Thermometer calibration.
Posted: Mon Apr 15, 2019 2:00 am
Something currently bugging me is not knowing which of my thermometers to believe.
I own more than two dozen, from cheap Chinese LCD's to more expensixe LCD's. some with red liquid in and some I think with Mercury, a point press/the trigger jobby, some stick ons, one for jam, one for cooked meat, one in the fridge that say's OK if it is cold enough, - you name it ,I probably own it!
I only usually ask of them to be consistent in the job that I ask them to perform, not caring if it was the actual temperature.
Last week I wanted an absolute,spot on temperature.
I finally found two thermometers to agree, but were they right?
With clocks and time, you can get the radio signal controlled ones, no probs.
Back when I sailed off the west coast, if I was near a Coast Guard station and they announced the barometric pressure, i could adjust my inferior barometer.
How do we get a low down on temps?
We can photograph black holes a gazillion miles away, but am I to believe some spotty kid that wrote an App. telling my via the internet that at my postcode it is however many degrees C?
I have buggered a couple of themometers putting them in boiling water trying to calibrate them.
But I live 225 Meters above Sea level, so that was always doomed to failure.
Another point, - do thermometers understand altitude?
I may be a little dumb here. Certainly a little drunk.
If anyone can give me a decent comeback, I would be grateful.
Robert.
The thought has just occurred, I could stab myself with one and check my body temp.at 37°C.
But what if I am running a fever, or suffering from the current cold spell outside?
This could be a whole new can of worms.
I own more than two dozen, from cheap Chinese LCD's to more expensixe LCD's. some with red liquid in and some I think with Mercury, a point press/the trigger jobby, some stick ons, one for jam, one for cooked meat, one in the fridge that say's OK if it is cold enough, - you name it ,I probably own it!
I only usually ask of them to be consistent in the job that I ask them to perform, not caring if it was the actual temperature.
Last week I wanted an absolute,spot on temperature.
I finally found two thermometers to agree, but were they right?
With clocks and time, you can get the radio signal controlled ones, no probs.
Back when I sailed off the west coast, if I was near a Coast Guard station and they announced the barometric pressure, i could adjust my inferior barometer.
How do we get a low down on temps?
We can photograph black holes a gazillion miles away, but am I to believe some spotty kid that wrote an App. telling my via the internet that at my postcode it is however many degrees C?
I have buggered a couple of themometers putting them in boiling water trying to calibrate them.
But I live 225 Meters above Sea level, so that was always doomed to failure.
Another point, - do thermometers understand altitude?
I may be a little dumb here. Certainly a little drunk.
If anyone can give me a decent comeback, I would be grateful.
Robert.
The thought has just occurred, I could stab myself with one and check my body temp.at 37°C.
But what if I am running a fever, or suffering from the current cold spell outside?
This could be a whole new can of worms.