A thermometer is a device that is used to measure the temperature of a body. A new and developing thermometer that measures the temporal artery in the forehead also uses infrared waves to measure temperature. One type of thermometer is a narrow, concealed glass tube containing mercury or alcohol which extends along the tube as it expands. The newer systems use an electronic temperature sensor to measure and record high and low temperatures. Due to safety concerns over mercury, other solutions like alcohol mixtures are often used instead.
Fahrenheit learned to calibrate thermometers from ole romer. This type of thermometer notices the difference between hot and cold junctions through the current in the attached probes. Apr 09, 2017 in this video i have tried to demonstrate the following types of thermometers and their uses. The different types of thermometers and how to use them. It is a small handheld device with a window showing your temperature in numbers. The lig thermometer is one of the earliest thermometers. They are easily found in local pharmacies and can be used at home or in the hospital. When youre choosing a thermometer, its important to understand its associated application, temperature measurement range, resolution, accuracy, and the.
A laboratory thermometer, which is colloquially known as the lab thermometer, is used for measuring temperatures other than the human body temperature. Make sure that you figure out first the cost, type of thermometer, readability of the thermometer, its water resistance and heat resistance. You can also choose from bimetal thermometer, infrared thermometer, and temperature sensor types of thermometers there are 4,037 suppliers who sells types of thermometers on, mainly located in asia. International astm standards into epa regulations pdf11. Food safety standards thermometers and using them with. Thermometers and their use continued 3 21 inn cientiic nc a ihts eserved materials for thermometers and their use are available from flinn scientific, inc.
Even though its days are over now, it remains the symbol of the thermometers. Just as a generic office or workplace thermometer is not suitable for critical industrial measurements. By the time thomas clifford allbutt was a young man, the thermometer was commonly used to monitor sick patients. Below is a list of some scenarios in which a thermometer might be used. A liquidinglass thermometer is widely used due to its accuracy for the temperature range 200 to 600c. Different types of kitchen thermometers and their uses. Meteorologists first used liquidinglass thermometers in the late 1800s, but they now use electronic maximumminimum temperature sensor systems more frequently.
Among various types of thermometers, this is a very sensitive model that can provide accurate temperature results between 250 and 1600 degrees celsius. There are different types of thermometers such as a medical or clinical thermometer, which is used to measure somebodys body temperature. At atp we believe it is important to choose the right thermometer to suit your intended application. A thermometer is a device that measures temperature or a temperature gradient. The different types of thermometer and their uses there are many different types of thermometer available on the market. If you want more immediate results, consider one of the following options. Different types of thermometer ashtons hospital pharmacy. Weather exposure could affect the life span of the thermometer. It is an important device used for the measurement of temperature or temperature gradient. In 1714, gabriel fahrenheit invented the first mercury thermometer, the modern thermometer. Notes on types of thermometer according to construction. Some of the principles of the thermometer were known to greek philosophers of.
Different types of thermometers and their uses updated. Type of thermometer whose function is to measure extreme temperatures, can reach temperatures higher than 600 c. Different types of thermometers different types of thermometers. Types of thermometers used in the seafood industry pdf. Epa has launched an effort to reduce the use of mercuryfilled. The fahrenheit scale of temperature is the common form of temperature measurement used in the united states and some parts of the caribbean.
A thermometer is used to measure the temperature of different materials or substances. When citing an essay from our library, you can use kibin as the author. Galileo galilei invented a rudimentary water thermometer in 1593 which, for the first time, allowed temperature variations to be measured. These thermometers can be used in the mouth, armpit or rectum. Compared to other thermometers, it is simple and no other equipment beyond the human eye is required. Explain that there are two different scale systems used to tell temperature. Clinical thermometers, also known as medical thermometers or doctors thermometers, are used to take body temperatures in humans and animals 1 2. A room thermometer would be used to take the indoor temperature of a room. To protect the anonymity of contributors, weve removed their names and personal information from the essays. Materials required to perform this activity are available in the make your own celsius thermometeran exercise in calibration. Are used mostly in industry to measure the temperature of confined gases. It will give exact information regarding temperature, which is important to the farmer. They deal with extreme temperatures and are most common in laboratories and industry. Carefully read the instructions before using your digital thermometer.
The example essays in kibins library were written by real students for real classes. Sometimes, it can come in the form of a pacifier for infants who cannot keep still when having their temperature measured. A noncontact thermometer is a way to take someones temperature without touching them. K type thermocouples are one of the more specialised and niche types of thermometer. This type of device caters for applications that need high precision. Kinds of thermometers and their uses kinds of kinds of.
Their most notable feature is the ability to facilitate a range of interchangeable plug in probes. The different types of thermometer and their uses atp. Thermometer, instrument for measuring the temperature of a system. There are many types of thermometers, but some common thermometers are laboratory thermometer, clinical thermometer, thermocouple, bimetallic strip thermometer, pyrometers, etc.
