General thermometer in silver liquid mercury (toxic).
It is the "peak
reading" approach to the determination of the maximum temperature,
allowing Hg maintained at that temperature, easy and accurate reading of the
medical staff. After the recording is complete toss in your hand, will be able
to return to the lower end of Hg.
Ordinary thermometer scale is
only ten degrees below zero to over fifty degrees (an encounter water will
bulge rupture), the liquid is alcohol, added some red dye to facilitate the
reading.
Currently, There are mostly kerosene for household thermometer
temperature meter in the market. The
division value is larger than others, mostly 1 ℃, and therefore can not make
an accurate measurement.
The working substance of Kerosene
thermometer is kerosene, its boiling point is generally higher than 150 ℃,
freezing point lower than -30 ℃. So a measure of the range of
kerosene thermometer is about -30 ℃ ~ 150 ℃.
And the boiling point of the
alcohol is 78 ℃,
the freezing point is -114 ℃,
alcohol thermometer can measure the temperature lower than the kerosene
thermometer but it can not be measured a temperature above 78 ℃ .
Digital thermometers
Regular digital thermometers,
which use electronic heat sensors to record body temperature, can be used in
the rectum, mouth or armpit. The most accurate way to take a child's
temperature is to use a digital thermometer, either rectally or orally. Rectal
temperatures provide the best readings for infants, especially those 3 months
or younger as well as children up to age 3. If you use another type of thermometer
to take a young child's temperature and you're in doubt about the results, take
a rectal temperature. For older children and adults, oral readings are usually
accurate — as long as the mouth is closed while the thermometer is in place.
Armpit readings tend to be less accurate than rectal and oral readings.
Pros. Most digital thermometers
can record temperatures from the mouth, armpit or rectum — often in a minute or
less. A digital thermometer is appropriate for newborns, infants, children and
adults.
Cons. Parents may worry about
causing discomfort when taking a child's temperature rectally. Wait at least 30
minutes after eating or drinking to take an oral temperature. Having nasal
congestion may make it difficult to keep your mouth closed long enough to get
an accurate oral reading from a digital thermometer. If you plan to use a
digital thermometer to take both oral and rectal temperatures, you'll need to
get two digital thermometers and label one for oral use and one for rectal use.
Don't use the same thermometer in both places.
Digital ear thermometers
Digital ear thermometers, also
called tympanic thermometers, use an infrared ray to measure the temperature
inside the ear canal.
Pros. When positioned properly,
digital ear thermometers are quick and fairly accurate. Digital ear
thermometers are appropriate for infants older than age 6 months, older
children and adults.
Cons. Digital ear thermometers
aren't recommended for newborns. Earwax or a small, curved ear canal also can
interfere with the accuracy of a temperature taken with a digital ear
thermometer.
Digital pacifier thermometers
If your child uses a pacifier,
you may want to try a digital pacifier thermometer. Your child simply sucks on
the pacifier until the peak temperature is recorded.
Pros. Your child may not even
realize you're taking his or her temperature.
Cons. Digital pacifier
thermometers aren't recommended for newborns. For the most accurate reading,
your child must hold the pacifier still in his or her mouth for about three to
five minutes — which is difficult for many young children, particularly those
who have nasal congestion. Recent research doesn't support the accuracy of
temperature readings from pacifier thermometers.
Of course, I also did the research for how thermometers works.
I am not good at solve those serious problem with high technique. My design always come with small idea and improve on an issue.
So I try to design some cute and attractive thermometers for children. Like lollipop shape, chocolate stick shape... etc.
LUCKILY, I DID RESEARCH.
Yup, same idea already used. erm..........................................







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