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TITLE PAGE
DESIGN AND CONSTRUCTION OF A NON-CONTACT INFRARED THERMOMETER WITH ALARM
BY
---
--/H2013/01430
DEPARTMENT OF ----
SCHOOL OF ---
INSTITUTE OF ---
DECEMBER,2018
APPROVAL PAGE
This is to certify that the research work, "design and construction of a non-contact infrared thermometer with alarm" by ---, Reg. No. --/H2007/01430 submitted in partial fulfillment of the requirement award of a Higher National Diploma on --- has been approved.
By
--- . ---
Supervisor Head of Department.
Signature………………. Signature……………….
……………………………….
---
External Invigilator
DEDICATION
This project is dedicated to Almighty God for his protection, kindness, strength over my life throughout the period and also to my --- for his financial support and moral care towards me.Also to my mentor --- for her academic advice she often gives to me. May Almighty God shield them from the peril of this world and bless their entire endeavour Amen.
ACKNOWLEDGEMENT
The successful completion of this project work could not have been a reality without the encouragement of my --- and other people. My immensely appreciation goes to my humble and able supervisor mr. --- for his kindness in supervising this project.
My warmest gratitude goes to my parents for their moral, spiritual and financial support throughout my study in this institution.
My appreciation goes to some of my lecturers among whom are Mr. ---, and Dr. ---. I also recognize the support of some of the staff of --- among whom are: The General Manager, Deputy General manager, the internal Auditor Mr. --- and the ---. Finally, my appreciation goes to my elder sister ---, my lovely friends mercy ---, ---, --- and many others who were quite helpful.
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The project is titled “The design and construction of a non-contact thermometer using infrared and with alarm”. This device was designed In order to realize the human body temperature fast and non-contact measurement, using an infrared. The infrared human body temperature sensor is mainly used to convert the human body's infrared into voltage signal, an operational amplifier to amplify the signal, filter circuit to filter the signal, the analog signal into digital signal by the A/D conversion circuit, data processing by the MCU, LCD display and voice reporting body temperature and time, so the human body non-contact measurement is realized. The experimental results show that: the device can realize the temperature and time of acquisition, the measurement error is not more than 0.5℃, voice broadcast and liquid crystal display the temperature and time, overrun alarm and other functions.
TABLE OF CONTENTS
TITLE PAGE
APPROVAL PAGE
DEDICATION
ACKNOWELDGEMENT
ABSTRACT
TABLE OF CONTENT
CHAPTER ONE
- INTRODUCTION
- BACKGROUND OF THE STUDY
- PROBLEM STATEMENT
- AIM/OBJECTIVE OF THE STUDY
- PURPOSE OF THE PROJECT
- SIGNIFICANCE OF THE STUDY
- APPLICATION OF THE PROJECT
- SCOPE OF THE PROJECT
- LIMITATION OF THE PROJECT
- PROJECT WORK ORGANISATION
CHAPTER TWO
LITERATURE REVIEW
2.0 LITERATURE REVIEW
2.1 HISTORICAL BACKGROUND ANDDEVELOPMENT OF THE STUDY
2.2 PHYSICAL PRINCIPLES OF THERMOMETRY
2.3 THERMOMETRIC MATERIALS
2.4 PRIMARY AND SECONDARY THERMOMETERS
2.5 CALIBRATION OF THERMOMETERS
2.6 REVIEW OF TWO KINDS OF CONVENTIONAL THERMOMETERS
CHAPTER THREE
3.0 METHODOLOGY
3.1 PRINCIPLE OF INFRARED TEMPERATURE MEASUREMENT
3.2 DESIGN OF THE HARDWARE
3.3 DESIGN OF SOFTWARE
3.4 SOFTWARE COMPILATION AND DOWNLOAD
CHAPTER FOUR
4.0 THE EXPERIMENTAL RESULTS
CHAPTER FIVE
5.1 CONCLUSIONS
5.2 REFERENCES
CHAPTER ONE
1.0 INTRODUCTION
1.1 BACKGROUND OF THE STUDY
A thermometer is a device that measures temperature or a temperature gradient. A thermometer has two important elements: (1) a temperature sensor in which some physical change occurs with temperature, and (2) some means of converting this physical change into a numerical value (e.g. the visible scale that is marked on a mercury-in-glass thermometer). Thermometers are widely used in industry to control and regulate processes, in the study of weather, in medicine, and in scientific research.
