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Page Name: light dependent resistor ppt download
Created at: Tuesday 02nd of April 2013 07:43:46 AM
Last Edited Or Replied at :Tuesday 02nd of April 2013 07:43:46 AM
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Posted by: project source code cheker
Created at: Tuesday 14th of August 2012 02:19:28 AM
Last Edited Or Replied at :Tuesday 14th of August 2012 02:19:28 AM
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|onnected to the terminal leads. Use a multimeter to measure its resistance when light is shine on it
and when it is placedin a dark place. This will help to enhance your knowledge of the concept as to
how the LDR works.|
Simple Light Dependent Resistor Description
The Light Dependent Resistor and a trimpot form a voltage divider which is used to apply bias to a transistor. As the LDR changes resistance the change in potential is detected by the circuit and the relay is activated. The PCB-mounted switch just interchangesthe trimpot & the LDR as far as the detection circuit is concer..................==> [ Click Here to Read More ]
Posted by: project report expert
Created at: Thursday 18th of August 2011 11:31:05 PM
Last Edited Or Replied at :Monday 27th of May 2013 12:26:43 AM
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We need to save or conserve energy because most of the energy sources we depend on, like coal and natural gas can't be replaced. Once we use them up, they're gone forever. Saving power is very important, instead of using the power in unnecessary times it should be switched off. In any city “STREET LIGHT” is one of the major power consuming factors. Most of the time we see street lights are ON even after sunrise thus wasting lot of energy. Over here we are avoiding the problem by having an automatic system which turns ON & OFF the street ..................==> [ Click Here to Read More ]
Page Name: LDR
Posted by: Mohsinali
Created at: Tuesday 26th of July 2011 07:23:10 AM
Last Edited Or Replied at :Tuesday 26th of July 2011 07:23:10 AM
|ldr light dependent resistor,|
|Light dependent resistor(LDR), also called as Cadmium Sulphide (CdS) cell or photoresistor is a
resistor whose value depends upon the incident light intensity. In darkness, the resistance of LDR
becomes high and in light, the resistance gets low. The resistance variation phenomenon of LDR has
been taken as a base for making circuits of LDR Engineering.|
My question is that can wee use anything instead of light dependent resistor (LDR) ??..................==> [ Click Here to Read More ]
Page Name: MAGIC EYE ALARM
Posted by: academic expert
Created at: Friday 22nd of April 2011 11:27:43 PM
Last Edited Or Replied at :Wednesday 21st of March 2012 11:36:59 PM
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If The intensity of light is less the resistance of the LDR is more
The heart of the circuit is timer IC555.
which is here acting as oscillator to generate sound whenever shadow is cast on LDR .
Timer 555 is connected to operate in astable mode of operation . Resistors R1, R2 along with capacitor C2 & C3 are required to operate the time properly.
Electronic eye circuit works as light intensity indicator.
Speaker will be activated.
We can increase the range of this equipment by using better sensor.
We can use this as ..................==> [ Click Here to Read More ]
Posted by: 10lee05
Created at: Tuesday 25th of January 2011 05:43:58 AM
Last Edited Or Replied at :Sunday 21st of August 2011 11:25:45 PM
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|I am 10lee05,|
I need complete projects details with circuit diagram for the following tipoic.
Industrial Protection System Using Light Dependent Resistor
presently i don't what is this projects will perform.
..................==> [ Click Here to Read More ]
Posted by: bharat mohan
Created at: Thursday 18th of March 2010 08:02:55 PM
Last Edited Or Replied at :Wednesday 15th of February 2012 11:24:57 PM
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Page Name: EXTRAORDINARY MAGNETO RESISTANCE
Posted by: seminar projects expert
Created at: Friday 30th of January 2009 01:20:50 PM
Last Edited Or Replied at :Friday 30th of January 2009 01:20:50 PM
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|o the disk has a limitation. This limit now a days is 13Gb/sq. inch. So the hard drive storage
density has to be limited to that extent. The storage density cannot be increased even though the
technology to do so is available because of the read head limitation. Here comes the importance of
extraordinary magnetoresistance. This property makes it possible to create hard disks of high
density storage, because by using this property it is possible create read- write heads which can
access the data from the high density storage disks which in normal case would not have been
possible. Using this pr..................==> [ Click Here to Read More ]|
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