SU905825A1

SU905825A1 - Integrator

Info

Publication number: SU905825A1
Application number: SU802924938A
Authority: SU
Inventors: Гусейн Гейдар Оглы Гасанов; Эльдар Имран Оглы Кулиев; Нахшун Масандилович Гиреев
Original assignee: Институт Физиологии Им.А.И.Караева Ан Азсср
Priority date: 1980-09-26
Filing date: 1980-09-26
Publication date: 1982-02-15

Description

II

Изобретение относитс к автомати ке и вычислительной технике и может быть применено в биомедицинской аппаратуре .The invention relates to automation and computer technology and can be applied in biomedical equipment.

Известен интегратор, содержащий формирователь обратной св зи, пороговый блок, счетчик импульсов l3.A known integrator comprising a feedback driver, a threshold unit, a pulse counter l3.

Недостатком этого интегратора вл етс ,сложность схемного исполнени .The disadvantage of this integrator is the complexity of the circuit design.

Наиболее близким отехническим решением к изобретению вл етс интегратор , содержащий счетчик, преобразователь напр жени в частоту, селектор уровн , датчик входного сигнала и датчик коррекции нулевой линии , элемент И, дифференциальный усилитель 21.The closest solution to the invention is an integrator comprising a counter, a voltage-to-frequency converter, a level selector, an input signal sensor and a zero-line correction sensor, AND element, a differential amplifier 21.

Недостатком этого интегратора вл етс невысока точность интегрировани , обусловленна тем, что наличие бипол рного сигнала требует увеличени динамического диапазона в 2 раза, и коррекци нул неэффективна при импульсных сигналах малойThe disadvantage of this integrator is the low accuracy of the integration, due to the fact that the presence of a bipolar signal requires a twofold increase in the dynamic range, and the correction zero is ineffective when the pulse signals are small.

(5) ИНТЕГРАТОР(5) INTEGRATOR

скважности, потому что искажени , вносимые блоком коррекции, достаточно велики.duty ratio, because the distortions introduced by the correction unit are quite large.

Целью изобретени вл етс повышение точности интегрировани .The aim of the invention is to improve the accuracy of integration.

Указанна цель достигаетс тем, что в интегратор, содержащий дифференциальный усилитель, к выходу которого подключен вход селектора This goal is achieved by the fact that the integrator containing the differential amplifier, to the output of which a selector input is connected

10 уровн , npeo6pa3OBaTejib напр жени в частоту и счетчик, выход которого вл етс выходом интегратора/ введены ключ и селектор пол рности входного сигнала, вход которого в15 л етс входом интегратора, а выходы подключены ко входам дифференциального усилител , выход которого через последовательно включенные ключ и преобразователь напр жени в частоту Level 10, npeo6pa3OBaTejib voltage to frequency and counter, the output of which is the integrator output / input key and polarity selector of the input signal, the input of which is input to the integrator input, and the outputs connected to the inputs of the differential amplifier, the output of which through the serially connected key and voltage to frequency converter

Claims

20 is connected to the counter input of the counter, and the control input of the key and the installation input of the counter are connected to the outputs of the level selector. The drawing shows an integrator diagram. The integrator consists of a differential amplifier 1, a polarity selector 2 of the input signal, connected to the inverting 3 and noninverting j inputs of the differential amplifier. The output of amplifier 1 is connected to the input of key 5 and level selector 6. The output of level selector 6 is connected to the control input of key 5 whose output is connected in series with the voltage converter into frequency 7 and. the estimator 8. The installation input of the counter 8 is connected to the output of the level selector 6., The device operates as follows. Amplifier 1 converts the input signals of any polarity into the unipolar output signal by means of the polarity selector 2. When the scientific research institute reaches a certain threshold value, the level selector 6 is triggered, which allows to exclude operation of low amplitude noise during pauses between the signals Level selector 6 translates counter 8 e working condition and opens the call 5 at the output of which a signal appears, which is converted by the converter 7 into a frequency one, the Sweeper 8 counts the pulses, the number of which is directly proportional to the emoy signal area. The application of the proposed integrator allows us to simplify the circuit by eliminating the correction unit and the input signal sensor and to improve the integration accuracy by about 1.5-2 times. Claims of the invention: An integrator comprising a differential amplifier, to the output of which a level selector input is connected, a voltage to frequency converter, and a counter whose output is an integrator output, characterized in that, in order to improve the integration accuracy, a key and a polarity selector are entered into it. the input signal, the input of which is the integrator input, and the outputs are connected to the inputs of a differential amplifier, the output of which through a series-connected switch and voltage-frequency converter is one with the counting input of the counter, and the key input control and FITTING, ny associated input of the counter with the output level of the selector. Sources of information taken into account in the examination 1. The author's certificate of the USSR W, cl. G 06 G 7/18, 197.

2. USSR author's certificate ff 5 599 “, class, G 06 G 7/18, 1975 (prototype).

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