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    Electronic voltage and continuity testing unit
    2.
    发明授权
    Electronic voltage and continuity testing unit 失效
    电子电压和连续性测试单元

    公开(公告)号：US4356442A

    公开(公告)日：1982-10-26

    申请号：US140476

    申请日：1980-04-15

    Applicant: Christian Beha

    Inventor： Christian Beha

    IPC: G01R19/155 ,  G01R31/02 ,  G01R19/14 ,  G01R15/12

    CPC classification number: G01R31/024 ,  G01R19/155

    Abstract: Mulit-mode voltage and continuity testing apparatus is disclosed for effecting a single pole phase mode of testing, and comprises first and second testing terminals, a loudspeaker, a battery energized oscillator having a control input, a control transistor, and first and second resistances. Circuitry is provided for directly connecting the battery through the emitter and collector of the control transistor to the control input of the oscillator circuit, and the first testing terminal to the base of said control transistor, whereby the testing apparatus effects a single pole phase mode in which a voltage source to be tested is connected to said first testing terminal.

    Abstract translation: 公开了用于实现单极相位测试模式的多模式电压和连续性测试装置，并且包括第一和第二测试端子，扬声器，具有控制输入的电池通电振荡器，控制晶体管以及第一和第二电阻。 提供电路，用于通过控制晶体管的发射极和集电极将电池直接连接到振荡器电路的控制输入，将第一测试端子连接到所述控制晶体管的基极，由此测试装置实现单极相位模式 将要测试的电压源连接到所述第一测试终端。

    Test instrument for the display of electric voltages
    9.
    发明授权
    Test instrument for the display of electric voltages 失效
    用于显示电压的测试仪器

    公开(公告)号：US5293113A

    公开(公告)日：1994-03-08

    申请号：US960952

    申请日：1992-10-15

    Applicant: Christian Beha ,  Martin Schwartz

    Inventor： Christian Beha ,  Martin Schwartz

    IPC: G01R19/257 ,  G01R31/02 ,  G08B21/00

    CPC classification number: G01R19/257

    Abstract: A testing device for single-pole voltage testing comprises, between a test electrode (1) and a ground electrode (2), a high impedance dropping resistor (R1) and a measurement resistor (R2) connected in series. The ground electrode (2) is capacitively coupled to earth through the body of the user. The value of the dropping resistor (R1) is at least 10 times greater than the maximum variation which occurs in the capacitively coupled reactance (C1, C2) of the user relative to the ground, so that the total impedance is almost constant. The voltage drop across the measurement resistor (R2) is amplified, rectified and compared in a comparison circuit with predetermined reference voltages in order to control a light emitting diode indicator (D2, D3, D4, D5) corresponding to the measured voltage. The test device can also be constructed for contactless voltage testing or can also be used as a continuity tester.

    Abstract translation: 用于单极电压测试的测试装置包括在测试电极（1）和接地电极（2）之间，串联连接的高阻抗降压电阻器（R1）和测量电阻器（R2）。 接地电极（2）通过使用者的身体与地电容耦合。 下降电阻器（R1）的值比在用户相对于地面的电容耦合电抗（C1，C2）中发生的最大变化大至少10倍，使得总阻抗几乎恒定。 测量电阻器（R2）上的电压降被放大，整流，并在比较电路中与预定的参考电压进行比较，以便控制对应于测量电压的发光二极管指示器（D2，D3，D4，D5）。 测试装置也可以用于非接触式电压测试，也可以用作连续性测试仪。

    Alternating voltage detector
    10.
    发明授权
    Alternating voltage detector 有权
    交流电压检测器

    公开(公告)号：US06653826B2

    公开(公告)日：2003-11-25

    申请号：US09852007

    申请日：2001-05-10

    Applicant: Christian Beha

    Inventor： Christian Beha

    IPC: G01R1302

    CPC classification number: G01R19/155

    Abstract: An alternating voltage detector having a sensor for the detection of an electric alternating field, an electrical signal transducer connected to the sensor for signaling an electrical alternating field detected by the sensor, and an indicator unit connected to the electrical signal transducer for the indication of the signaled electrical alternating field, has an interference pulse filter arranged between the sensor and the electrical signal transducer which filters out electrical pulses or pulse packets detected by the sensor which have an average pulse duration or average pulse packet duration less than a predetermined time.

    Abstract translation: 具有用于检测电动交变场的传感器的交流电压检测器，连接到传感器的电信号传感器，用于发信号通过传感器检测到的电交变场;连接到电信号传感器的指示器单元，用于指示 具有布置在传感器和电信号传感器之间的干涉脉冲滤波器，该干涉脉冲滤波器滤除由传感器检测到的电脉冲或脉冲包，其具有小于预定时间的平均脉冲持续时间或平均脉冲包持续时间。

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