# I am the Watcher. I am your guide through this vast new twtiverse.
# 
# Usage:
#     https://watcher.sour.is/api/plain/users              View list of users and latest twt date.
#     https://watcher.sour.is/api/plain/twt                View all twts.
#     https://watcher.sour.is/api/plain/mentions?uri=:uri  View all mentions for uri.
#     https://watcher.sour.is/api/plain/conv/:hash         View all twts for a conversation subject.
# 
# Options:
#     uri     Filter to show a specific users twts.
#     offset  Start index for quey.
#     limit   Count of items to return (going back in time).
# 
# twt range = 1 1
# self = https://watcher.sour.is/conv/7nu5znq
目前研究的电动汽车移动式充电方式都有哪些?有哪些优缺点?**
按照无线充电的原理,现在公认比较成熟的方式有三种。

-
电磁感应**
- 电磁谐振**
-
无线电波**

## _电磁感应_**

_利用通电线圈的 交流电 变化,产生磁场(传输端)。该磁场将会无视非金属的阻隔,传递能量到附近的线圈上(接收端),再由磁场转化成电能。_**

![](https://pic3.zhimg.com/v2-ee915b4e7e95acf7d3b4eff12c3999f8_720w.jpg? ... ⌘ Read more