SU1347047A1 - Device for detecting faults in cable line connectors - Google Patents

Abstract

The invention relates to electrical measuring equipment and can be used to determine the location of damage in various kinds of cable products. The aim of the invention is to simplify the device, which is achieved by the introduction of new inter-element links. The device contains a generator of sinusoidal RF signals 1, indicator 2, resistor 3, capacitors 4 and 5, inductance 6. Indicator 2 is made on two oppositely connected LEDs 7 and 8. When a wire breaks in one of the connectors, additional cable capacitance and imbalance do not occur the settings of the resonant circuit formed by the capacitor 4 and inductance 6. As a result, the LEDs 7 and 8 do not turn on, which indicates the presence of power in the object being inspected. 1 il. i (L cx 4 O 4 ::

Description

The invention relates to electrical measuring equipment and can be used to determine the location of a break in various kinds of cable products,

The purpose of the invention is to simplify the device,

The drawing shows a diagram of the proposed device.

The device contains a generator of 1 high-frequency (HF) (sinusoidal) signals, an indicator 2, a resistor 3, the first 4 and second 5 capacitors, and an inductance 6. The indicator 2 consists of two oppositely lit LEDs 7 and 8.

Generator 1 RF signals are connected to a common bus, and the output through a resistor 3 to the first output of the first capacitor 4 and the first input of the indicator 2, the second output of the first capacitor 4 is connected through inductance 6 to the second input of the indicator 2 and through the second capacitor 5 to the terminal for connection to the control object, the third output of the indicator 2 is connected to the common bus.

The device works as follows.

When the power is turned on, a stable RF generator 1 generates signals fed through a resistor 3 (R) to a capacitor 4 and an inductance 6, forming a resonant circuit that is tuned to the frequency of the generator 1. At the resonant frequency, the resistance of the circuit is determined by its active component, almost active resistance inductance which

Editor I.Gorn

Compiled by V. Kovalenko

Tehred A. Kravchuk Proofreader L.T.

Order 5118/45 Circulation 729 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, Projecto st., 4

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five

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five

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five

little .. There is a shunting of LEDs 7 and 8. The latter do not radiate in the initial state.

In the case of continuity in the case of conductor integrity in the cable connector, additional distributed capacitance of the cable and misalignment of the resonant circuit are introduced, as a result of which LEDs 7 and 8 light up, indicating that there are no wires in or near the connectors.

If there is a wire break in one of the connectors or near it, no additional capacitance occurs or this capacitance is small, no changes are made to the resonant resistance of the circuit, and the LEDs 7 and 8 do not light up, indicating a break in the connector being tested or near it.

Claims (1)

Formula invention A device for localizing faults in cable line connectors, comprising a high frequency signal generator connected by a common bus terminal and an indicator, characterized in that, in order to simplify the device, the high frequency signal generator output is connected via a resistor to the first terminal of the first capacitor and the first indicator input The second output of the first capacitor is connected through an inductance to the second input of the indicator and through the second capacitor to a terminal for connecting the test object, the third output is Ator connected to a common bus.