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Reedschalter – Wikipedia

Reedschalter (oder Reedkontakte, historisch auch Herkon) sind im Glasrohr (hermetisch) eingeschmolzene Kontaktzungen aus einer Eisen-Nickellegierung, die durch ein Magnetfeld betätigt werden.. Die Vorsilbe Reed (englisch für Rohrblatt, norddeutsch Reet) bezieht sich entweder auf die Ähnlichkeit des Glaskolbens der Schalter zu den Fruchtständen von Schilfpflanzen oder auf die …

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Sensor fotoeléctrico - Wikipedia, la enciclopedia libre

Un sensor fotoeléctrico o fotocélula es un dispositivo electrónico que responde al cambio en la intensidad de la sensores requieren de un componente emisor que genera la luz, y un componente receptor que percibe la luz generada por el emisor.. Todos los diferentes modos de sensado se basan en este principio de funcionamiento. Están diseñados especialmente para la detección ...

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Oxygen sensor - Wikipedia

An oxygen sensor (or lambda sensor, where lambda refers to air–fuel equivalence ratio, usually denoted by λ) is an electronic device that measures the proportion of oxygen (O 2) in the gas or liquid being analysed.. It was developed by Robert Bosch GmbH during the late 1960s under the supervision of Dr. Günter Bauman. The original sensing element is made with a thimble-shaped zirconia ...

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Led - Wikipedia, la enciclopedia libre

Un diodo emisor de luz o led [6] [n 1] (también conocido por la sigla LED, del inglés light-emitting diode) es una fuente de luz constituida por un material semiconductor dotado de dos trata de un diodo de unión p-n, que emite luz cuando está activado. [7] Si se aplica una tensión adecuada a los terminales, los electrones se recombinan con los huecos en la región de la ...

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MQ-135 Gas Sensor Pinout, Features, Alternatives ...

· Where to use MQ-135 Gas sensor. The MQ-135 Gas sensors are used in air quality control equipments and are suitable for detecting or measuring of NH3, NOx, Alcohol, Benzene, Smoke, CO2. The MQ-135 sensor module comes with a Digital Pin which makes this sensor to operate even without a microcontroller and that comes in handy when you are only trying to detect one particular gas…

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Paramagnetism - Wikipedia

A gas of lithium atoms already possess two paired core electrons that produce a diamagnetic response of opposite sign. Strictly speaking Li is a mixed system therefore, although admittedly the diamagnetic component is weak and often neglected. In the case of heavier elements the diamagnetic contribution becomes more important and in the case of metallic gold it dominates the properties. The ...

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LED-Leuchtmittel – Wikipedia

LED-Leuchtmittel sind elektrische Lichtquellen, die zum Erzeugen des Lichts Leuchtdioden (kurz LEDs, von englisch light-emitting diodes) einsetzen.. Wie auch die Kompaktleuchtstofflampen zählen sie zu den energiesparenden Leuchtmitteln (ESL). Die Nutzungsdauer von LED-Leuchtmitteln wird mit bis zu Stunden angegeben. Bei 2700 K erreichen konventionelle Glühlampen eine Lebensdauer von ...

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Carbon dioxide sensor - Wikipedia

A carbon dioxide sensor or CO 2 sensor is an instrument for the measurement of carbon dioxide gas. The most common principles for CO 2 sensors are infrared gas sensors and chemical gas carbon dioxide is important in monitoring indoor air quality, the function of the lungs in the form of a capnograph device, and many industrial processes.

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Gas sensor Wikipedia

Gas sensor. A gas detector is a device that detects the presence of gases in an area, often as part of a safety system. A gas detector can sound an alarm to operators in the area where the leak is occurring, giving them the opportunity to leave. This type of device is important because there are many gases that can be harmful to organic life, such as humans or animals. Gas detectors can be ...