In daily life, the measurement of body temperature is a basic way to determine the normal life of the human body. Although the price of traditional mercury thermometers is cheap , the existing problems are as follows when it is used: Mercury thermometer must contact with the human body , and temperature measurement process need lasted 5 to 10 minutes, because infants is active, let parents become very headache for infant body temperature; And in the number of temperature meter reading, easy to read wrong due to external light and other factors; Mercury thermometer is easy to rupture when heated or stored improperly, It can lead to mercury poisoning due to human body exposure to mercury [1]. Infrared temperature sensor is used for measuring temperature, The measurement trouble of the traditional contact thermometer is avoided. It is especially suitable for infants and young children to measure the body temperature ,and the measured temperature is displayed by the liquid crystal display module, it is accurate, and it has the function of voice broadcast, it is convenient for the people with poor eyesight. The main aim of this work is to build an infrared thermometer which is a thermometer which infers temperature from a portion of the thermal radiation sometimes called black-body radiation emitted by the object being measured. This permits temperature measurement from a distance without contact with the object or to be measured.
1.2 PROBLEM STATEMENT
Traditionally, thermometer was made to be used and read by making contact with the patient or an object which is to be tested and this wastes lot of time and it is inefficient. In order to realize the human body temperature fast and non-contact measurement, an infrared thermometer is designed.
1.3 AIM / OBJECTIVE OF THE PROJECT
The main aim of this work is to build an infrared based thermometer which is a device used to measure the temperature of any particular device or living body and displays the reading. A thermometer scale can be in Fahrenheit or Celsius.
1.4 PURPOSE OF THE PROJECT
The main purpose of this work is to carry out a temperature measurement without making contact with the object to be measured.
1.5 SIGNIFICANCE OF THE PROJECT
Non-contact: No contact guarantees the best hygiene, thereby greatly reducing the risk of being tested and the operator being infected by bacterial viruses.
Efficient and accurate: Simple operation non-contact sensitive, no need to wait accurate measurement.
infrared sensor: Self-develop infrared module accurate to 0.2 celsius stable, fast and accurate strong adaptability 5.5cm infrared filter wide measurement range.
Smart power saving: Supports automatic shutdown Two AAA batteries can be used more than 3000 times.
1.6 APPLICATIONS OF THE PROJECT
Medical Applications: The non-contact thermometers are used to measure human body temperature around 37⁰C. These thermometers are mostly probe type or ear type. It measures oral, rectal and arm pit body temperature.
Marine Applications: non-contact thermometers with high temperature exhaust gas sensor as the temperature sensor can be used in marine applications for measuring the local temperature.
Industrial Applications: non-contact thermometers are also used in power plants, nuclear power plants, blast furnaces, ship building industries etc. They can measure temperature from -220 degree celcius to +850Celcius.
1.7 SCOPE OF THE PROJECT
This device provides temperature measurement in one second with non-radiation accurate copper core probe, it has backlight display. Accurate detection of health status, when the measurement results are in the orange high temperature or red high temperature, the backlight will be different, easy to watch. Intelligent calibration and matching of ambient temperature. Automatic recording of 32 groups of memory, convenient to observe the cycle and control the temperature changes whenever necessary.
1.8 LIMITATION OF THE PROJECT
Infrared Electronic thermometers are ideal use for taking temperature measurements at a proper distance. Infrared Electronic thermometers provide you to measuring accurate temperatures without ever having to touch the object.
This device has LCD digital display, Lightweight and portable for use. Built-in laser pointer, precise non-contact infrared measurement. 2 temperature units for conversion: Fahrenheit or Celsius, long press “MODE” more than 3s. Measurement modes selection for various needs conveniently. Body temperature measurement: aiming towards the forehead with the distance of 1-5cm. Object temperature measurement: measuring the surface temperature of an object, baby bath water temperature or milk temperature, etc. Automatic selection range and display resolution 0.1°C/0.1°F. Automatic data hold function and auto power off function. Selection for buzzer; set alarm value(the alarm default value is 38°C/100.4°F).
1.9 PROJECT WORK ORGANISATION
CHAPTER TWO: The chapter one of this work has been displayed above. The complete chapter two of "design and construction of a non-contact infrared thermometer with alarm" is also available. Order full work to download. Chapter two of "design and construction of a non-contact infrared thermometer with alarm" consists of the literature review. In this chapter all the related work on "design and construction of a non-contact infrared thermometer with alarm" was reviewed.
CHAPTER THREE: The complete chapter three of "design and construction of a non-contact infrared thermometer with alarm" is available. Order full work to download. Chapter three of "design and construction of a non-contact infrared thermometer with alarm" consists of the methodology. In this chapter all the method used in carrying out this work was discussed.
CHAPTER FOUR: The complete chapter four of "design and construction of a non-contact infrared thermometer with alarm" is available. Order full work to download. Chapter four of "design and construction of a non-contact infrared thermometer with alarm" consists of all the test conducted during the work and the result gotten after the whole work
CHAPTER FIVE: The complete chapter five of design and construction of a "design and construction of a non-contact infrared thermometer with alarm" is available. Order full work to download. Chapter five of "design and construction of a non-contact infrared thermometer with alarm" consist of conclusion, recommendation and references.
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