SU1051613A1 - Method of recording information on cathode-ray device - Google Patents

Abstract

METHOD OF RECORDING INFORMATION ON THE TARGET OF THE ELECTRON-RAY DEVICE, consisting in synchronous feed To two pairs of deflecting electrodes of alternating voltage sweep the electron beam the resolution, the alternating sweep voltage, sets a sawtooth with different rates of change of amplitude for each pair of deflecting electrodes. (L ate 2 s

Description

The invention relates to electronic engineering and is intended to register instantaneous processes in optically transparent media, in particular, to register electrical spreads and spreads of plasma, the propagation of shock waves, etc.

A known method of recording information on the screen of an electro-optical converter (allowing one to observe the development of the process in time by scanning the electronic image of the process with sawtooth voltage pulses applied to horizontal current deflection electrodes l.

The disadvantage of this method is the low temporal resolution with long full time registration process.

The closest in technical essence to the present invention is a method of recording information on a target of an electron-beam device, which consists in synchronously applying to two pairs of deflecting electrodes an alternating voltage sweep of an electron beam. In the known method, a spiral scanning of an electronic image on a target of an electron-beam device (ELP) is used, in particular, on an image intensifier screen.

The disadvantage of this method is the uneven recording density of information on the image intensifier screen, which makes it difficult to process eopograms for obtaining quantitative data.

Registered process.

The purpose of the invention is to improve the uniformity of the recording density of information on the target while maintaining the temporal resolution.

This goal is achieved by the fact that, according to the method of recording information on a target of an electron beam Bo .ro device, which consists in synchronously applying two alternating electrodes of an alternating voltage sweep of an electron beam to two pairs, the alternating sweep voltage is set sawtooth with different speeds for 1.

1 each pair of deflection electrodes,

FIG. 1 shows the function. the device; Fig. 2 shows the voltage dependence of 1) horizontal deflecting electrodes on time t; FIG. 3 shows the voltage Ug, on vertically deflecting electrodes, on time t.

The device comprises a power supply unit 1, an electron-optical converter 2, a generator 3 and 4 sweeps, horizontally deflecting 5 and vertically deflecting electrodes. The outputs of the power supply unit 1 are connected to the image intensifier 2 and the sweep generator 3 and 4. The output of the sweep generator 3 is connected to the horizontal deflecting electrodes 5, and the output of the sweep generator 4 to the vertical deflecting electrodes b.

(. (Fig. 2) defines the total time of the process registration, and 1 (Fig. 3) - the corresponding time resolution on the image intensifier screen.

The method is carried out as follows.

From the power supply unit 1, the power supply is supplied to the converter for the electron-optical converter 2 and the oscillators 3 and 4 sweep. The sweep generator 3 generates a sawtooth voltage pulse (Fig. 2) supplied to horizontal deflecting electrodes with a duration. Synchronously with generator 3, a generator of mountains 4f is generated. A series of sawtooth voltage pulses of Q duration are applied. variable voltage, then the recording of the image is linear and its density is uniformly distributed n the surface of the screen of the image intensifier.

When recording information on an EBR target according to a known method, the electron beam is scanned at the target in a spiral, and the information recording density on the EBR target is compressed to the center, i.e. is uneven. In order to obtain quantitative data on the process being recorded, additional mathematical processing of image recording is required.

The proposed method has the advantage that in the first eopogram the information recording density is the same on the screen for the whole process image, and for the quantitative analysis of the eopograms obtained from the proposed device, they are not processed further.

Claims (1)

'METHOD FOR RECORDING INFORMATION ON] TARGETS OF AN ELECTRON BEAM DEVICE, consisting in synchronous supply • of two pairs of deflecting electrodes of an alternating scanning electron voltage, which differs in order to increase the beam by the uniformity of the recording density of the information on the target while maintaining the time resolution', the alternating sweep voltage is set to sawtooth with different rates of amplitude change for each pair of deflecting electrodes. О SS ω с <* «ч Figure 1