In studying the subject device project open. Turn off the power by using the light bulb, Asher signed different types of Group research has been gathering information from the document. Articles and related research by offering, respectively. As follows: 2.1 light bulb. Hot bulb or tube heating or an ordinary incandescent bulb (incandescent light bulb, incandescent: English lamp or incandescent light globe) by light to heat a filament wire, metal, high temperature and emitting even. Hot filling is exposed to air, no protection by an inert gas filled glass tube or vacuum. In halogen lamp Chemical processes is a metal filament, Which extends lamp life, this power by the following Terminal (terminal feed-through) cord or wire embedded in the glass tube is mainly used in the electrical outlet which support electrical and mechanical streams. The electrical plug to the electric Terminal tube Simple hot incandescent bulbs produced in several sizes. Position light and resistant, 1.5 volt potential difference from a 300-Volt rail until the tubes of this type does not require an external control device. Precious and less maintenance work as well as all of the DC or AC power. For this reason, hot plain incandescent bulbs, so widely used in households as well as commercial and electrical, portable electric lamps, such as a desk. Car headlights and flashlights and electrical for decoration and advertising. How to take advantage of some simple hot incandescent bulbs use heat generated from filament. Hatching hatching box concept for poultry. Heat lamp for the defendant try garden environment (vivarium) of reptiles [1] [2] Infrared heating in thermal processing and drying in the industry. This excess heat energy required to increase the air conditioning systems of buildings. Another electric bulbs, gradually replacing the use of conventional hot bulb side, i.e multiple fluorescent tubes, compact fluorescent bulb (tube chopsticks), Cold cathode fluorescent tube high pressure gas compression, and light emitting diode. These newer technologies development ratio of visible light per heat production. Some Wayne County hotels 2.2 light sensor The light sensor is a sensor that is used in every system, such as dotmaetrik, ingchet and laser, which will be the advantages and disadvantages of a sensor compensation contacts. Symptoms will not occur, that is, Bad Contact, there will be a light sensor 2 is the device. 1 light transmission will use LED (Light Emitting Diode)., which is a type of light emitting diode (infared) are not visible to the naked Dua Oita airport. 2. the Photo Transistor is used, exposure, which will work as the on/off switch, that is, if the receive light from a diode switch = off, and on the contrary, if the Photo is not receiving light (the light is obstructed) = switch open, in other words, a virtual electronic switches that are renowned Photo Transistor does not feel dirty or Bad Contact occurred, but the downside is there will be dust shield lens instead. So there is a problem in the printer's work. The work of a light sensor. Usually must have acted like light off cause if there is a paper sensor will turn the light off or well-known, if sensor is home (Home Position Sensor) will have fins under the print head, which is a base open to light off is the default setting for new work each time it is turned on use. Thus, in rhythm, light on or off via toward this photo in the microcontroller motherboard circuitry interprets the electrical signals in accordance with Lo Chik is on digital. Lo, Hi (Hi = High = high = H = 5 volts), (L = Lo = Low = less = 0 Volts). Summary according to the circuit below. If blocked = krasaeng Photo open switch i2 flow through the legs to the gate array H or 5 volts Chik Lo.
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