SU1281898A1 - Recorder - Google Patents

Abstract

The invention relates to electromechanical recording devices for input-output, computer information, recording devices, and facsimile machines. The purpose of the invention is to increase the speed and recording quality of the recorder. The currents in the bias coils 4 and 14 included in the circuit of the DC amplifier 21 and the stable current generator 23, respectively, are inserted so that their flows in the membrane 10 have an opposite direction and are equal in magnitude. When current is applied from the bridge control circuit 22 to the control rolls 8 and 12, the membrane 10 is attracted to the electromagnet 7 or 15, depending on polarity. When the membrane 10 is displaced towards the core 1I, the constant component of the output voltage of the Hall transducer 1 and the output voltage of the integrator 20 increases. The bias current of the coil 4 and the magnetic flux of the gap increase. This keeps the membrane 10 from moving to the core 11. 3 sludge. with S (L yu as oo (x sh Figure 1

Description

The invention relates to electromechanical underpinning devices for input / output of information of a computer, recording devices, facsimile machines and can be used both for operating in a percussive manner and for writing in ink.

The purpose of the invention is to increase the speed and quality of the recorder recording.

FIG. 1 shows a recorder; in fig. 2 is a diagram of one of the vaD for the movement of the membrane 10 to the form for a distance of 0.18-0.2 mm and printing one point of discrete information to the coils 8 and 12 from the output of the bridge control circuit 22, a pulse with a duration of 100 ISS is applied. 50 µs after the end of this pulse, the same reverse-polarity pulse is applied from circuit 22 to return the membrane to its original position. To keep the membrane in its original position

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In order to complete the automatic 10 circuit and calm its self-oscillations in coils 8 and 12, at times of no information, a current of 0.1 A is maintained. The membrane moving time corresponding to a frequency of 4 kHz to print a single information point is added up to Tdv 1dvp + b + 1dvn 110 + 30 + 1 10 250 ISS, where tiiBii is the forward time;

taiiH is the time of going backwards;

t. - time of contact with the form.

The induction in the gaps depends on the distance between the membrane and the cores 9 and 1 1 and varies according to the vibrations of the membrane. The output voltage of the HRP (Fig. 3 b) is proportional to these changes in the rear gap and according to the adjustment; in fig. 3 - timing charts of the recorder.

The recorder (Fig. 1) consists of Hall I (HRP) converters, heat sink 2, magnetic concentrator 3, bias flux source - coil 4, magnetization coil 5, nut 6, ring electromagnet 7, control coil 8, trimmer core 9, trimmer membrane 10, core II, control coil 12, heat sink 13, bias flow source — bias coil 14, ring electromagnet 15, fluoroplastic sleeve 16, guide tube 17, writing needle 18, sapphire stone 19, integrator 20, amplifier 21

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direct current (UFD), the bridge controls the position of the membrane in each of the praying circuit 22, the stable current generator (GTS).

Each of the box-shaped electromagnets 7 and 15 contains a coil 4 or 14 magnetics, the coil 4 being connected to the output of the DC control device 21, the input of which through the integrator 20 is connected to HRP 1 fixed to the end of the magnetic concentrator 3 placed in the opening of the trimming core 9, and the coil 14 connected to the output of the GST 23, coil 8 or 12, control connected in parallel to the output of the bridge control circuit 22, trimming core 9 or 11. Between the electromagnets 7 and 15, fixed in the housing 5 by means of a nut 6, a membrane 10 is installed A needle 18 extending to the form through an opening in the trimmer core 11, a sleeve 16 and a sapphire stone 19. Heat sinks 2 and 13 are installed between the rolls 4, 14 and 8, 12.

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time ment.

With a frequency of recorded information of 1.8-2 kHz (to-ti, fig. 3 b), the membrane oscillates in a specific and unchanged spatial region between cores 9 and 11. The voltage at the integrator's output (Fig. 3 c) and, accordingly, the current magnetization (Fig. 3 d) and the magnetic flux formed by it are constant.

With an increase in the recording frequency to 4 kHz (ti-12 moment) and with an open feedback circuit, there is a tendency for the membrane oscillation region to move toward the core 11 (Fig. 3b, dotted line). In this case, a constant component of the output voltage of the HRP 1 begins to increase. The output voltage of the integrator 20 also increases, and when the feedback circuit closes, arriving at the DCF input 21, causes an increase in the bias current of the coil 4 and the magnetic flux in the back gap, which keeps the diaphragm from the post-device. 45 of the foam displacement to the core 12. Thus, the currents in the coils 4 and 14 are magnetized, ensuring that the area not included in the circuit of the DCF 21 and GTS 23, respectively, is set so that their flows in the membrane 10 have an opposite direction and are equal to in magnitude. In this case, the membrane 10 is in the middle position relative to the cores 9 and 1 1 of electromagnets 7 and 15.

When current is supplied from the bridge control circuit 22 to the coils 8 and 12 of the membrane oscillations in space, its initial position and operation of the recorder at a frequency of 4 kHz.

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Depending on its polarity, the membrane 10 is attracted to the electromagnet 7 or 15 (the curve of the membrane movement is shown in Fig. 3 b.

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Claims (1)

Invention Formula A recorder consisting of a writing needle, its guide with a sapphire stone, mounted on a cylindrical case, in which a magnetic circuit is placed, containing a membrane, symmetrically located two ring electromagnets, each of. which consists of a control coil connected to the pavement output To move the membrane 10 to the form for a distance of 0.18-0.2 mm and to print one point of discrete information, a pulse of 100 ISS duration is applied to the coils 8 and 12 from the output of the bridge control circuit 22. 50 µs after the end of this pulse, the same reverse-polarity pulse is applied from circuit 22 to return the membrane to its original position. To keep the membrane in its original position time ment. With a frequency of recorded information of 1.8-2 kHz (to-ti, fig. 3 b), the membrane oscillates in a specific and unchanged spatial region between cores 9 and 11. The voltage at the integrator's output (Fig. 3 c) and, accordingly, the current magnetization (Fig. 3 d) and the magnetic flux formed by it are constant. With an increase in the recording frequency to 4 kHz (ti-12 moment) and with an open feedback circuit, there is a tendency for the membrane oscillation region to move toward the core 11 (Fig. 3b, dotted line). In this case, a constant component of the output voltage of the HRP 1 begins to increase. The output voltage of the integrator 20 also increases, and when the feedback circuit closes, entering the DCF 21, causes an increase in the bias current of the coil 4 and the magnetic flux in the rear gap, which keeps the diaphragm from a gradual displacement to the core 12. Thus at once, the region is kept constant vibrations of the membrane in space, its initial position and performance recorder at a frequency of 4 kHz. which keeps the membrane from gradual displacement to the core 12. Thus, the stability of the region is ensured. Invention Formula A recorder consisting of a writing needle, its guide with a sapphire stone, mounted on a cylindrical case, in which a magnetic circuit is placed, containing a membrane, symmetrically located two ring electromagnets, each of. which consists of a control coil connected to the pavement output a control circuit, a source of a magnetizing flow and a trimmer core having a through hole, characterized in that, for the purpose of a new increase in speed. VIA and recording quality, a magnetic concentrator, a Hall transducer, an integrator, a DC amplifier, a stable current generator, and a source of bias fluxes are introduced in it The coil-mounted 1-solenoid electromagnets, the first of which is connected to the output of a stable current generator, and the second to the output of a direct current amplifier, the input of which through an integrator is connected to the output of a Hall converter installed on the end of a magnetic concentrator placed in one of the trimmer cores. -and, but Ur.  nx