Çin CHNSpec Technology （Zhejiang）Co.,Ltd Şirket Davaları

What is haze? Haze is also called turbidity. It indicates the degree of unclearness of transparent or translucent materials. It is the appearance of cloudiness or turbidity caused by light scattering inside or on the surface of the material.   What is transmittance? It is expressed as a percentage of the ratio of the luminous flux transmitted through the material to the incident luminous flux. Usually refers to the standard light source of a beam of parallel light perpendicular to the film, sheet, plate-shaped transparent or translucent material, the ratio of the luminous flux(T1) transmitted through the material and the incident light flux (T2)to the transparent material.   Relationship between haze and transmittance Two very important optical performance indicators of transparent materials, such as aerospace plexiglass require light transmittance greater than 90% and haze less than 2%. Generally speaking, materials with high light transmittance have low haze value and vice versa, but not completely.. Some materials, such as ground glass, have high light transmittance and high haze values. So light transmittance and haze are two independent indicators. Test principle When testing, when there is no incident light, the received light flux is 0. When there is no sample, all the incident light is transmitted, and the received light flux is 100, which is T1; At this time, the parallel light is absorbed by the light trap, and the received light flux is the scattered light flux T3 of the instrument;Then place the sample, and the instrument receives the light flux through the sample as T2; At this time, if the parallel light is absorbed by a light trap, the light flux received by the instrument is the sum T4 of the scattered light flux of the sample and the instrument.Based on the measured values of T1, T2, T3, and T4, light transmittance and haze can be calculated.   Transmittance:        Haze value:   Why measure haze and transmittance? The first is the screen industry. In the screen industry, companies like screen covers, light guide plates, and diffuser plates have very high requirements for these two parameters. Second, the glass industry, whether it is outdoor or indoor, glass products have light transmission performance. The requirements are very high, the haze of the glass needs to be very low, and the transmittance is high; and the film industry is very widely used.                                          cellphone screen                    watch   How haze meter working theory? This is the light path structure diagram of this haze meter. The light source emits parallel light, passes through the sample and enters the integrating sphere. Part of the transmitted light is parallel light and part is scattered light. A photoelectric sensor is installed on the inner wall of the integrating sphere perpendicular to the parallel beam to obtain the light flux signal. The light trap is used to absorb all the incident light when there is no sample in the test port. The light trap is equipped with a shutter, which is coated with the same high reflectivity coating as the integrating sphere wall. The shutter can be opened and closed as required. Light trap: When measuring the haze, the light trap will open (because the scattered light will be collected to calculate the haze); when measuring the total transmittance, the light trap will be closed; haze meter can be automatically measured, all you have to do is place the sample at the test    

Haze : Wide Angle Scattering   The light before passing through the sample is called incident light, the entire light after passing through the sample is called transmitted light, and the scattered light with a scattering angle greater than 2.5 ° after the transmission sample is called scattered light, haze Is the scattered light than the transmitted light (as show in green color of picture 2) and Tt is the total transmitted light (as show in pink color of picture 1).   So haze equation is Haze = Td / Tt.     Haze Measuring Instrument   We will introduce how to measure haze by CHNSpec Haze Meter TH-100. It can meet both ISO and ASTM standards.   TH-100 haze meter   What is the measurement method of TH-100? This is the light path structure diagram of this haze meter. The light source emits parallel light, passes through the sample and enters the integrating sphere. Part of the transmitted light is parallel light and part is scattered light. A photoelectric sensor is installed on the inner wall of the integrating sphere perpendicular to the parallel beam to obtain the light flux signal. The light trap is used to absorb all the incident light when there is no sample in the test port. The light trap is equipped with a shutter, which is coated with the same high reflectivity coating as the integrating sphere wall. The shutter can be opened and closed as required. Light trap: When measuring the haze, the light trap will open (because the scattered light will be collected to calculate the haze); when measuring the total transmittance, the light trap will be closed; haze meter TH-100 can be automatically measured, all you have to do is place the sample at the test.     For more details of haze meter TH-100, you can refer to the following url   1). Haze Meter TH-100 Working Video https://www.youtube.com/watch?v=qtyhHWB8r_Y&t=24s   2). TH-100 Haze Meter Accuracy Test Video https://www.youtube.com/watch?v=k3b4X-kERss&feature=youtu.be   CHNSpec Tech is specialized on provide color, gloss and haze measurement solutions. If any future inquiry, you are welcome to contact me for more details.

Renk Ölçümü Spektrofotometre CS-820N Opak ve Şeffaf Plastik için CS-820N, hem opak, yarı saydam hem de saydam malzemelerin ölçülmesini sağlamak için hem D / 8 hem de D / 0 geometrisini içerir. Müşterilerden dört plastik numune alıyoruz. Örnek renk değerini ölçmeleri gerekir. CS-820N renk ölçüm spektrofotometresi ile plastiğin renginin nasıl ölçüleceğini tanıtacağız. Adım 1. Örnekleri Hazırlayın Gri ve Mavi Plastik (Opak) Şeffaf ve Sarı Plastik (Şeffaf) Adım 2. Ölçüm ve Test Sonuçları 1. Alet talimatlarına göre siyah beyaz kalibrasyon yapın (yansıtma modunda). Beyaz kalibrasyon Siyah kalibrasyon 2. Opak plastik numunelerin renk testi için aşağıdaki cihaz ayarları . 1). Aydınlat : D65 2) .Standart Gözlemci: 10 derece 3). Test Modu: Yansıtma 4). Test Parametresi: L * a * b 5) .Test Modu: SCI 3.Ölçme ve Test Sonucu Test Yöntemi: Bir numune, test sonucunu almak için bir noktayı ölçer. Gri Plastik (Opak) Renk Ölçümü Mavi Plastik (Opak) Renk Ölçümü Gri ve Mavi Plastik Renk Testi Sonucu ad L bir b Mavi Plastik 44.51 -12,73 -34,15 Gri Plastik 46.97 -0,08 -3,04 2. Cihazı geçirgenlik moduna getirin. 1). Aydınlatmak: C 2) .Standart Gözlemci: 2 derece 3). Test Parametresi: L * a * b 3. Alet talimatlarına göre siyah ve hava kalibrasyonu yapın (geçirgenlik modunda). Siyah kalibrasyon Hava kalibrasyonu 3.Ölçme ve Test Sonucu Test Yöntemi: Bir numune, test sonucunu almak için bir noktayı ölçer. Şeffaf Plastik Renk Ölçümü Sarı Plastik Renk Ölçümü Şeffaf ve Sarı Plastik Renk Test Sonucu ad L bir b Şeffaf plastik 87,64 -1,32 2,24 Sarı Plastik 93,56 -22,04 83,07 CHNSpec Tech renk, parlaklık ve pus ölçümü için üretim cihazı konusunda uzmanlaşmıştır. Herhangi bir soruşturma veya soru varsa, bizimle irtibata geçebilirsiniz.