SU1273814A1

SU1273814A1 - Measuring equipment set

Info

Publication number: SU1273814A1
Application number: SU833662977A
Authority: SU
Inventors: Валерий Иванович Шугуров; Олег Васильевич Сухарев; Юрий Дмитриевич Сингаевский; Николай Гаврилович Камышан; Иван Иванович Волошиноновский
Original assignee: Московский Ордена Трудового Красного Знамени Горный Институт
Priority date: 1983-11-11
Filing date: 1983-11-11
Publication date: 1986-11-30

Abstract

Изобретение может быть использовано дл интегрировани сигналов длительно протекающих процессов. Цель изобретени - упрощение устройства при сохранении функциональных возможностей. Поставленна цель достигаетс путем введени новых функциональных св зей. Устройство содержит операционньм усилитель 2, конденсаторы 3,4,5, переключатель 7, блок 6 управлени переключателем, блок 6 регистрации. Введение новых функциональных св зей позвол ет снизить трудоемкость результатов измерений . 3 ил. ts5 СО 00 lf3. 1The invention can be used to integrate signals of long-running processes. The purpose of the invention is to simplify the device while maintaining its functionality. The goal is achieved by introducing new functional connections. The device contains an operational amplifier 2, capacitors 3,4,5, switch 7, switch control block 6, registration block 6. The introduction of new functional relationships reduces the complexity of the measurement results. 3 il. ts5 CO 00 lf3. one

Description

Изобретение относится к измерительной технике для автоматической записи на диаграммную бумагу длительных параметров технологического процесса.The invention relates to measuring equipment for automatic recording on graph paper of long process parameters.

Целью изобретения является упрощение устройства при сохранении его функциональных возможностей.The aim of the invention is to simplify the device while maintaining its functionality.

На фиг.1 представлена схема устройства; на фиг.2 - вид записи сигнала с технологического датчика непосредственно на ленту самописца; на фиг.З - вид записи сигнала при использовании комплекта' измерительной аппаратуры.Figure 1 presents a diagram of a device; figure 2 - view of the recording signal from the process sensor directly to the tape recorder; Fig. 3 is a view of recording a signal when using a set of 'measuring equipment.

Комплект измерительной аппаратуры содержит операционный усилитель 1, блок 2 питания устройства, блок 3 регистрации, блок 4 -управления переключателем, первую 5, вторую 6 и третью 7 группы контактов переключателя, первый 8 и второй 9 резисторы, первый 10, второй 11 и третий 12 конденсаторы, входной зажим 13, датчик 14 технологического параметра.The measuring equipment set contains an operational amplifier 1, a device power supply unit 2, a registration unit 3, a switch control unit 4, a first 5, a second 6 and a third 7 groups of switch contacts, the first 8 and second 9 resistors, the first 10, second 11 and third 12 capacitors, input terminal 13, sensor 14 of the technological parameter.

Блок 3 регистрации содержит самописец 15 и усилитель 16, блок 4 управления переключателем 'содержит реле 17 времени, выключатель 18, контакты. 19 реле 17 времени и обмотку20 шагового искателя переключателя, первая группа 5 контактов содержит подвижный контакт 21, первый 22, второй 23, третий 24 контакты, вторая группа 6 контактов содержит подвижный контакт 25, первый 26, второй 27 и третий 28 контакты, третья группа 7 контактов переключателя содержит подвижный контакт 29, первый 30, второй 31, третий 32 контакты.The registration unit 3 contains a recorder 15 and an amplifier 16, the switch control unit 4 contains a time relay 17, a switch 18, contacts. 19 time relay 17 and winding 20 of the step finder switch, the first group of 5 contacts contains a movable contact 21, the first 22, the second 23, the third 24 contacts, the second group of 6 contacts contains a movable contact 25, the first 26, second 27 and third 28 contacts, the third group 7 contacts of the switch contains a movable contact 29, the first 30, the second 31, the third 32 contacts.

При этом выход датчика 14.технологического параметра через входной зажим 13 и резистор 8 соединен с инвертирующим входом операционного усилителя 1 и контактами 23,28 и 30, выход операционного усилителя 1 соединен с первым выводом резистора 9, первыми выводами конденсаторов 10,11, 12 и первым входом блока 3 регистрации. Неинвертирующий вход операционного усилителя 1 соединен с соответствующим выходом блока 2 питания устройства, второй вывод резистора 9 соединен с контактами 22,27 и 32, второй вывод конденсатора 10 - с контактом 21, второй вывод конденсатора 11 - с контактом 28, второй вывод конденсатора 12 .- с контактомThe output of the sensor 14. technological parameter through the input terminal 13 and the resistor 8 is connected to the inverting input of the operational amplifier 1 and contacts 23,28 and 30, the output of the operational amplifier 1 is connected to the first output of the resistor 9, the first conclusions of the capacitors 10,11, 12 and the first input of block 3 registration. The non-inverting input of the operational amplifier 1 is connected to the corresponding output of the device power supply unit 2, the second output of the resistor 9 is connected to the contacts 22,27 and 32, the second output of the capacitor 10 to the contact 21, the second output of the capacitor 11 to the contact 28, the second output of the capacitor 12. - with contact

32, контакты 24,26 и 31 соединены вместе и с вторым входом блока 3 регистрации.32, pins 24.26 and 31 are connected together with the second input of the registration unit 3.

Потенциометр 33 соединен с блоком питания, а его подвижный контакт соединен с управляющим входом самописца 15.The potentiometer 33 is connected to the power supply, and its movable contact is connected to the control input of the recorder 15.

Устройство работает следующим образом.The device operates as follows.

