The new materials technology research team of Chongqing University of Arts and Sciences led by Tu Mingjun, an academician of the Chinese Academy of Engineering, recently developed a silver nanowire touch screen mobile phone prototype. This new material technology has the advantages of low cost and good electrical conductivity compared with traditional materials.
Researcher Li Wei, assistant to the president of the New Materials Technology Research Institute of Chongqing University of Arts and Sciences, said that touch screens are widely used in indium tin oxide materials, accounting for 40% of the cost of control panels. Indium is an expensive rare element material. The alternative material graphene must be produced under vacuum, and the finished product size and efficiency are not high and the cost is high. Silver nanowires can produce 10 square meters per minute with greater speed and capacity.
It is understood that the silver nanowire transparent conductive film touch screen technology has the advantages of high light transmittance, high electrical conductivity, large size, low cost (50% of the cost of the existing touch screen), and high flexibility (for wearable devices). The team led by Tu Minghao successfully developed the product and has already produced mobile phone samples. Touch screens produced using this technology do not need to be produced under vacuum and can be printed continuously.
It is understood that the US Apple and South Korea's Samsung are conducting trials of silver nanowire touch screens. At present, the technology of the new material research and development team of Chongqing University of Arts and Sciences has reached the same level in the world.
The Unipolar stepper motor operates with one winding with a center tap per phase. Each section of the winding is switched on for each direction of the magnetic field. Each winding is made relatively simple with the commutation circuit, this is done since the arrangement has a magnetic pole which can be reversed without switching the direction of the current. In most cases, given a phase, the common center tap for each winding is the following; three leads per phase and six leads for a regular two-phase Stepper Motor.
Unipolar stepper motor,Unipolar motor,Unipolar and bipolar stepper motor,Unipolar bipolar stepper motor,4 phase unipolar stepper motor,5 wire unipolar stepper motor
Shenzhen Maintex Intelligent Control Co., Ltd. , https://www.maintexmotor.com