The key components are an infrared source, a light tube, an interference (wavelength) filter, and an infrared detector. The gas is pumped or diffuses into the light tube, and the electronics measures the absorption of the characteristic wavelength of light. NDIR sensors are most often used for measuring carbon dioxide.The best of these have sensitivities of 20â50 PPM.he gas is pumped or diffuses into the light tube, and the electronics measures the absorption of the characteristic wavelength of light. NDIR sensors are most often used for measuring carbon dioxide. The best of these have sensitivities of 20â50 PPM.
A stomach wrap can help reduce excess belly fat. Fat that accumulates around your abdomen isn't like other kinds of fat on your body. Excess abdominal fat, according to Harvard Medical School, increases your risk of cardiovascular disease, hypertension and diabetes. Many methods are available to help you lose belly fat, including stomach wraps.
Plastic wrap, also called cling film or cling wrap, is a thin, plastic film used mainly for covering food items to keep them fresh. It was invented in 1953 by a scientist attempting to create a thick plastic covering for his car. GladÂ® Wrap and Saranâ¢ Wrap are the two most well known brands worldwide and are often used as generic terms. The first plastic wrap on the market was made of polyvinylidene chloride (PVC), commercially known as Saran, though today many brands â including Saranâ¢ Wrap â are made of low density polyethylene (LDPE).