Results 1 - 15 of about 248 sawaal for "detectors"
when another object is brought closer to it. The human body is a great charge-holding object capacitor this biological property is called body capacitance, and sensitive capacitive detectors can be made to function as proximity detectors. The capacitive property of the human body is also helpful in making touch switches, such as those used in touch-activated lamps. The lamp constantly charges and discharges
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Computers & Technology by krishna at 10:22 PM on May 31, 2008
such as manual pull stations, smoke detectors and heat detectors in a building are all hooked up to a control panel. When a device connected to the panel is activated, the panel will for example directly call, such as smoke detectors, heat detectors, sprinkler flow switches, or the alarm is set off manually.The Purpose of Fire AlarmsA Fire alarm helps you to be protected in case of fire breakouts. This device
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Exams, Education & References by rajesh at 7:09 PM on February 03, 2008
A Metal Detector is an electronic instrument which detects buried metallic objects by inducing and measuring its electromagnetic field....Now a days metal detector is used every where for security purpose.The key to a functioning metal detector is the presence of eddy currents generated by conductive objects in the environment. Just like pushing a paddle through a lake of water can cause little
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Computers & Technology by Justclick at 7:55 PM on December 05, 2007
Yes they are popularly known as motion detectors and they are available in the market and they work on following principles:There are basically three types of sensors used in motion detectors
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Computers & Technology by Anish at 12:13 AM on March 04, 2008
detector items. Transmitters of all kinds for all types of spy gadgets. Voice changer kits Popular choices include sound amplifiers, wireless room bugs, voice stress analyzers, listening device jammers are not breaking any laws by purchasing these pieces to make spy gadgetsHere are some of the items you may be interested in purchasing. You will find all sorts of kits including motion and sound detector items
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Computers & Technology by sumit lakra at 10:38 PM on August 05, 2008
standby screen Multimedia key Ambient light detector - used to optimize display brightness and power comsumptionImaging 3.2 megapixel camera 2048 x 1536 pixels with up to 20x digital zoom Settings for night Edition Active standby screen Multimedia key Ambient light detector - used to optimize display brightness and power comsumptionImaging 3.2 megapixel camera 2048 x 1536 pixels with up to 20x digital zoom
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Computers & Technology by Sameer D. at 8:48 PM on June 11, 2008
John Larson. He was a medical student at the University of California, and made this invention in 1921. It is also called a polygraph.
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Do It Yourself by premkumar v at 1:44 PM on January 01, 2009
yes it is lie detector only....A polygraph popularly referred to as a lie detector is an instrument that measures and records several physiological responses such as blood pressure, pulse, respiration
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News & Current Affairs by natwar lal at 4:21 PM on November 20, 2008
A Lie Detector although not the best of evidences is not admitted by a court.It is called a Polygraph.A Polygraph machine is yet to be mastered to be believed. Known criminals have been found to play
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Miscellaneous by Ramanamurty at 6:08 PM on November 13, 2008
detection methods are beat frequency oscillation, very low frequency, and pulse induction....A metal detector uses an electromagnetic field to detect the presence of a concealed metal object. The range depends on the strength of the field, and is usually less than one meter from the search head. The three detection methods are beat frequency oscillation, very low frequency, and pulse induction. Metal detectors were first
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Electronics & Gadgets by ahshan at 12:47 AM on October 25, 2008
Fire Systems consists of a Fire Detection System bFire Alarm System.Fire Detection Systems consists of Smoke Detectors, Fire Detectors, special detection systems like VESDA.Fire Alarm Sytems consists
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Lucknow by Neha Bist at 2:30 PM on October 18, 2008
Hi Dustin,Here are few dealers who sell LPG gas Leak Detector. Zicon is one of the best however there are few others that you should check it with the dealers.Creative Marketing ConceptsBuilding : No
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Bangalore by dustin weeks at 4:05 AM on October 14, 2008
the circuit diagram for lie detector.My personal suggestion for you is to stay away from all these activities , it may create trouble for you.sites are:1 http://www.hackcanada.com/ice3/wetw are/liedetectorcircuit.html2 http://blog.makezine.com/archive/20 06/01/liedetectorelectronickita n.html3 http://www.electrokits.com/Misc/Met al-Detector-Circuit-Diagram4 http://www.electro-tech-online.com/ electronic
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Computers & Technology by Implore I at 6:18 PM on October 12, 2008
A list of Metal Detectors dealing companies..Grauer & Weil India Limited - 079 25471953MB Metal Corporation - 079 22125129Hpc Corporation - 079 26431870Aa Shriji Security System - 079 26563054 link for a complete list of metal Detectors selling companies and dealers...http://yellowpages.sule kha.com/ahmedabad/business-services /security-systems/metal-detectors/6 35.htmNote: Please ignore
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Ahmedabad by ajay shew at 5:36 AM on October 06, 2008