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¿Qué es un sensor? Tipos y diferencias – PrototipadoLAB

· Un sensor es un tipo de transductor que transforma la magnitud que se quiere medir o controlar, en otra, que facilita su medida. Pueden ser de indicacion directa ( un termometro de mercurio) o pueden estar conectados a un indicador (posiblemente a traves de un convertidor analogico a digital, un computador y un visualizador ) de modo que los valores detectados puedan ser leidos …

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Leuchtdiode – Wikipedia

Eine Leuchtdiode (kurz LED von englisch light-emitting diode, dt. ‚lichtemittierende Diode‘, auch Lumineszenz-Diode) ist ein Halbleiter-Bauelement, das Licht ausstrahlt, wenn elektrischer Strom in Durchlassrichtung fließt. In Gegenrichtung sperrt die LED. Somit entsprechen die elektrischen Eigenschaften der LED denjenigen einer Wellenlänge des emittierten Lichts hängt vom ...

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Gassensor – Wikipedia

History. Gas leak detection methods became a concern after the effects of harmful gases on human health were discovered. Before modern electronic sensors, early detection methods relied on less precise the 19th and early 20th centuries, coal miners would bring canaries down to the tunnels with them as an early detection system against life-threatening gases such as carbon ...

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Diodo láser - Wikipedia, la enciclopedia libre

Esta página se editó por última vez el 31 dic 2020 a las 18:46. El texto está disponible bajo la Licencia Creative Commons Atribución Compartir Igual ; pueden aplicarse cláusulas usar este sitio, usted acepta nuestros términos de uso y nuestra política de privacidad. Wikipedia® es una marca registrada de la Fundación Wikimedia, Inc., una organización sin ánimo de ...

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Reed switch - Wikipedia

The reed switch is an electrical switch operated by an applied magnetic was invented in 1922 by professor Valentin Kovalenkov at Leningrad Electrotechnical University, and later evolved at Bell Telephone Laboratories in 1936 by Walter B. Ellwood into the reed relay. In its simplest and most common form, it consists of a pair of ferromagnetic flexible metal contacts in a hermetically ...

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MQ2 Gas Sensor Pinout, Features, Equivalents & Datasheet

· The MQ-2 Gas sensor can detect or measure gasses like LPG, Alcohol, Propane, Hydrogen, CO and even methane. The module version of this sensor comes with a Digital Pin which makes this sensor to operate even without a microcontroller and that comes in handy when you are only trying to detect one particular gas. When it comes to measuring the gas in ppm the analog pin has to …

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LED - Wikipedia

Il diodo a emissione di luce (acronimo inglese: LED; in inglese: Light Emitting Diode), in elettronica, indica un dispositivo optoelettronico che sfrutta la capacità di alcuni materiali semiconduttori di produrre fotoni attraverso un fenomeno di emissione spontanea quando attraversati da una corrente elettrica.. Il materiale semiconduttore presenta due zone drogate differentemente in modo da ...

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Category:Gas sensors - Wikipedia

Electrochemical gas sensor; Exhaust gas analyzer; Explosive gas leak detector; G. Gas detector; H. Hydrogen sulfide sensor; I. Infrared open-path detector; Infrared point sensor; N. Nitrogen oxide sensor ; Nondispersive infrared sensor; O. Oxygen sensor; P. Pellistor; S. Severinghaus electrode; Z. Zinc oxide nanorod sensor; This page was last edited on 28 November 2019, at 01:48 (UTC). Text is ...

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Detectores de gás e tecnologia de detecção de gás ...

Detectores de gás pessoais e de área oferecem uma solução confiável para qualquer aplicação. Com tecnologia de sensores, os detectores de gás medem e exibem a concentração de gases no ar. Quando uma leitura de gás atinge um certo nível, o detector de gás começa a emitir um alarme. Os detectores de gás evitam a exposição ...

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Flüchtige organische Verbindungen – Wikipedia

Flüchtige organische Verbindungen (englisch volatile organic compounds, kurz VOC) ist die Sammelbezeichnung für organische, also kohlenstoffhaltige Stoffe, die bei Raumtemperatur oder höheren Temperaturen durch Verdampfen (umgangssprachlich „Verdunsten“) in die Gasphase übergehen, also flüchtig sind. Das Gas Methan, CH 4, ist oft nicht eingeschlossen, manchmal explizit …

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