SU1529267A2 - Multichannel device for for monitoring object quality parameters - Google Patents

Abstract

The invention relates to a measurement technique and can be used to control the quality of products. The aim of the invention is to expand the field of application of the device. The device contains terminals connected to the signal normalizers. The outputs of the normalizers are connected to the summation unit, at the output of which the display unit is connected. In the normalizer, the circuit connecting the first input terminal to the output terminal contains a source of bias voltage. 3 il.

Description

The invention relates to measurement technology, can be used to control the quality of products and is an improvement of technical solution according to Avto No. 1322339.

The aim of the invention is to expand the field of application of the device.

Figo depicts a functional diagram of a multi-channel device for monitoring the quality parameters of an object; Fig. 2 illustrates a unit voltage normalizer of a device through which measured signals are connected; FIG. 3 shows the output characteristics of the normalizers in several channels with different requirements for the optimality of the input signals.

The device contains terminals 1 ,, 1, .o o, 1 „(fig o 1), connected to the normalizers 2, 2 ,, signals, s. The outputs of the normalizers are connected to the summation unit 3, at the output of which the display unit 4 is connected.

In the normalizer, the circuit connecting the first input terminal 5 (FIG. 2) with the output terminal 6 contains a bias voltage source 7, which through a normally open contact 8 of the first relay 9 is connected in parallel with the normally closed contact 10 of the relay 9, and the polarity switch, made on pins 11-14 of relay 9, Source 7 of bias voltage through voltage divider 15, normally closed contact 16 of relay 9 and normally open contact 7 of second relay 18 is connected to the circuit of the second input terminal 19, which is connected in series with normally closed fifth contact 11 relay 9 includes a variable resistor 20 and key member 21. The normalizer voltage also comprises first 22 and second 23 bodies zero, first inputs of which are connected to the first input terminal 5 and the point D AC (A compound

INJ

the resistor 20 and the contact 11. To the outputs of the zero-body 22 are connected the winding terminals of the relay 9, and to the outputs of the zero-organ 19 - the leads of the winding of the relay 18.

The device works as follows.

The input signals of Fig. 1) from terminals L, ..., 1c through the normalizers 2, o., 2 enter block 3, where Qc is summed and fed to indication block 4. In the channels, where there is one optimal value in the tolerance zone, using variable resistors installed in each of the normalizers 2 signals, the basic zero-organs are adjusted to trigger them when fed to the input cells. the values of the measured parameters corresponding to the optimal values for these signals. With an increase in the value of the measured parameter above the optimum at the outputs of the normalizers of the corresponding channels, a signal is formed below the value corresponding to the optimal one. For channels where any input value is optimal, within the tolerance range

15

20

25

hp

the zero-bodies of the normalizer 2j are set to trigger at values of the input signal at the boundaries of the tolerance. When the input signal values in the tolerance zone at the output of the normalizer 2, a signal- is formed, corresponding to the optimal value.

Let us describe the operation of the device for channels in which any value of the input signal in the tolerance zone is optimal.

At the first stage, the normalizers are adjusted ;, for this, the zero-body 23 is set to trigger when the value of the input signal and the zero-body 22 to trigger when the value of the input signal

la Xg, | , key element 21 in this channel opens

Further work consider the example of one channel. When a signal arrives at its input, the output signal of the normalizer 2j has the value depicted in section abb of the output characteristic (FIG. 3), since in this case the null organ 23 activates the relay 18, which through the contact 13 connects to the output a signal equal to Xj, “through the divider 15 and the contact 16 of the relay 9. At the input signal,

5 is larger than X., the null organ 22 includes a relay 9, which opens contact 16-a, and the input characteristic of the normalizer 2 has the form shown in section 6 (fig. 3).

0

five

0

Claims (1)

Invention Formula Multichannel device for monitoring the quality parameters of objects by avtosv. № 1322339, on t-l and - so that with, with purpose. expanding the field of application of the device, in each normalizer additionally, a voltage divider, a key element, a second relay, and a second null organ, whose inputs are connected, are connected to the first input terminal of the normalizer and to the second output of the variable resistor, and the outputs - to the terminals of the winding of the second relay, the fixed contacts of the voltage divider are connected to the outputs of the bias voltage source, the movable contact of the divider is connected via a series-connected normally closed contact of the first relay and is normally open The second contact of the second relay is with the output terminal of the nor-, Malyzator and the output of the key element, whose input is connected via a normally closed contact of the first relay to the second output of the variable resistor. five 0