Incremental encoders provide speed, direction and relative position feedback by generating a stream of binary pulses proportional to the rotation of a motor or driven shaft. Lander offers both optical and magnetic incremental encoders in 4 mounting options: shafted with coupling, hollow-shaft, hub-shaft or bearingless. Single channel incremental encoders can measure speed which dual channel or quadrature encoders (AB) can interpret direction based on the phase relationship between the 2 channels. Indexed quadrature encoders (ABZ) are also available for homing location are startup.
Incremental Encoder,6Mm Solid Shaft Encoder,Hollow Rotary Encoder,Elevator Door Encoder Jilin Lander Intelligent Technology Co., Ltd , https://www.jilinlandermotor.com
The price is quite similar to fluorescent light
LED light source lighting is a revolutionary technology application in the lighting industry. As the second generation of energy-saving lamps, it is favored by the industry for its energy-saving, environmentally friendly and healthier elements than the first generation of energy-saving lamps. However, due to the high cost of research and development and the high price of core light source technology products, some very powerful lighting manufacturers are only in the stage of gaining momentum. A few enterprises have rushed to the outdoor street lighting project and indoor and outdoor advertising projects that the government has paid for. In institutions, groups, schools and other enterprises and institutions, sales are too high due to high cost and price. The two companies that I contacted have produced LED bulbs and lamps for household use. The retail price of the bulbs sold for more than 100 yuan, and the lamps sold for more than 600 yuan, which is far from the psychological price expectations of the citizens! According to the successful development of low-cost LED lamps Qiu Kelun, general manager of Zhongshan Changfeng Electronic Appliance Factory, said that the cost of LED bulbs can be greatly reduced. The key is that the LED light source chip used in its research and development plays a key role. The 2W-3.8WLED bulb retail is currently being made. The price can be reduced to 30 yuan, which is very close to the price of high-end fluorescent lamps currently on the market!
Energy-saving without any right, General Manager Qiu Kelun took out a tester and inserted 25W incandescent lamps, 7W fluorescent lamps and 2WLED lamps of the same luminosity into the lamp position. The tester showed that the 25W incandescent lamp consumes 145 mAh, 7W. The fluorescent lamp is 22 mAh, and the 2W LED lamp is only 7 mAh! General Manager Qiu Kelun believes that such a low energy consumption meter can't move! From the light point of view, the incandescent lamp is glaring and the fluorescent light is glaring, LED light The light emitted is very soft.
The “top-hand†LED lamp not only pushes the energy-saving effect of lighting to a new height due to its low energy consumption, long life and high brightness, but also has an unparalleled environmental and health advantage compared with other energy-saving lamps. According to relevant experts, in all kinds of lamps sold in the market, halogen lamps will damage the skin with ultraviolet rays. Some energy-saving lamps with ballasts will emit a small amount of electromagnetic waves to damage the body. Fluorescent lamps will cause damage to the eyes and cause myopia. Mercury is brittle and causes environmental pollution. The "top-hand" LED lamp not only does not have these shortcomings, but also because the outer casing is made of PC material. If it is accidentally dropped onto the hard floor, it will not be broken.
At the same time, the eye-catching statistics released in the past 14th National Eye-Eye Day also showed the results of the 2008 National Student Physique and Health Survey. The detection rate of visual acuity was 31.67% for primary school students, 58.07% for junior high school students, 76.02% for high school students, and 82.68% for college students. At present, China's myopia patients account for 33% of the world, 10% higher than the world average. The total number of glasses worn in the country exceeds 300 million. The problem of eye diseases in Chinese people is serious, and the problem of myopia in young people is particularly prominent. According to Wang Ningli, deputy director of the Chinese Medical Association Eye Branch and vice president of Beijing Tongren Hospital, at present, over 50% of children in China have abnormal eyesight. The number of myopia patients in primary school students has also increased sharply in recent years, while the number of students in middle school is more The geometric trend is rising.
General Manager Qiu Kelun emphasized that the glasses that can't be picked up have always been a big worry in life. The heavy homework pressure is to add weight to the fatigue of young students. After the relaxing summer vacation, the children will be replaced with energy-saving. Environmentally friendly and healthy LED lights, so that "California" and "shunfeng ears" return to the private sector, is a great event for the benefit of future generations to improve the overall quality of the nation, and your contribution is likely to be a pack of cigarettes! 
Zhongshan Changfeng launches low-cost LED energy-saving lamps at prices comparable to fluorescent lamps
Zhongshan Semiconductor Lighting Industry Technology Alliance has just been established for more than a month. The semiconductor lighting industry in Zhongshan City has a good news: Zhongshan Changfeng Electronics has developed a low-cost “top-hand†LED energy-saving lamp after 8 months of research and development, and obtained EU CE certification. Let LED lighting enter the home.