sitelogo
 Home»Science Technology» Design and construction of heat sensor

Design and construction of heat sensor

 Department: Science Technology  
 By: usericon Ohindasi  

 Project ID: 7997
   Rating:  (5.0) votes: 1
Rate this project
   Price:₦3000
Abstract
This project work focuses on the design and construction of heat detectors for use in homes, industries, offices, etc. It uses a thermistor as the heat sensitive element which is a type of resistor whose resistance changes significantly according to temperature change. The thermistor was connected as a voltage divider to one of the input terminals of the comparator (Pin 2) of the 555 timer IC, as the resistance of the thermistor increases, the voltage at Pin 2 decreases. Thus pin 1 becomes high and biases, the N.P.N transistor moiling it to drive the 9V input load which activates the alarm circuit. With the design of the rate-of-heat detector, the temperature of the sensor increases, and the output is at 75oC or more per minute which triggers the alarm. The heat sensor can be said to be ideal for environments with high dust or rapid fire development....
Preview +
Other Science Technology project topics and materials you might be interested in
»Design and construction of cell phone charger
»Bacteriological qualities of food thickener deuterium microcarpum (ofor) and brachystegia eurcycoma (achi) sold in Owerri main market
»Obstacle detection robot with ultrasonic sensor
»Physiochemical assessment of soil samples from Nwambe Reserve Forest, Ndubia Igagu Izzi L.G.A, Ebonyi State.
»Antitrypanosomal activity of ethanol extract of Tridax Procumbent leaf and whole flower on T. Brucei infected rats (Invitro and Invivo)
»Pharmacological activities of plant secondary metabolites
»A study on the effects of beer on the efficacy of antimalarial drug administered 1hour before beer consumption in albino rats
»Qualitative production of biodiesel using neem seed oil
»Physico-chemical assessment of soil sample from Igbagu reserve forest in Ebonyi State
»Fungi associated with the deterioration of in-can and painted walls of Akanu Ibiam Federal Polytechnic, Uwana
»Theory and application of direct hydrocarbon indicators
»Microbial load of some dehydrated foods with special reference to dried tomatoes and mushrooms
»The assessment of surface water quality in Otamiri river in Nekede, Owerri west, Imo state
»Production of potassium salt K2So4 from agricultural waste unripe plantain peels
»Antimicrobial properties of edible mushroom

Upload Project

Do you have project materials to share? Upload and earn with it.

Departments