mechanical detector

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• Mechanical systems drawing — is a type of technical drawing that shows information about heating, ventilating, and air conditioning;[1] it is a powerful tool that helps analyze a complex system.[2] These drawings are often a set of detailed drawings used for construction… …   Wikipedia

• Mechanical television — This schematic shows the circular paths traced by the holes in a Nipkow disk. Mechanical television (also called televisor) was a broadcast television system that used mechanical or electromechanical devices to capture and display video images.… …   Wikipedia

• Mechanical resonance — This article is about mechanical resonance in physics and engineering. For a general description of resonance, see resonance. For mechanical resonance of sound including musical instruments, see acoustic resonance. For the music album by the… …   Wikipedia

• Defect detector — Overview of a wheel impact detector installation A defect detector is a device used on railroads to detect axle and signal problems in passing trains. The detectors are normally integrated into the tracks and often include sensors to detect… …   Wikipedia

• Metal detector — A U.S. Army soldier uses a metal detector to search for weapons and ammunition in Iraq A metal detector is a device which responds to metal that may not be readily apparent. The simplest form of a metal detector consists of an oscillator… …   Wikipedia

• Heat detector — A heat detector is a device that responds to changes in ambient temperature. Typically, if the ambient temperature rises above a predetermined threshold an alarm signal is triggered. In the case of sprinkler systems, water will be released to… …   Wikipedia

• Motion detector — A motion detector attached to a garage A motion detector is a device for motion detection. That is, it is a device that contains a physical mechanism or electronic sensor that quantifies motion that can be either integrated with or connected to… …   Wikipedia

• Aspirated smoke detector — An aspirating smoke detector is a type of smoke detector, based on a nephelometer that is capable of detecting the presence of microscopic particles of combustion also known as (smoke) suspended in air by detecting the light scattered from the… …   Wikipedia

• Currency detector — A currency detector is a device that determines if a piece of currency is, or is not, counterfeit. These devices are used in vending machines that accept payment and dispense a product to a customer. They are also used in change machines and in… …   Wikipedia

• Water detector — A Water detector is a small electronic device that is designed to detect the presence of water and alert humans in time to allow the prevention of water damage. A common design is a small device that lays flat on a floor and relies on the… …   Wikipedia

• Lackawanna Cut-Off — The westbound Lackawanna Limited comes off the Pequest Fill shortly after the opening of the Lackawanna Cut Off. Taken from the signal tower at the east end of Greendell Siding, this early 1912 photo was used as a template for a Phoebe Snow… …   Wikipedia