The application of portable blackbody furnace and the solution of the problems in the production of temperature gun.

The application of portable blackbody furnace and the solution of the problems in the production of temperature gun. With the forehead temperature gun for use of portable blackbody furnace in the production of shallow solutions, portable blackbody furnace is a kind of secondary transmission of blackbody radiation sources, it represents the emissivity of value between 0.99 1, and on the market the forehead temperature gun before leaving the factory emission rates were set at 1 so portable blackbody furnace is ideal in the production of forehead temperature gun blackbody radiation source.

Steps to use:

1. Put the forehead temperature gun indoors for 20 minutes in advance, and the room temperature should not be lower than 20℃.

2. Debug the frontal temperature gun into the mode of the test object.

3, query the effective test distance in the manual of the temperature gun, according to the effective distance test, test a short distance, test a long distance.

4. After the set temperature of the portable blackbody furnace is heated up, wait for the stable state for 3-5 minutes to start detection.

5. In the test, the outside (not inside) of the aluminum ring of the portable blackbody furnace should be taken as the starting point of the test (0 position), and moved back to the corresponding test position for testing (the distance needs the assistance of ruler).

Answer:

1. Why does the temperature gun need to be debugged into object mode?

A: Because the temperature gun is based on the object mode (the emissivity of the object mode is 1) before it leaves the factory, and then it is converted into the human body temperature through the calculation formula. The calculation formula is not available in our company. Please consult the peers.

2. Why do you test a short distance and a long distance when testing the temperature gun?

Answer: The effective range is a range, which is obtained by moving the frontal temperature gun in the production without great deviation. That is to say, the data tested within this range are consistent or close to the same (within the allowable error range).

In production, after the effective distance is determined, the test distance should not be moved. When testing other temperature points, the test should be carried out at a fixed distance.

3. Why does the test deviation come out when calibrating the frontal temperature gun?

A:Through to the part of the price on the market with high forehead temperature gun checking we found that the forehead temperature gun in < 38 ℃ (object model) under the condition of test error is relatively small, usually between 0.1 0.2 ℃ or less (test environment may have an impact), the forehead temperature gun in 38 ℃ or higher (object model) under the condition of test error is relatively large, usually between 0.2 0.5 ℃ or less (test environment may have an impact), in fact this is also a kind of normal curve, can be a through the forehead temperature gun built-in software error correction, the error value into,

But this method is only applicable to the sensor repeatability is good to achieve.

4. After verification and debugging, why is the human body still not tested?

A:First forehead temperature gun is through an ideal blackbody radiation source calibration of a product, but the body is not an ideal blackbody, human skin color, smoothness, and the external environment will affect the accuracy of the test, but in the test a normal people did not have a fever, he tests out of data or relatively accurate (basically can within the scope of the deviation), but in a fever, the forehead temperature gun will error values with high temperature error is bigger (relative to the test data will be smaller), so we think the forehead temperature gun is just as a surface temperature screening tools,

If the test temperature is more than 37℃, the mercury thermometer should be measured twice to determine the actual temperature value.

Disclaimer: The issues mentioned in this article about the calibration and use of the frontal temperature gun only represent suggestions from our company and are not issued by an authoritative authority.If there is similarity, it is pure coincidence!