商品消耗计（2）一起使用的装置，其具有密封壳体（3,4,6）并且包括其旋转速率取决于商品的消耗速率的旋转部件（14） 旋转部件通过密封壳体的壁是可见的。 该装置包括：壳体（38），其基本上完全覆盖仪表（2）的壁并且包括可以观察旋转部件（14）的透明区域（62）和用于监视旋转的光学组件（64） 的旋转部件。 优选地，光学组件（64）包括以选定频率进行调幅的光源（66），并被布置成将光（70）通过壳体引导到旋转部件（14）上，并且光检测器（68）检测 反射光（74），该装置还包括连接到检测器（68）并以所选频率操作的同步检测器电路（82），并且被配置为对转数进行计数的处理装置 （14）的使用来自同步检测器电路（82）的输出信号。