Thermally Inactive Reflective Liner material is a 3layer co-ertruded Geomembrane. The product core and inferior layer remain black which doesn`t affect any technical properties of the liner. By changing the composition of the superior layer the addition of a pure white pigment composed of UV additives, Tianhai created a product that offers additional on-site benefits suitable for various applications.
Features:
Geomembranes were created to contain solids and fluids for very long periods. As such, they need to have high endurance properties. One of the best additives for plastics to resist to UV degradation is carbon black. However, this results in having black geomembrane. Black geomembrane will get very hot when exposed to sunlight because of its high expansion/contraction coefficient.
• Minimizes heat absorption – and resulting thermal expansion – by up to 50%
Thermally Inactive Reflective Liner Thermally Inactive Reflective Liner, Hdpe Fish Farm Pond Liner, Hdpe Material Pond Liner, Hdpe Dam Liner Shandong Tianhai New Materials Engineering Co., Ltd , https://www.chinatinhy.com
Tianhai innovated in developing a new reflective geomembrane. While having obvious aesthetic advantages, the reflective liner will also reflect the sunlight and reduce the temperature of the geomembrane. This reduction in temperature will reduce the expansion/contraction of the geomembrane which will allow for an easier installation and reduce wrinkles in the liner. For composite liner systems, reducing the wrinkles will increase the intimate contact between the liner and the low permeability sub layer which will lead to a more efficient impermeable system. It will also slow down the aging process and increase its service life.
Another advantage of the reflective geomembrane is the contrast between the white surface layer and the black core of the liner. This allows easy identification of visual defects as they will be more apparent than on traditional black geomembranes.
While reflective geomembranes seem to only offer aesthetical advantages, as expressed above, significant benefits result from using reflective geomembrane over traditional black geomembrane.
• Significantly improves damaged detection via white signal layer
• Available in HDPE, LLDPE, MicroSpike texturing and smooth surface
Introduction to the principle of integrated camera imaging
[ Huaqiang Security Network News ]
The imaging principle of the integrated camera is the key content of this article.
Integrated camera principle
Infrared integrated camera imaging principle In the night vision monitoring system, the conventional method is to use visible light illumination, but this method has the disadvantages of being invisible and easy to expose the monitoring target, so it is less used; the current covert and scientific night vision monitoring is adopted. Infrared camera technology. Infrared camera technology is divided into passive and active. Passive infrared camera technology uses any substance to have infrared radiation above absolute zero (-273 ° C). The higher the temperature of the object, the more infrared radiation is emitted. The most common type of camera made with this principle is the thermal imaging camera. However, this special infrared camera is expensive and therefore limited to military or special occasions.
The active infrared camera technology uses infrared light to radiate "illumination" (mainly infrared light), and applies ordinary low-light black-and-white camera, color-to-black-and-white camera or infrared low-light color camera to feel the infrared light reflected from surrounding scenes and environment. Night vision monitoring. The active infrared camera technology is mature and stable, and has become the mainstream of night vision surveillance. The infrared integrated camera is an integrated camera device that integrates a camera, a protective cover, an infrared light, and a power supply cooling unit. The basic principle of night vision is that ordinary CCD black and white cameras can be used to sense the spectral characteristics of infrared light (that is, it can sense visible light and infrared light), and use infrared light as an "illumination source" for night vision imaging. The power and angle of the infrared light, the configuration of the camera, the infrared lens with a certain focal length, and whether there is a good power supply cooling process are important parameters for judging the performance of the infrared integrated camera. At present, there are many products on the market that are separated from the infrared projector. This requires the user to have a sufficient understanding of the performance of the infrared light and the camera, and can make a reasonable match according to the angle of the infrared light and the camera lens parameters.