KTM P4-75-D600-PTFE

KTM P4-75-D600-PTFE

KTM P4-75-D600-PTFE

A/B相同時(shí)接上負(fù)載，同時(shí)接入示波器看波形圖；
2， 在上述1的要求下，并在編碼器連上電機(jī)在高速狀態(tài)下的看波形失真情況；
3， 在上述1和2的要求下的，編碼器信號(hào)接上長距離信號(hào)電纜后端的信號(hào)波形失真情況。

KTM P4-75-D600-PTFE觀察波形：
1，在A/B相同時(shí)接上，并3000轉(zhuǎn)/分，并信號(hào)遠(yuǎn)傳100米電纜以后，波形已經(jīng)有失真，但仍然能清晰分辨A/B相的上升下降及相位差；
2，上升沿下降沿已經(jīng)不再陡直，說明100米電纜線上有電感、電容阻抗分布，對(duì)于信號(hào)的上升下降響應(yīng)有影響；
3，信號(hào)在低電平（編碼0）和高電平（編碼1）上已經(jīng)不再平直，尤其是在A相上升下降時(shí)B相信號(hào)有小的波動(dòng)，B相也如此。說明100米電纜線上的有電容電感效應(yīng)，A相和B相的上升下降時(shí)相互之間有耦合感應(yīng)；
4，信號(hào)低電平時(shí)波動(dòng)小于2V，信號(hào)高電平時(shí)，波動(dòng)后整體電壓高于18V，如以低電平編碼0信號(hào)的閾值為2V,高電平編碼1信號(hào)的閾值為18V（優(yōu)于HTL信號(hào)標(biāo)準(zhǔn)），信號(hào)為清晰識(shí)別筒形狀方波（圖中粉紅色線），相位差接近90度，仍然可以清晰識(shí)別使用。
結(jié)論：該編碼器信號(hào)在3000轉(zhuǎn)/分轉(zhuǎn)速，并100米信號(hào)電纜遠(yuǎn)傳下，信號(hào)遠(yuǎn)傳能力強(qiáng)，抗干擾好，仍然能清晰識(shí)別A/B信號(hào)，可以使用。
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