联系人:何经理
邮箱:2235954483@qq.com
电话:13313705507
地址: 福建漳州市龙海市福建省漳州开发区招商大厦707号
| 品牌 |
NI |
型号 |
PXIe-5665 |
| 类型 |
DCS |
加工定制 |
否 |
| 是否进口 |
是 |
|
尽管智能手机已经存在无线充电板,但它们只有在手机静止时才能工作。对于汽车来说,这与目前在充电站充电一两个小时的做法一样不方便。
工程师们展示了一种技术,有朝一日可以扩大规模,为高速行驶的汽车提供动力。在短期内,该系统很快就会使机器人在仓库和工厂车间移动时无线充电变得实用,从而消除停机时间并使机器人几乎可以全天候工作。
无线充电器通过产生磁场来传输电力,该磁场以一定频率在接收设备上的磁线圈中产生共振振动。问题在于,如果源和接收器之间的距离变化很小,谐振频率也会发生变化。
此前,研究人员开发了一种无线充电器,即使与接收器的距离发生变化,它也可以传输电力。他们通过结合放大器和反馈电阻器来做到这一点,使系统能够随着充电器和移动物体之间距离的变化自动调整其工作频率。但最初的系统效率不够实用。放大器在内部使用了如此多的电力来产生所需的放大效果,以至于系统仅传输了流经系统的 10% 的功率。
在这项新工作中,研究人员将系统的无线传输效率提高到 92%。关键是用效率更高的开关模式放大器替换原来的放大器。这种放大器并不新鲜,但它们只能在非常的条件下产生高效放大。
新原型可以在两到三英尺的距离内无线传输 10 瓦的电力。扩展系统以传输汽车所需的数十或数百千瓦的功率没有任何基本障碍,并且该系统的速度足以为超速行驶的汽车提供补给。的限制因素是汽车电池吸收所有能量的速度有多快。
无线充电器不应该构成健康风险,因为即使是那些足够强大的汽车也会产生完全符合既定安全准则的磁场。磁场可以通过人传输电力,而他们没有感觉。
尽管无线充电器可能需要数年时间才能嵌入高速公路,但机器人和无人机的机会更为直接。将充电器嵌入地板或屋顶比在长长的高速公路上要便宜得多。
凭借过硬的技术实力和稳定的产品质量,ABB钢铁及有色金属部携旗下型的完整电气自动化系统解决方案参与到北方铜业股份有限公司(以下简称北方铜业)的森德威四立柱式高性能压延铜带箔二十辊可逆铜箔轧机项目中。该项目作为北方铜业母公司山西省属中条山集团“十三五”发展规划重点项目、山西省运城市2020年“1311”重点建设工程,建成后将成为年产5万吨高性能压延铜带箔的一流现代化铜带箔生产线,其主导产品铜带、铜箔定位于国家重点发展的铜基新材料,将广泛应用于航空航天、5G通讯产业、新能源、智能制造等领域,拥有广阔的市场前景。
以下是我司【主营产品】,有需要可以发来帮您对比下价格哦!
主营:世界品牌的PLC 、DCS 系统备件 模块
①Allen-Bradley(美国AB)系列产品》
②Schneider(施耐德电气)系列产品》
③General electric(通用电气)系列产品》
④Westinghouse(美国西屋)系列产品》
⑤SIEMENS(西门子系列产品)》
⑥销售ABB Robots. FANUC Robots、YASKAWA Robots、KUKA Robots、Mitsubishi Robots、OTC Robots、Panasonic Robots、MOTOMAN Robots。
⑦estinghouse(西屋): OVATION系统、WDPF系统、MAX1000系统备件。
⑧Invensys Foxboro(福克斯波罗):I/A Series系统,FBM(现场输入/输出模块)顺序控制、梯形逻辑控制、事故追忆处理、数模转换、输入/输出信号处理、数据通信及处理等。Invensys Triconex: 冗余容错控制系统、基于三重模件冗余(TMR)结构的现代化的容错控制器。
⑨Siemens(西门子):Siemens MOORE, Siemens Simatic C1,Siemens数控系统等。
⑩Bosch Rexroth(博世力士乐):Indramat,I/O模块,PLC控制器,驱动模块等。
◆Motorola(摩托):MVME 162、MVME 167、MVME1772、MVME177等系列。
PLC模块,可编程控制器,CPU模块,IO模块,DO模块,AI模块,DI模块,网通信模块,
以太网模块,运动控制模块,模拟量输入模块,模拟量输出模块,数字输入模块,数字输出
模块,冗余模块,电源模块,继电器输出模块,继电器输入模块,处理器模块。
我们的优势是:全新原装,,供给一年质保!本公司所有产品都经过严格检测,欢迎询价,收购。只需您有诚心,本公司将会给你供给一个比同行优势的价格,共同拿下单子。
Although wireless charging pads already exist for smartphones, they only work if the phone is sitting still. For cars, that would be just as inconvenient as the current practice of plugging them in for an hour or two at charging stations.
Engineers have demonstrated a technology that could one day be scaled up to power a car moving down the road at high speed. In the nearer term, the system could soon make it practical to wirelessly recharge robots as they move around in warehouses and on factory floors, eliminating downtime and enabling robots to work almost around the clock.
Wireless chargers transmit electricity by creating a magnetic field that oscillates at a frequency that creates a resonating vibration in magnetic coils on the receiving device. The problem is that the resonant frequency changes if the distance between the source and receiver changes by even a small amount.
Previously, the researchers developed a wireless charger that could transmit electricity even as the distance to the receiver changes. They did this by incorporating an amplifier and feedback resistor that allowed the system to automatically adjust its operating frequency as the distance between the charger and the moving object changed. But that initial system wasn’t efficient enough to be practical. The amplifier used so much electricity internally to produce the required amplification effect that the system only transmitted 10% of the power flowing through the system.
In the new work, the researchers boosted the system’s wireless-transmission efficiency to 92%. The key was to replace the original amplifier with a far more efficient switch mode amplifier. Such amplifiers aren’t new but they will only produce high-efficiency amplification under very precise conditions.
The new prototype can wirelessly transmit 10 watts of electricity over a distance of two or three feet. There aren’t any fundamental obstacles to scaling up a system to transmit the tens or hundreds of kilowatts that a car would need and the system is more than fast enough to resupply a speeding automobile. The only limiting factor will be how fast the car’s batteries can absorb all the power.
The wireless chargers shouldn’t pose a health risk because even those that are powerful enough for cars would produce magnetic fields that are well within established safety guidelines. The magnetic fields can transmit electricity through people without them feeling a thing.
Though it could be years before wireless chargers become embedded in highways, the opportunities for robots and drones are more immediate. It’s much less costly to embed chargers in floors or on rooftops than on long stretches of highway.