SU1307236A2 - Recording device - Google Patents

Description

The invention relates to instrumentation and can be used in devices with electrical methods for recording information on paper,

The aim of the invention is to reduce the error in registering small quantities.

Figure 1 presents the diagram of the recording device; figure 2 -. curved electrodes, made in the form of flat spirals; on fig.Z - the same, in the form of cylindrical spirals (helicoids); figure 4 is an example of a recording process using the proposed device.

The recording device contains a disk 1 of electrically insulating material, the main 2 and additional 3 curved electrodes, shaft 4, rotation angle sensor 5, sweep signal former 6, zero body 7, linear electrode 8. Curved electrodes 2 and 3 are electrically connected differently and mounted on the disk 1, which rotates on the shaft 4 connected to the sensor 5. The output of the latter is connected to the input of the sweep signal generator 6, which is connected to the null organ 7, fixing the moment of equality of the sweep signal, its output shaper 6, with the recorded signal. At that moment, a high voltage pulse from the zero-organ output is delivered to a linear electrode 8 located across the carrier field.

The recording medium 9, moving with the aid of a tape mechanism (not shown), is intended for recording marks applied, for example, by the electrostatic method by means of a system of stationary and rotating electrodes.

Curved electrodes can be made in the form of flat spirals, located on a common base from an electrically insulating material, electrically interconnected and having a common axis in growth (Fig. 2), or in the form of cylindrical spirals (helicoids) located on a common cylinder and having a common point at one of the bases of the cylinder (fig.Z).

The device works as follows.

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When the disk 1 rotates with the electrodes 2 and 3 mounted on it, the output of the angle sensor 5 appears to be signals that are fed to the driver 6 of the spreading signal. At the same time, the point of intersection of the electrodes 2 and 8 moves across the floor of the carrier 9 from one edge to another. When the angles of rotation of the disk less about the electrode 8 also intersects the electrode 3, and the intersection point of the electrodes 2 and 3 with the electrode 8 is separated from the edge of the carrier k a and a times farther than electrodes 2 and 8 (figure 2), where a, - the point of intersection of the electrode 8 with the electrode 2, a; - Electrode 8 with electrode 3.

At the output of the former 6, the sweep signal forms a linearly varying voltage proportional to the distance from the edge of the carrier (zero line) to the intersection point of electrodes 2 and 8. At the moment of equality of the recorded and sweep signals, the zero-body 7 imposes a write pulse to the electrode 8. At small (less than i) angles of rotation of the disk corresponding to small values of the m-registered value, recording occurs simultaneously at two points corresponding to the intersection of electrode B with the main 2 and additional 3 electrodes, i.e. the recorded value is recorded simultaneously on a larger and larger scale.

Claims (1)

Thus, for one revolution of the disk rotation, without any additional controls, the process is recorded at two scales - basically, providing ease of reading in the whole range of change of the recorded value and in the increased one, allowing to reduce the error in recording small quantities. Invention Formula Registering device auth. St. No. 1059428, characterized in that, in order to reduce the error in registering small quantities, an additional curved electrode with a bending radius larger than that of the main curved electrode and electrically connected to it is inserted into the disk. phi.2 fig.Z Record b headset / f: f Basically records. Null line Editor T. Parfenova Compiled by N.Lankov Tehred I.Popovich Order 1619/38 Circulation 694 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4 fig a Proofreader A. Obruchar