Eddy current paint thickness meter Eddy current thickness gauges are generally used to measure the thickness of insulating coatings on non-ferrous metal substrates. This method is also a non-destructive measurement method. The instrument uses a fine wire coil capable of conducting high frequency AC (above 1MHz) to generate an alternating magnetic field on the surface of the instrument probe. When the probe approaches a conductive surface, the alternating magnetic field will form eddy currents on the surface. The characteristics of the base material and the distance between the probe and the base (that is, the coating thickness) will affect the size of the eddy current. The eddy current generates a relative electromagnetic field, which...
Linshang Technology's coating thickness gauge can automatically switch the measurement substrate, and can measure the coating thickness on various metal substrates such as magnetic and non-magnetic. The measurement of the instrument adopts the two principles of Hall effect and eddy current. Linshang Technology released a variety of coating thickness gauges in 2019, all of which adopted a unified display. Multiple measurements can be achieved with one button. Currently the instrument supports three measurement modes: iron-based measurement, non-ferrous-based measurement and automatic measurement mode. In the automatic measurement mode, the instrument can automatically switch the measurement substrate, and can measure the coating...
Fly killers can use ultraviolet rays to attract light-tending insects and induce insects to approach the UV tube. When insects come into contact with the fly paper or high-voltage electric fence placed in the fly killer, they will be stuck or electrocuted to kill them. The effect of insects. The effect of the fly-killing lamp is closely related to the ultraviolet lamp tube. As an indispensable instrument for monitoring the intensity of the ultraviolet lamp tube, the UV intensity tester can help the user find the failed lamp in advance and replace it. 1. The working principle of the three fly kill lamps At present, there are three common fly-killing lamps, photocatalyst fly-killing lamps, stick-trap fly-killing lamps and electric...
Why will UVLED lamps replace high-pressure mercury lamps? The advantage of UVLED lamps and high-pressure mercury lamps is that there is no heat radiation High-power LEDs do not emit infrared light. The surface temperature of the irradiated product rises below 5 degrees Celsius, and the traditional mercury lamp method of ultraviolet curing machine generally raises the surface of the irradiated product by 60 to 90 degrees Celsius, which causes the positioning of the product to shift, resulting in product failure. The UV-LED curing method is suitable for thermally sensitive and high-precision bonding process requirements such as plastic substrates, lens bonding, electronic products, and optical fiber cables. Environmentally friendly and...
What is the intensity of ultraviolet radiation? First of all, there are two types of ultraviolet UV lamps: UVA-340 and UVB-313. UVA-340 Wavelength: 315~400nm, Irradiation intensity: 1.0W/m2. UVB-313 Wavelength: 280~315nm, Irradiation intensity: 0.68W/m2. The editor recommends that you choose the corresponding UV lamp according to the test requirements of the product. The service life of the above UV lamps is 1800~2500 hours. If it is a UV germicidal lamp used in hospitals, the intensity is lower than 70uW/cm2. The lamp tube must be replaced. We can use UV light meter to test the germicidal lamp irradiation intensity. If the intensity of the germicidal lamp attenuates, the sterilization effect won't be achieved. UVC band is usually used...
LS126C UV light intensity meter parameters 1. Spectral response: λ:(230nm-280nm);λp = 254nm 2. Measuring range: 0-8000 uW/cm2 3. Resolution: 0.1 μW/cm2 4. Measurement accuracy: ±10% 5. Host size: length 130mm × width 70mm × height 28mm 6. Probe size: diameter 45mm×thickness 16mm 7. Probe cable length: 1 meter 8. Instrument weight: about 250 grams 9. Battery: 4 AAA alkaline dry batteries standard 1. WS/T 367-2012 "Technical Specification for Disinfection in *** Institutions" P15, Appendix A.3 Effect monitoring of ultraviolet disinfection. 2. The 2009 version of "*** Disinfection Technical Specification" P9, 2.3 UV disinfection. 3. Ultraviolet germicidal lamp GB19258-2003 P4, rated value of ultraviolet radiation illuminance. The above...
Before choosing a gloss meter, we first need to briefly introduce the specific factors that affect the gloss of the stone. We mainly start with the particle size of the stone and the grinding and polishing process. It should be mentioned that most stone materials are natural minerals, the particles are often not uniform, and there is a huge difference in the overall size of the particles. In general, the smaller and more uniform the particles, the higher the gloss, that is, the stronger the ability to refract light. When we look at the stone from different directions, the visual gloss is also different, which is related to the structure of the human eye.