It uses infrared technology and is used mostly in the metallurgical industries. Dec 20, 2016 types of thermometer there are several types of thermometer. Thermometers and their use is a lab activity that helps students figure out how to calibrate a blank, spiritfilled thermometer. So, a thermometer is a scientific tool for measuring temperature. A display shows the measured value numerical, symbolic and uses different colors to communicate the state of the patient to the user. Choosing a good thermometer for your job will ensure that you will get the best so that you can do your job comfortably and safely. So lets take a look at the different thermometers we offer and their ideal uses. Sanitization is an important specification if the thermometer is going to be used in a clinical setting or in the food and beverage industry. Clean the tip of the thermometer with a cotton ball soaked in alcohol. Although many fevers run their course without medical intervention, call your doctor right away if your baby is under 3 months and has a rectal thermometer reading of over 101. It is very handy to handle and give fast and accurae result.
Some substances have the property that changes with temperature. Feb 03, 2020 a digital thermometer is used to take an oral temperature. Mar 24, 2020 a thermometer is a device that is used to measure the temperature of a body. Thermometer simple english wikipedia, the free encyclopedia. Find types of thermometer stock images in hd and millions of other royaltyfree stock photos, illustrations and vectors in the shutterstock collection. A thermometer is an instrument for measuring or showing temperature how hot or cold something is. Digital thermometers are regarded as the fastest and most accurate type of thermometer. There are many different types of thermometers which measure the temperature but use different types of methods. Another type is a digital thermometer, which uses electronics to measure temperature. The word thermometer comes from the latin thermo, meaning heat, and metrum, meaning measure. Types of thermometer there are several types of thermometer, here, i explain only a few of the possibly many types of thermometer. Thousands of new, highquality pictures added every day. How to take an oral temperature step by step instructions. A typical thermometer contains a liquid solution inside, which is often mercury.
The physical quantity that is used to determine the temperature of a body by means of a mercury thermometer is the length of the thread mercury, or to be more exact, the volume of mercury. Thermometer has been derived from a greek words thermo and meter, where thermo means heat and meter means to measure. It has been used in medicine, metrology and industry. Most digital thermometers are easy to use and measure body temperature within seconds. Readings are taken from under the tongue, from the rectum or under the armpit. Remove the thermometer carefully and read the temperature on the digital display. A gardener might use a weather thermometer to give the outdoor temperature.
Since clinical thermometers cant be used to measure temperature other than the human body, we need a special type of thermometers for other purposes. For a child over 3 months old, you can choose from five different types. What are the different types of thermometers in physics. These use infrared technology to get their temperature reading. Notes, exercises, videos, tests and things to remember on types of thermometer according to construction.
From probes, to infrared to specialist thermocouples. It is crucial to know the different kinds of thermometers and their uses since there are many different kinds of thermometers which have a large variety of uses. Jul 27, 2017 clinical thermometers, also known as medical thermometers or doctors thermometers, are used to take body temperatures in humans and animals 1 2. Show the parts of a thermometer transparency and point out the parts of the thermometer. The physical quantity that is used to determine the temperature of a body by means of a mercury thermometer is the length of the thread mercury.
When we hear the word thermometer, the glass meter with a silver color liquid comes to our mind. There are many different types of thermometer on the market. Thermoscopes, thermometers, and the foundations of measurement pdf. The accurate measurement of temperature developed relatively recently in human history. Noncontact temperature measurement devices cdc stacks. However, both of these liquidfilled thermometers require some time to show the temperature. A wide variety of types of thermometers options are available to you, such as industrial, outdoor, and household. Thermometers are used to see if you have a fever or tell you how cold it is outside. A safer alternative to the previous type, these thermometers use coloured alcohol that expands when exposed to increased temperature. If one does not know the kinds of thermometers and their uses they may end up using the wrong kind of thermometer for the wrong purpose. Thermometers used for meteoroidal or in outdoor settings should be sealed against water and humidity as well as study enough to face high. As body temperature varies, the fahrenheit scale was later changed to use an. If there is any doubt about the body temperature reading, please consult healthcare professionals.
Digital temple thermometers are fast, fairly accurate, and good to use. It was created by the german scientist daniel gabriel fahrenheit in the early 18th century, and adapted its measurements standards from a previous scale created by ole roemer. Accuracy can be adjusted if the thermometer has a calibration nut. Start a free trial of quizlet plus by thanksgiving lock in 50% off all year try it free.
This is how one can study the kinds of thermometers and uses of them. A thermometer is a tool that measures temperature how hot or cold something is. Jan 03, 2015 when the thermometer beeps, it means that it can be removed. Choose from 351 different sets of thermometer flashcards on quizlet. Up to 1841 there were 18 different temperature scales in use. That common but useful little instrument, the ther mometer, may be employed in various ways on the farm to the farmers benefit. Temperature measurement is important to a wide range of activities, including manufacturing, scientific research, and medical practice. Thermometer types clinical thermometer, laboratory.
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