on which the internal resistance/emf of a cell depends. 2. To study the variations‚ in current flowing‚ in a circuit containing a LDR‚ because of a variation. (a) in the power of the incandescent lamp‚ used to ‘illuminate’ the LDR. (Keeping all the lamps at a fixed distance). (b) in the distance of a incandescent lamp‚ (of fixed power)‚ used to ‘illuminate’ the LDR. 3. To find the refractive indices of (a) water (b) oil (transparent) using a plane mirror‚ a equiconvex lens‚ (made from a glass
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long distance relationship. Not all of LDR (Long Distance Relationship) couple can make it through until marriage. They have bigger problems than couple who don’t live far away and can meet each other easily. The problems are the distance where they live are far away‚ they need to spend more money to keep commonicating each other‚ and the worst is they can cheat each other. They will meet those problems which can cause them to break up. The first problem in LDR is actually the distance. They live
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To detect the present of an object we have used LDR and a source of light. LDR is a special type of resistance whose value depends on the brightness of the light‚ which is falling on it. It has resistance of about 1 mega ohm when in total darkness‚ but a resistance of only about 5k ohms when brightness illuminated. It responds to a large part of light spectrum. We have made a potential divider circuit with LDR and
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PORTABLE AUTOMATIC LAVATORY An Advance Logic Circuit and Control Systems Applications Presented to the College of Computer Engineering Saint Vincent’s College Dipolog City In Partial Fulfillment of the Requirements for the Degree Bachelor of Science in Computer Engineering Presented By: Ca-aya‚ Joed D. Barrios‚ Albert L. Rendoque‚ Glenford A. Engr. Clarito R. Sarabia Instructor Acknowledgement Deep inside the hearts of the designers‚ they would like to thank the people who made suggestions
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Journal of Agricultural Engineering‚ Vol. 40(2): 13-20: April-June‚ 2003 Electronic Seed Tube Blockage Detector for Tractor Drawn Seed Drill AK Rail‚ K Sivadasan 2 and SN Murty3 ABSTRACT Tractor driven seed drills are extensively used for sowing seeds. Choking of lower end of tubes in seed drills is a comJIlon problem while sowing. To detect the choking of tubes/ channels instantaneously‚ a multichannel electronic seed tube blockage detector for tractor drawn seeddrills (ESTBDTDS) has been
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Department of Electrical Engineering College of Engineering Ajman University of Science and Technology Network Graduation Project 1 http://www.scribd.com/doc/97178973/GSM-Based-Home-Security-System-REPORT Wireless Car Notification System Supervised By: Dr. Zullfakar. Group Members: 1- Abdelaziz weal (200820094). 2- Abdulla mohsen ail (200710779) 3- Omar zuhair 4- Abstract Wireless car notification system; is mainly about having information regarding the car‚ to
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SORTING OF OBJECTS THROUGH PICK AND PLACE ROBOTIC ARM A PROJECT REPORT Submitted by GAURANG MARVANIA [Reg No: 11807024] GOURANGA NEOG [Reg No: 11807026] MAHARSHI THAKER [Reg No: 11807100] Under the guidance of M.R. STALIN JOHN (Assistant Professor(SG)‚ Department of Mechanical Engineering) In partial fulfilment for the award of the degree Of BACHELOR OF TECHNOLOGY in MECHATRONICS ENGINEERING of FACULTY OF ENGINEERING & TECHNOLOGY S.R.M. Nagar‚ Kattankulathur‚ Kancheepuram District MAY
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Table of Contents List of tables 3 List of Figures 4 1Introduction 5 2 Circuit diagram 6 3 Circuit components 7 3.1 LDR 7 3.2 Resistors 8 3.2.1 Color code 8 3.3 IR LED 9 3.4 LED 11 3.5 OP-AMP 12 3.5.1 OP AMP LM 324 13 3.6 Transistor 15 3.6.1 Transistor 2N2222 15 3.7 SCR 16 3.7.1 SCR C106MG 18 C106MG 19 3.8V Battery 19 3.9 Photo diode 20 Principle of operation 21 3.9.1 IR Photo diode 21 3.10 Switches 22 3.11 Buzzer 23 3.11.1Mechanical buzzer 24 3.11.2 Electromechanical buzzer 24 3.11.3 Piezo buzzer
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document I shall teach the components more on a need-to-know basis. 1 Registry 2 Making a program that runs: -The Push and Pop commands 3 Arithmetic functions: Add‚ Sub‚ mul‚ neg 4 Logic Functions: orr‚ and‚ mvn. eor‚ lsl‚ lsr‚ ror 5 Memory access: ldr‚ ldrh‚ ldrb‚ str‚ strh‚ strb 6 Control Flow and Unconditional Jumps: cmp‚ b‚ b<xx> 7 Call and return to functions: bl‚ bx‚ swi Before I begin‚ I shall explain briefly some concepts you need to know. Registry Registers are small‚ extremely fast
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investments in banks etc.. This led to the development of ALARM SYSTEM Basic circuit Alarm Interface: We used LDR to detect Laser Light. LDR pin was Fed to Op-Amp input leg. Clock pulse to 4017 was taken from Op-Amp output pin. Light Dependent Resistor (LDR) LDRs or Light Dependent Resistors are very useful especially in light/dark sensor circuits. Normally the resistance of an LDR is very high‚ sometimes as high as 1000 000 ohms‚ but when they are illuminated with light resistance drops dramatically
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