SU279190A1 - COMPUTATIONAL DEVICE FOR PROCESSING DATA OF CHROL1ATOGRAPHIC ANALYSIS - Google Patents

Description

This invention relates to the field of computing technology and is intended to automate the process of processing chromatographic analysis data.

Devices are known that contain converters, clock clock reiiepaTOp, result counter, time block, control device.

A disadvantage of the known devices is the use of strobe signals and a constant duration, which leads to a decrease in the accuracy of processing the analysis data.

The described invention improves the noise immunity and reliability of operation by analyzing mixtures containing components with different processing times using a gating signal of variable duration. To do this, a trigger is entered into the device, a single input of which is connected to the output of the comparator, and its output is connected to one of the inputs of the valve, the other input of which is connected via a clock cell to the output of the generator, and the output of the valve is connected to the input of the result counter, the output of which is connected to zero trigger input.

Kif,

and K-ijl,

where C; -concentration of the i-ro component in the mixture; KI is the normalizing factor; / j is the integral value of the nickname of the nth component; n is the number of components in the analyzed mixture. The scheme of the described device is given.

in the drawing.

The input information in the form of the angle of rotation nots the bus 1 to the transducer 2 shaft-number. The converter is polled at regular intervals by pulses.

from a clock cell 3 associated with a 4 clock pulse generator. The code of the current value of the integrated function, read from the converter, goes to the converter 5, the code — an unstar code, and further, in the form

unitary code, cumulative counter

6 results, where the integral value of the nickname is formed; i-ro component. After the end of the peak at a signal from the control device

7, the obtained integral value is transmitted to the RAM block 8.

The multiplication is normalizing: the Ki is stored, stored in a block of 9 constant coefficients, is realized by repeatedly transmitting the SANPI / J memory from the 8 block with a unitary code (block 5) and accumulating the result in the counter 6. In this case, the multiplier Ki from the | block 9 is inserted into the younger cells of counter 6.

To identify comonents in the device, a time counter W is used, to the input of which through a divider // and a valve 12, controlled by control unit 7, pulses of the reference sequence, for example, from the output, are sent to her cell 3. Time counter 10 is connected by code buses with a 13 code comparator, sraviivayush, they code in the counter with the code corresponding to them, the time of the beginning of the generation of the strobe signal, which is stored in the block 14 set time. The output of the comparator is associated with a single trigger input 15 and a polling bus of the time acquisition unit 14. At the moment of equality of codes at the inputs of the comparator, block 14 is polled, and the additional code is current, its time (close ti) is fed to the result counter 6. At the same time, the trigger 15 goes to "1, opening the valve 16, which passes support pulses to the input of the counter 6. The zero input of the trigger is connected to the output of the counter 6 and to the control device 7.

At the time the analyte is introduced into the chromatograph, control unit 7 opens valve 12, and pulses from cell 3 begin to flow to the frequency divider //. The division factor, divider and frequency of the reference pulses are selected depending on the required duration of the strobe signal and the discreteness of the measurement of the current experience time. From the divider // pulses arrive at the time counter 10. If the current time code coincides with the set in time 14 set at the output of the comparator 13

a signal appears, which, by polling block 14, enters an additional current time code (box 17) at an empty moment 6 (the switch 17 and translates the trigger 15 into "1. Through the opening valve 16, reference pulses (for example, with cells 3) enter the input counter 6. Since the additional code is recorded in the counter of the current time, the filling time of the counter is obviously proportional to it, and therefore approximately proportional to the retention time / and can be taken as the duration of the gating signal. By equalizing device 7 of the next chromatographic peak, the strobe signal is interrupted; counter 6, via bus 18, is reset to "O, translated to" O and trigger 15 ..

Subject invention

A computing device for processing chromatographic analysis data comprising a result counter, a time counter, a set time block, a comparator, converters, a memory unit, a control unit, a pulse generator, and a clock cell, characterized in that, in order to increase the reliability of the device, a trigger, a single input of which is connected to the output of the comparator, and its output is connected to one of the inputs of the valve, the other input of which is connected via a clock cell to the output of the generator, and the output of the valve Connected to the input of the result counter, the output of which is connected to the zero input of the trigger.