Infrared and microwave line moisture tester line moisture tester application in tobacco
Tobacco moisture ( also known as the tobacco moisture content, moisture level ) as a measure of the quality of the main parameters of tobacco , cigarette promotion of enterprise quality , enhance market competitiveness of major significance. Thus, the hood innovative companies in the equipment , skills, innovation , progress and other aspects of the initiative to control the degree of the selected line detection tobacco moisture meter moisture thinking on the most important position .
At present, tobacco silk thread , testing the moisture content of tobacco or tobacco mature primary device with infrared and microwave moisture meter moisture meter two kinds .
One , two kinds of truth moisture meter
1 , infrared type moisture tester
Infrared -type moisture tester is applied infrared spectroscopy analysis material moisture content of the instrument. Infrared light is an electromagnetic wave , all kinds of electromagnetic waves with the inevitable energy differences wavelength differences of energy. Various substances on the electromagnetic wave energy has received order , What, then this receiver is selective , molecular divergence of the received electromagnetic wavelength differences, a molecule that can only receive one or a few wavelengths of electromagnetic waves, while the other wavelengths of electromagnetic energy can not have received .
Infrared light wavelengths through a filter with two differences torsional filter, a filter passing through extremely sensitive to moisture infrared, it is precisely the water receiver band ; another over multiple wavelengths of infrared pass filter , not grams less than the water reception . Tested materials revealed in the infrared light beam through the reflection in the infrared detectors collect light becomes weak current through the expansion of the two wavelengths are indicated by the ratio of signal meter display , you can measure the moisture content.
2 , the microwave moisture meter
Microwave moisture meter task logic high resonance measurement accuracy , it is the application of the microwave resonance frequency of 2000 ~ 3000 MHz. After the transmission of the microwave moisture-containing material, a fragmentary electromagnetic energy received by water molecules leaving the microwave intensity somewhat attenuated. On the other hand , an electric field on the water molecules of oxygen ions , hydrogen ions into positive and negative effects of the resonance frequency.
Microwave moisture meter square foremost by the microwave and microwave attenuator vibrator constituted microwave signal emitted by the waveguide via the sample was exposed to microwave attenuator , enlarged and detector indicating instrument after the show , you can measure the moisture content .
Second, the two kinds of water meter in comparison with the
Because infrared moisture meter for on-line non-contact measurement , and thus has a strong production conditions and prerequisites of compliance, such as high temperature , high humidity, with erosion of the material effect , other measurement limitations big , no special requirements for material temperature .
Microwave moisture meter for the contact measurement , and thus the measured material circumstances have higher requirements , such as the case of temperature, humidity, corrosive materials , etc., the appearance of the product characteristics have little effect on its consequences measured .
After cf can be seen, two kinds of truth moisture meter and practice using their own differences, so hood innovative enterprises in the selection of equipment when they linked their skill level , usage , and other elements of comprehensive thinking measurement object , so that function moisture meter to reach the best products for the advancement of the supply of equipment to ensure competitiveness in the market .

 

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