ST is the world's largest supplier of proximity sensors. Recently, it introduced the industry's smallest second-generation proximity sensor with dimensions of only 2.4x4.4x1mm, the farthest detection range of up to 2 meters and the accuracy of ± 3% Time can reach the millisecond level, the target application market is the tap switch, smart phones and projectors auto focus. Jerry Chang, technical marketing manager for ST's imaging products division, said: "Today's automatic switch faucets based on infrared sensing are subject to reliability issues due to a variety of external factors, such as ambient temperature and soap bubbles. Others rely on lasers Transmitting and receiving principle of proximity sensor because of the ambient temperature, ambient light and reflective objects such as color and other factors have unreliable work, ST second-generation proximity sensor not only effectively solve the problem of unreliable work, but the size also achieved the industry's smallest, The maximum detection distance is also done 2 meters. " At present, Meizu, Google and Sony's smart phones have adopted ST's 2nd generation laser range finder. In addition, Zhang Chengyi added: "Our accuracy can reach centimeter level, power consumption is microampere level, such precision, power consumption and size really I have not seen in the industry." Today's applications for proximity sensors are becoming more widespread. Residential smart door locks, residential access cameras and projectors are the three most typical application scenarios, they can be achieved through its auto-focus, which can accurately achieve a variety of human-friendly features such as cell access control system can accurately determine whether it is Households, if so, you can start to welcome home terms, to create a unique residential warm home environment. Compared with the first generation of ST proximity sensors, the detection range of the second generation is five times higher than that of the previous generation, reaching 2 meters and can be used in printers, copiers and home appliances. For example, the display is activated when an object is detected; collision and fall prevention of toys and robots; proximity detection and lighting control of offices, corridors and public buildings; activation of toilet equipment; detection of parking spaces and garages Parking spaces. Proximity sensors integrate the circuitry required for these applications without the need for additional rasters and without requiring that the IR emitter and the photodiode remain aligned. In addition, the small size of the proximity sensor device can effectively save space, but also allows engineers more flexibility in the design of sensor placement and placement. Zhang Chengyi said: "Now ST second-generation proximity sensor detection range can be done 2 meters, we are also developing the next generation of products, the goal is to reach 3 to 4 meters of the measurement distance."
Process:
The foil roll is introduced into the rubber roller of the feeding device via the decoiling machine and then would in the winding former after passing through the edge of the Shearing Machine and the roller wheel of the burr pressing device. The inter layer insulation coil is erected in the rear of the coiling optical shaft of the Foil Winding Machine and wound in the winding former after sheared by the trimming roll and the shears blade.
Functional feature:
1. The device adopts and electrical servo deflection correction system to achieve manual/automatic adjustment of the foil position more conveniently and reliably.
2. An advanced electrical control technology of constant tension is adopted to control the tension of the foil and the inter layer insulation, with the features such as quantitive, accurate and convenient control of the tension no mechanical friction. The required tension can be maintained for forward winding, stop and backward winding, ensuring compact coils.
3. The inter layer insulation adopts a cantilever mechanism, convenient for feeding and the mechanism can be pulled out as a whole without guide rails outside the body.
4. Automatic welding mechanism and roll shearing mechanism adopt ball screws and linear guide rails for drive, ensuring the service life and accuracy of the device.
5. This device first adopts the all-in-one sing frame, solving problems such as few coil urns and deflection correction lag.
6. This device is a hi-tech product produced by combining with actual production on the basis of many similar products at home and abroad. The whole machine is controlled via an advanced PLC touch screen, with high automation level and simple and reliable operation, representing higher production level of domestic foil winding machines.
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