SU1474556A1 - Device for measuring voltages of electric current and optic unit for scaling parameters of process under study - Google Patents

Abstract

The invention relates to an information measurement technology and can be used to measure the voltage of an electric current. The purpose of the invention is to increase speed and accuracy. Optical contact with the oscilloscope screen is an optical unit for scaling the parameters of the process under study, which contains an input quantizing unit 5 and a transformer 6 for a spatial optical signal, which are connected using optical lines 7.1.1-7.01.N, 7.2.1-7.2.N. The functions of the photodetectors of the input quantizing unit 5 are performed by the ends of the optical fibers 7.1.0-7.1.N. The spatial optical signal transformer 6 is a film 10 on which the output ends of the optical fibers 7.2.1-7.2.N are fixed. The output optical signal is transmitted through a coding converter to an indicator. The latter is constructed from the ends of the output fibers cut at an angle. Directly converting the position of the light of a naked beam on the oscilloscope screen into a signal to the indicator ensures the achievement of the set goal. 2 s. And 2 z. P. f-ly, 3 ill.

Description

one

The invention relates to an information-measuring technique and can be used in testing and testing universal oscilloscopes, in addition, the optical unit scaling the parameters of the studied processes can be used in a device for measuring time intervals.

The purpose of the invention is to increase speed and accuracy.

FIG. 1 shows a block diagram of a voltage measurement device; ya fig. 2 is a schematic diagram of an optical scaling unit; in fig. 3 - light guide element of the display.

The block diagram of a device for measuring the voltage of an electric current contains a universal oscilloscope 1, an optical unit 2 for scaling the parameters of the processes under study, a coding converter 3, and a digital indicator 4, which are connected in series using optical communication lines, such as fiber optic cables.

The optical scaling unit 2 (Fig. 2) consists of an input quantizer unit 5 and a transformer 6 of a spatial optical signal, which are respectively connected in series using optical lines 710 ... 7., Y, 7, j 0 ... 7 N connection and connector 8 (for example, detachable). The functions of the photodetectors of the quantizing unit 5 are performed by polished ends of the optical lines 710. .71w communication located at a fixed distance from each

0

five

0

five

0

five

0

friend Structurally, the input quantizing unit 5 and the transformer 6 are made in the form of opaque strips 9 and 10, on which optical communication lines with polished ends are rigidly fixed.

The detachable connector 8 consists of detachable fiber plugs interconnecting each pair of fibers ... 71N and 720 ... 7, N

The coding converter 3 contains a line of point photodetectors connected to the input optical lines of communication, the outputs of which are optically connected to the inputs of the corresponding OR elements of the first and second groups, signal selectors, one input of which is an input of the device, and the OR element whose output is connected to another input of the corresponding signal selector, as well as the third group of OR elements, whose inputs are connected to the outputs of the corresponding OR elements of the second group, and the fourth group of OR elements, the inputs to They are connected to the outputs of the corresponding OR elements of the second group, and the outputs are connected to the inputs of the OR elements, while the corresponding OR elements of the first and third groups are sequentially interconnected, and the outputs of the last OR elements of the first and third groups are connected to the inputs of the corresponding signal selectors to which output optical communication lines are connected.

Digital indicator 4 consists of K light guide display elements

(K - the number of bits of the indicator).

The display element (Fig. 3) contains fiber optic leads 11.0 ... 11.10, one-piece connectors 12.0 and 12.10, switching fibers 13, one-piece connectors 14.1 ... 14.10 (connectors 14.1, 14.2, 14.3, 14.4, 14.5, 14.6, 14.9 and 14.10 are not indicated) and segment fibers 15.1 ... 15.10.

Optical pins 11.0 ... 11.9 and 11.10 are connected to segmented optical fibers 15.1 ... 15.10 by connecting switches 13 and one-piece connectors 12.0 ... 12.10 and 14.1 ... 14.10, respectively, forming digits 0-9 and a zap sign dke, which is listed in the table.

Non-detachable connectors are made, for example, by welding the end of the optical leads 11.0 ... 11.10, the monofilaments of the optical fibers 15.1 ... 15.10 and the corresponding end of the tightly packed bundle of fibers of the optical fibers 13.

The light-emitting surface of the segments of each light-guide element of the display is a polished surface formed by the intersection of the fiber with a geometric plane at an acute angle to its longitudinal axis (the so-called oblique end); the length of the segmented optical fibers 15.1, 15.2, 15.3, 15.5, 15.7, 15.8, 15.9 is the same, the optical fiber 15.6 is 1.5 times larger, and the optical fibers 15.10, 15.4 is 2 times smaller.

The device works as follows.

In the circuit of the measurement device (Fig. 1), an optical unit is used for scaling the parameters of the process under investigation with a scaling factor M (transformer transformation ratio) equal to the selected oscilloscope deviation coefficient. The line of photodetectors (quantizing unit 5) of the optical unit 2 for scaling the parameters of the processes under study is set by the photosensitive surface of the photoreceivers close to the oscilloscope screen parallel to the vertical beam deflection line. Oscilloscope controls align the oscilloscope sweep line.

with the end of the optical line 7

1.0

connection, and the test point on the signal line of the signal - with the photodetector line of the quantizing unit 5. In this case, a signal appears in the optical communication line corresponding to the illuminated photodetector (photon flux) - input signal

scaling unit.

At the output of this scaling unit of the parameters of the processes under study, an output signal arises (the photon flux emitted by the co-source of the transformer’s source of light — the polished end of the corresponding optical line 1 g of communication), the magnitude of which is linearly transformed M times. Specified

The Q signal is input to encoding converter 3, in which it is converted into an optical combined unit-decimal sampled code.

5 In this case, the optical unit 2 scaling the parameters of the studied processes works as follows. The Yi value of the device input signal y (mm ordinate by the photoquicker of the quantizing unit 5, for example, at time t is the end of the optical line 7 hours 2E communication), for example, with ZY T, 0 mm, Y 23-4Y 23.0 mm.

Claims (4)

The value of Y, mm of the output signal of block 2, in the case of the use of, for example, a block with a scaling factor M 2 (at a value of 2.0 mV / mm) Y Y | M 23 dY-M 46.0 mm. This value of the ordinate Y corresponds to the value 46.0 mV measured by the voltage device. Invention Formula 5 1. A device for measuring the voltage of an electric current, containing an oscilloscope and a scaling unit for the parameters of the processes under study, characterized in that, in order to improve speed and accuracy, the optically coupled and serially connected coding converter and digital indicator are introduced into it, and the scaling unit of parameters The processes under study are optical, with its input being optically coupled to the oscilloscope screen, and the output to the input of the coding converter. 0 0 five 2. The device according to claim 1, which is tl, is that the encoding converter contains optical input and output lines of communication, and the digital indicator consists of light-guide display elements connected to its optical inputs. a spatial optical signal torus, which consists of point light sources located along a straight line at a fixed distance from each other, with the outputs of point light sources optically connected to the output of the optical parameter scaling unit 3. Optical block scaling JQ ditch of the investigated processes. parameters of the processes under study, containing an input quantizing unit, characterized in that, in order to increase speed and accuracy, a spatial optical signal transformer is introduced into it, the outputs of the input quantizing unit are connected via optical lines to the transformer inputs 4. The unit according to claim 3, that is, with the fact that the input quantizing unit contains point photodetectors located along a straight line at a fixed distance equal to the spatial quantization stage, and the outputs are photoreceiving. optically connected to the output of the input quantizer. Thebes 1 73 75.7 /V.7 1.Yo 12. Yu Fi.Z