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A IR thermometer or Pyrometer is used where it is not possible to measure temperature with contact, IE very hot or very cold temperatures or where the object is a distance away. Infrared is in the 10-6 to 10-4 Meter band, this is called the thermal radiation band. It is between the microwave band and the visible light band. An IR thermometer, transmit a predefined IR frequency signal to the object under measurement, if the IR generated by that object itself is of a lower frequency than the received IR, that frequency is subtracted from the received frequency and that IR signal is then reflected back to the IR thermometer, this received signal is then used by the build in electronics of the thermometer to calculate the temperature of the object under measurement. Some uses: * Detecting clouds for remote telescope operation * Checking mechanical equipment or electrical circuit breaker boxes or outlets for hot spots * Checking heater or oven temperature, for calibration and control purposes * Detecting hot spots / performing diagnostics in electrical circuit board manufacturing * Checking for hot spots in fire fighting situations * Monitoring materials in process of heating and cooling, for research and development or manufacturing quality control situations
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Who formulated OHM'S law?
V=ir
What is the output of IR Sensors is it analog or digital?
Digital
Is V equals IR ohms law?
Some say so.
Why using 555 timer in ir transmitter?
The 555 is a timer and oscillator chip capable of sourcing and sinking 200 milliamperes, and is useful for pulsing an infrared LED to power an infrared transmitter. It can be pulse width modulated or otherwise controlled via the various control pins. See: http://talkingelectronics.com/FreeProjects/555/555-P3.html in most cases the IR detector used is TSOP sensors which works only on a specified frequency of 38KHz. So by using 555 timer, we can design the circuit very easly to work @ 38KHz. dats why in 555 is used in many IR txns.
What is difference between Hipot and IR test?
With Hipod leakage current of any circuit (HT Distribution/ Transmission Lines) can be determine and with IR Test insulation resistance between two circuit or parts of machine is determined.
Are IR thermometers best for taking baby's temperature?
"IR thermometres are quick and easy to use for babies. They are very accurate when used correctly, and can be easier to use than the traditional methods. On the other hand, IR thermometres are often much more expensive than traditional types as well."
What applications require an infrared thermometer?
IR thermometers are typically used when contact or thermocoupled thermometers wouldn't work or wouldn't be accurate. Some examples I can think of include: when the object whose temperature you want to take is moving, if the object is in a vacuum, or if the object could be contaminated by contact.
I am searching for an accredited test lab to test IR thermometers per the ASTM E1965 standard.?
There is a list of such labs here http://www.intersocietal.org/icavl/laboratories/lablist/Maryland_to_Massachusetts.htm
What different kinds of thermometers are there?
There are 34 different types of thermometer that range from alcohol thermometers and ear thermometers to medical thermometers and electrical resistance thermometers.
What where the first thermometers?
Mecury thermometers
How are mercury thermometers used today?
Mercury thermometers are rarely used, except in lab thermometers. For human use, they have been replaced by dyed alcohol glass thermometers, or electronic digital thermometers.
Are digital and clinical thermometers same?
no,digital thermometers don't have mercury whereas clinical thermometers have mercury.
What are strip thermometers?
the thermometers which are used to find your temperature
Different types of thermometers?
Celsius and Fahrenheit Thermometers Clinical Thermometers Ear (Tympanic) thermometers Pacifier Thermometers Underarm or Oral Thermometers Food Thermometers Outdoor Thermometers Mechanism of Different Types of Thermometers Mercury and Alcohol Thermometers Digital Thermometers Alcohol thermometer Beckmann differential thermometer Bi-metal mechanical thermometer Electrical resistance thermometer Galileo thermometer Infrared thermometer Liquid Crystal Thermometer Medical thermometer (e.g. oral thermometer, rectal thermometer, basal thermometer) Mercury-in-glass thermometer
How accurate are ir thermometers?
Reasonably accurate since they are used in tight control situations where temperature tolerance must be monitored extremely well. Typical error values are not more than one one thousand of a single degree.
What liquid mental is used for thermometers?
Mercury is used in thermometers.
What is common in fishes and thermometers?
Mercury is common in both fish and thermometers. Although nowadays they make thermometers without mercury in them.