Перед включением устройства в реле 17 времени устанавливается время выдержки (период интегрирования одним конденсатором). При этом конденсатор 12 включен в обратную связь операционного усилителя 1, и он производит интегрирование входного электрического сигнала, поступающего на входной зажим 13. По истечении времени интегрирования срабатывает реле 17 времени и своими конг тактами 19 включает обмотку 20 шагового искателя, который переключается, и его подвижные контакты 21, 25 и 29 занимают следующее положение, при котором -в цепь обратной связи операционного усилителя 1: включается конденсатор 10, конденсатор 12 подключается к входу блока регистрации, а конденсатор 11 разряжается на резистор 9. Срабатывание реле 17 времени приводит к повторному срабатыванию шагового искателя и новому переключению конденсаторов 10,11 и 12.Before turning on the device in the time relay 17, the exposure time is set (the integration period with one capacitor). In this case, the capacitor 12 is included in the feedback of the operational amplifier 1, and it integrates the input electrical signal supplied to the input terminal 13. After the integration time has passed, the time relay 17 is activated and turns on the coil 20 of the step finder, which switches, with its contacts 19 the movable contacts 21, 25 and 29 occupy the following position, in which - in the feedback circuit of the operational amplifier 1: the capacitor 10 is turned on, the capacitor 12 is connected to the input of the registration unit, and the capacitor 11 ra is charging resistor to 9. Triggering relay 17 time leads to repeated actuation and the stepping new switching capacitors 10,11 and 12.

На вход блока 3 регистрации оказывается подключенным тот конденсатор, который в предшествующий промежуток интегрирования накапливал заряд. При этом осуществляется интегрирование входного сигнала без ограничения времени.The capacitor that accumulated charge in the previous integration period turns out to be connected to the input of the registration unit 3. This integrates the input signal without time limitation.

Claims

The invention relates to a measurement technique for automatically recording long process parameters on chart paper. The purpose of the invention is to simplify the device while maintaining its functionality. Figure 1 presents the scheme of the device; FIG. 3 shows the signal recording from the process sensor directly to the recorder}; FIG. 3 shows the signal recording when using a set of measuring equipment. The instrumentation kit contains an operational amplifier 1, a unit 2 for powering the device, a unit 3 for registration, a unit 4 for controlling the switch. the reader, the first 5, the second 6 and the third 7 groups of switch contacts, the first 8 and second 9 resistors, the first 10, the second 11 and the third 12 capacitors, the input terminal 13, the sensor 14 of the technological parameter. The registration unit 3 contains the Samoisty 15 and the amplifier 16, the switch control block 4 contains the time relay 17, the switch 18, the contacts. 19 time relays 17 and a winding 20 of a step finder switch, the first group of 5 contacts contains a moving contact 21, the first 22, a second 23, a third 24 contacts, the second group 6.contacts contains a moving contact 25, the first 26, a second 27 and a third 28 contacts, a third The group of 7 contacts of the switch contains a movable contact 29, the first 30, the second 31, the third 32 contacts. The output of the sensor 14. technological parameter through the input terminal 13 and the resistor 8 is connected to the inverting input of the operational amplifier 1 and pins 23,28 and 30, the output of the operational amplifier 1 is connected to the first output of the resistor 9, the first terminals of the capacitors 10,11 12 and the first entrance of the block 3 registration. The non-inverting input of the operational amplifier 1 is connected to the corresponding output of the device power supply unit 2, the second terminal of the resistor 9 is connected to the contacts 22.27 and 32, the second terminal of the capacitor 10 is connected to contact 21, the second terminal of the capacitor 11 is connected to contact 28, the second terminal of the capacitor 12 .- with contact 14, 2 32, contacts 24,26 and 31 are connected together and with the second input of block 3 of registration. Potentiometer 33 is connected to power supply unit 2, and its movable contact is connected to the control input of the recorder 15. The device operates as follows. Before switching on the device, a holding time (the integration period of one capacitor) is set in the time relay. In this case, the capacitor 12 is included in the feedback of the operational amplifier 1, and it integrates the electrical input signal to the input terminal 13. When the integration time has elapsed, the time relay 17 is triggered and, with its clock cycles 19, switches on the winding 20 of the step finder, which switches, and its moving contacts 21, 25 and 29 occupy the following position, in which in the feedback circuit of the operational amplifier 1: the capacitor 10 is turned on, the capacitor 12 is connected to the input of the recording unit 3, and the capacitor 11 is discharged to the resistor 9. The operation of the time relay 17 causes the step finder to re-activate and switch capacitors 10.11 and 12 to the input. At the input of the recording unit 3, the capacitor that has been accumulated during the previous integration period is connected. This integrates the input signal without time limitation. Claims An instrumentation kit containing an operational amplifier whose inverting input is connected to an input terminal through a first resistor, and a non-inverting input to a common wire, three capacitors, a switch, a switch control unit and a recording unit, which simplifying while maintaining the functionality, the first, second and third capacitors are connected together with the output of the operational amplifier and

the first input of the registration unit, the second output of the first capacitor is connected to the movable contact of the first contact group of switches, the second step of the second capacitor is connected to the movable contact of the second contact group of the switch, the second step of the third capacitor is connected to the movable contact of the third group of switch contacts, the first contact of the first contact group is connected with the second contact of the second group of contacts, the third contact of the third group of contacts of the switch and the first output of the second resis Ora, the second output of which is connected to the output of the operational amplifier - the second contact of the first group of contacts is connected to the third contact of the second group of contacts, the first contact of the third group of switch contacts and the inverting input of the operational amplifier, the third contact of the first group of contacts is connected to the first contact of the second group of contacts , the second contact of the third group of contacts of the switch and the second input of the registration unit.

t

100

t