SU1019376A1 - Electronic device electrode break and short-circuiting detecting device - Google Patents

Abstract

A DEVICE FOR DETECTION OF ELECTRODES ELECTRODE ELECTRODES DETECTION AND ELECTRIC INSTRUMENTS containing a generator, memory element, the output of which is connected to an indicator, characterized in that, with simplification, a rectifier, filter and resistor are inserted into the Hetx, and the output of the generator is connected to an emitter, a rectifier, filter and resistor are inserted into Hetx, and the output of the generator is connected to an emitter, a rectifier, filter and resistor are entered into Hetx, and the output of the generator is connected to an emulator; connecting the first output of the vacuum pump device, the second terminal for connecting the second output of the vacuum device through a series-connected rectifier, filter and resistor connected to the input of the memory element.

Description

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The invention relates to a checkpoint for technical maintenance, in particular, to devices that have detected breaks and closures of electrodes during the production of vacuum devices, including hynes1 (op.

A device for testing dc short circuit and electrode breaks in electrovacuum devices, which contains terminators, neon lamps, voltage dividers on resistors and protective resistors 1J, is known.

The disadvantage of the device is low sensitivity and the inability to control devices with small between electrode capacitances.

It is also known a device dp for testing electronic lamps for the absence of interelectrode circuits, which contains a divider, voltages, transformers, logic elements And, integration elements, tiratrons and electromagnetic relays.

This device does not detect any electrode breaks.

The closest in technical essence to the invention is a device for detecting breaks and short circuits of electrodes of an electrovacuum device, comprising a generator of rectangular mv pulses connected through an input logic device to the output of a first electrovacuum device, the output of the second electrode of which is connected to a time signal selector through which is connected via an element of memory to an indicator, a switch connected to an input logic device, a time signal selector and a device a trio of level control connected to the fsj level detector.

A disadvantage of the known device lies in its complexity, which reduces the reliability of its operation.

The purpose of the invention is to simplify the device.

This goal is achieved by introducing a rectifier, a filter, and a resistor into the device containing the generator, the memory element whose output is connected to the indicator, and the output of the generator is connected to the clamp for. connect the first output of the vacuum device; the second terminal for connecting the second output of the vacuum device through the series-connected rectifier; the filter and the resistor are connected to the input of the memory capacitor.

The drawing shows the block diagram of the device.

The device contains a generator 1, which is a generator of sinusoidal oscillations with self-excitation (self-oscillator), the first 2 and second 3 terminals for connecting the leads of an electrovacuum device 4, a rectifier 5, a filter 6, a resistor 7, a memory element 8, an indicator 9.

The device works the next time.

High-frequency oscillations from the generator 1 output go to terminal 2. The exhausted signal taken from terminal 3 goes to rectifier 5. The rectified signal is filtered by filter 6 and fed to resistor 7 C of resistor 7 signal goes to memory element 8, output signal which controls the operation of the indicator 9. The magnitude of the resistor 7 is selected so that, in the presence of a short between the terminals, 0 generator 1 is generated.

Thus, both the breaks and the short circuits of the electrodes are monitored simultaneously, while on the resistor 7, depending on the state of the electrodes being tested, the response signal has three different levels:

at suitable electrodes - nominal; at break of one lnbo of two electrodes - below nominal; 0 when the circuit between the electrodes is zero.

The proposed device provides detection of breaks and short circuits of the electrodes of the electrovacuum device 5 at all stages of its manufacture and differs favorably from the known simplicity of the electrical circuit, operational reliability, ease of operation, and possible to check it with 0 different types of vacuum devices. without significant design changes.

Claims (1)

A device for detecting breaks and short circuits of electro-vacuum device electrodes, comprising a generator, a memory element, the output of which is connected to an indicator, characterized in that, for simplicity, a rectifier, a filter and a resistor are introduced into it, and the generator output is connected to a terminal for connecting the first output electrovacuum device, a second clamp for connecting the second output of the electrovacuum device through a series-connected rectifier, filter and resistor connected to the input of the memory element. >