大尾巴狼神 发表于 2017-11-13 14:07 我就是想在第二种和第三种中间选一种。 你这一说,就明白了。 谢谢! |
欢迎继续阅读楼主其他信息
第三种好用,第二种不太准也不灵敏,第一种贴纸条太麻烦还会破坏静平衡,而且必须对的很准。三种我都买过,最后留了第三种,瑞吉贵的有道理的 |
瑞集的是另外两种的两倍,可第二种的原理和瑞集的又一样。区别就是瑞集的贵得没道理。 |
这三个都有啥区别 |
霍尔必须有磁铁,要做好平衡,当然设定里面可以设置装了磁铁,多个的话精度高。 魔镜没猜错应该是靠液晶屏幕刷新率与桨转速一致这样来测的 |
哦,我理解错了。第3)种也是接收光照式的。 但装有霍尔元件的转轴会引起探测器的荧光,影响到了探测精度。没有霍尔元件的发动机没这问题。应该是这个意思。 |
沙漠金鹰 发表于 2017-11-11 09:59 倒像是光敏电阻。为什么说跟霍尔传感器有关? Prolux PX2711 RC Model Digital Wireless Mini Tachometer Specification: 1 It looks fancy and compact in size and very handy to use. 2 NEW tachometer with data memorizing and low voltage alarming function 3 It measures RPM of 2-9 bladesprop. 4 Multiply the readout by 10 for final rpm reading, it shows 4 digitals in a 10-99,999 rpm range 5 It comes with a replaceable 3V Lithium battery. 6 There is an auto shut-off function after five minutes when no signal received. 7 Display and memorize the maximum rpm value. 8 It needs a little electronic power (20uA) when the tachometer is not in use. This depends on battery’s capacity for life of battery Kindly Remark: -Please try to keep the tachometer stable when measuring data, because the radial luminance is induced by hall sensor element -It’s normal to find the data of tachometer floating when carried it by hand. |
第三种看镜头像感光器 |