photo:thermometers
thermometers
Introduction
General characteristics of thermometers to consider
operating temperature range
probe or no probe
usage design
accuracy
ability to calibrate against a more highly accurate thermometer to give more accuracy
precision
sampling rate
time to equilibrate to temperature being measured
weathersealing
size
robustness
cost
power supply
other sensor functions
ability to link wirelessly with other sensors
ability to link with smartphones via Bluetooth
allows remote access and also potentially data download
examples also include sensors to be used inside car fridges to avoid having to open the fridge to check the temperature, etc
ability to record and manage data points
most just record current temperature, and some will record min and max for last 24hrs
you may prefer to use a USB data logger thermometer for a more complete timeline which can be exported to Excel (note some are not compatible with 64bit Windows!)
data logging thermometers
examples:
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compatible with 64bit Windows 10 but precision is only 0.5degC and costs $AU272
has replaceable lithium battery which lasts 1-2 yrs and has a LCD display to show current temp, RH
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thermal imaging cameras
usually have a centre spot temperature measurement which generally have accuracy of around +/- 1.5 to 2degC
thermal imaging resolution is usually around 160 x 120 pixels
have the advantage that they can visually display hot and cold spots for detecting industrial problems
examples:
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attaches to smartphones
accuracy ±3°C
detects ranges -20° to 120°C and 0°C to 400°C
55° x 43° field of view and can measure objects 15cm to 50m away
iOS version connects via lightning connector
android version connects via USB-C
$AU630
photo/thermometers.txt · Last modified: 2021/07/29 17:15 by gary1