RU95107518A - Degree indicator for explosion hazard of gas-air mixture - Google Patents

Degree indicator for explosion hazard of gas-air mixture

Info

Publication number
RU95107518A
RU95107518A RU95107518/25A RU95107518A RU95107518A RU 95107518 A RU95107518 A RU 95107518A RU 95107518/25 A RU95107518/25 A RU 95107518/25A RU 95107518 A RU95107518 A RU 95107518A RU 95107518 A RU95107518 A RU 95107518A
Authority
RU
Russia
Prior art keywords
sensor
output
pulse
gas
explosion
Prior art date
Application number
RU95107518/25A
Other languages
Russian (ru)
Other versions
RU2096776C1 (en
Inventor
А.И. Хвостов
В.А. Бакушев
П.А. Хайрулин
Original Assignee
Акционерное общество закрытого типа "Сфинкс"
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Акционерное общество закрытого типа "Сфинкс" filed Critical Акционерное общество закрытого типа "Сфинкс"
Priority to RU95107518A priority Critical patent/RU2096776C1/en
Publication of RU95107518A publication Critical patent/RU95107518A/en
Application granted granted Critical
Publication of RU2096776C1 publication Critical patent/RU2096776C1/en

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  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)

Abstract

FIELD: analysis of gas-air mixture with catalytic oxidation, mainly, for indication in systems for explosion prevention and for monitoring explosion-hazard degree of explosion-hazard objects. SUBSTANCE: apparatus includes stable-duty pulse generator, unit for supplying power to pickup in the form of pulse voltage source, synchronous detector with two inputs and one output. Control input of synchronous detector is connected with output of pulse generator forming pulses whose duty is set according to relation Q = Q = U/U,, where Q - duty factor, Us - voltage supplied to secondary devices, Uv - voltage supplied to primary devices (sensor). Apparatus allows to increase equivalent responsibility of sensor by Us/Uv times. That is especially effective for selective mode at which power supply system of sensor is connected directly with common voltage source intermittently and output power of sensor corresponds to nominal one; mean value of current passing through sensor upon such connection is by Q times less than pulse one and by Us/Uv time less than nominal current of sensor. Voltage chart and electric circuit are given in description of the invention. EFFECT: enhanced reliability of such indicator. 2 cl

Claims (1)

Индикатор степени взрывоопасности газо-воздушной смеси относится к области анализа газо-воздушных смесей с каталитическим окислением и может быть использован преимущественно для индикации в системах взрывопредупреждения и контроля степени взрывоопасности взрывоопасных объектов. Устройство содержит генератор импульсов стабильной скважности, устройство для питания датчика в виде источника импульсного напряжения, синхронный детектор на два входа и один выход, причем управляющий вход синхронного детектора подключен к выходу генератора импульсов, скважность выходных импульсов которого устанавливается по соотношению, указанному в описании. Устройство позволяет увеличить эквивалентную чувствительность сенсора в Un/Uн раз, что особенно эффективным является для селективного режима, при этом система питания сенсора подключается непосредственно к общему питающему напряжению импульсно и мощность выделяющаяся на сенсоре соответствует номинальной, а средний ток, потребляемый сенсором в таком включении, в Q раз меньше импульсного и в Un/Uh меньше номинального тока сенсора.The indicator of the degree of explosiveness of a gas-air mixture refers to the field of analysis of gas-air mixtures with catalytic oxidation and can be used mainly for indicating in explosion warning systems and monitoring the degree of explosiveness of explosive objects. The device contains a stable duty cycle pulse generator, a device for supplying the sensor in the form of a pulse voltage source, a synchronous detector with two inputs and one output, the control input of the synchronous detector being connected to the output of the pulse generator, the duty cycle of the output pulses of which is set according to the ratio specified in the description. The device allows to increase the equivalent sensitivity of the sensor by a factor of Un / U, which is especially effective for selective mode, while the sensor power supply system is connected directly to the total supply voltage pulsed and the power released on the sensor corresponds to the rated one, and the average current consumed by the sensor in this inclusion Q times less than the pulse and Un / Uh less than the rated current of the sensor.
RU95107518A 1995-05-16 1995-05-16 Indicator of degree of explosiveness of gas and air mixture RU2096776C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU95107518A RU2096776C1 (en) 1995-05-16 1995-05-16 Indicator of degree of explosiveness of gas and air mixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU95107518A RU2096776C1 (en) 1995-05-16 1995-05-16 Indicator of degree of explosiveness of gas and air mixture

Publications (2)

Publication Number Publication Date
RU95107518A true RU95107518A (en) 1996-07-27
RU2096776C1 RU2096776C1 (en) 1997-11-20

Family

ID=20167620

Family Applications (1)

Application Number Title Priority Date Filing Date
RU95107518A RU2096776C1 (en) 1995-05-16 1995-05-16 Indicator of degree of explosiveness of gas and air mixture

Country Status (1)

Country Link
RU (1) RU2096776C1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU170020U1 (en) * 2016-12-12 2017-04-11 Федеральное государственное бюджетное образовательное учреждение высшего образования "Московский авиационный институт (национальный исследовательский университет)" WIRELESS MULTIGAS SENSOR WITH REMOTE ACTIVATION BY RADIO SIGNAL

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2558006C2 (en) * 2013-11-06 2015-07-27 Открытое акционерное общество "Ангарская нефтехимическая компания" Alerter of critical pre-explosive concentrations
RU2716877C1 (en) * 2019-09-04 2020-03-17 Федеральное государственное бюджетное образовательное учреждение высшего образования "Юго-Западный государственный университет" (ЮЗГУ) Method of measuring gas concentration using a thermo-catalytic sensor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU170020U1 (en) * 2016-12-12 2017-04-11 Федеральное государственное бюджетное образовательное учреждение высшего образования "Московский авиационный институт (национальный исследовательский университет)" WIRELESS MULTIGAS SENSOR WITH REMOTE ACTIVATION BY RADIO SIGNAL

Also Published As

Publication number Publication date
RU2096776C1 (en) 1997-11-20

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MM4A The patent is invalid due to non-payment of fees

Effective date: 20070517