描述

在一些場(chǎng)合會(huì)使用測(cè)量齒輪改變電機(jī)或負(fù)載的轉(zhuǎn)速特性，以便于速度或位置的測(cè)量，如圖2所示為一個(gè)齒輪比為1：3的測(cè)量齒輪。如果所用的編碼器為絕對(duì)值編碼器，那么在發(fā)生溢出時(shí)，編碼器返回值的零點(diǎn)與電機(jī)/負(fù)載的零點(diǎn)就出現(xiàn)偏移，偏移量的大小取決于齒輪比。一旦編碼器返回值發(fā)生溢出，負(fù)載的實(shí)際位置值就不可用了。

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主營(yíng)：世界知名品牌的PLC、DCS系統(tǒng)備件模塊

②Schneider(施耐德電氣)系列產(chǎn)品》

③General electric(通用電氣)系列產(chǎn)品》

④Westinghouse（美國(guó)西屋）系列產(chǎn)品》

⑤SIEMENS(西門(mén)子系列產(chǎn)品)》

⑥銷(xiāo)售ABB Robots.FANUC Robots、YASKAWA Robots、KUKA Robots、Mitsubishi Robots、OTC Robots、PanasonicRobots、MOTOMAN Robots。

⑦estinghouse（西屋）：OVATION系統(tǒng)、WDPF系統(tǒng)、MAX1000系統(tǒng)備件。

⑧Invensys Foxboro（福克斯波羅）：I/A Series系統(tǒng)，F(xiàn)BM（現(xiàn)場(chǎng)輸入/輸出模塊）

順序控制、梯形邏輯控制、事故追憶處理、數(shù)模轉(zhuǎn)換、輸入/輸出信號(hào)處理、數(shù)

據(jù)通信及處理等。Invensys Triconex:冗余容錯(cuò)控制系統(tǒng)、基于三重模件冗余（TMR）

結(jié)構(gòu)的zui現(xiàn)代化的容錯(cuò)控制器。

⑨Siemens(西門(mén)子)：Siemens MOORE，Siemens Simatic C1，Siemens數(shù)控系統(tǒng)等。

⑩Bosch Rexroth（博世力士樂(lè)）：Indramat，I/O模塊,PLC控制器,驅(qū)動(dòng)模塊等。

◆Motorola（摩托羅拉）：MVME 162、MVME 167、MVME1772、MVME177等系列。

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