LinShang รหัส LS117 เครื่องวัดความหนาแน่นเชิงแสงสำหรับแผ่นฟิล์ม-กระจก,Optical density meter test aluminized film with OD VLT transmittance

LS117 densitometer is an instrument that can measure both optical density and light transmittance. The instrument adopt the diffuse transmission principle which is suitable for the optical density test of aluminized film, film, X-ray film, lens ink and other materials. The light transmittance test of opalescent translucent materials and frosted matte materials, such as zirconia, opalescent acrylic and so on. The light source of the instrument complies with the CIE photopic luminosity function and can pass the inspection of Chinese national metrological institute.

Related knowledge of optical density: optical density, abbreviated as OD. It is defined as the logarithm of the ratio of incident light to transmitted light, or the logarithm of the light transmittance reciprocal. The calculation formula is OD = log10 (incident light / transmitted light) or OD = log10 (1 / light transmittance). Generally, when testing materials with very low light transmittance, it is difficult to compare the differences between the materials using the light transmittance value. The data will be more intuitive after converting into optical density values.

High resolution, wide optical density measurement range The optical density meter has wide measuring range. The optical density value can be measured to OD 6. The transmittance resolution is up to 0.005%
Light transmittance and optical density are measured simultaneously During the test, the interface displays both the transmittance value and the optical density value of the material
	Diffuse transmission light path design The LS117 portable densitometer uses a diffuse transmission light path design, which has the same effect of the integrating sphere. There are relevant instructions in "GB / T 11500-2008 / ISO 5-2: 2001". The regulation has stated that “Use opale glass method instead of integrating sphere method as the basis of ISO standard diffuse transmission density"
High-precision and great accuracy The light source complies with the CIE photopic luminosity function to ensure that it passes the testing of the Chinese Metrology Institute

Parameter	Value
Light Transmittance Measurement Accuracy	±1% (0%-50%) ±2% (50%-100%)
Light Transmittance Resolution	0.0005% (0%-10%) 0.005% (10% -100%)
Optical Density Measurement Range	0.000OD-6.000OD
Optical Density Measurement Accuracy	±0.02 (0-2.00OD) ±1% (2.00-4.00OD) ±2% (4.00-6.00OD)
Optical Density Resolution	0.001 OD (0.00-2.00OD) 0.01 OD (2.00-4.00OD) 0.1 OD (4.00-6.00OD)
Aperture	2mm
Light Source	380nm-760nm, conforming to CIE photopic luminosity function
Weight	About 576g (without battery)
Power Supply	4*AAA alkaline dry battery
Display	240*160 dot-matrixes LCD
Dimension	148mm×76mm×26mm (L*W*H)