Product Overview
长行程。满精度。零损失。
The RM20 measures linear displacement through the same inductive principle as the RM10, driven by the AFEA1001 IC and a dedicated linear controller. Its signature feature is infinite cascading: scale segments join without accumulated error, so measurement range grows without sacrificing accuracy.
- 0.03µm 绝对直线精度
- 无限级联——扩展量程不损失精度
- 最高1 m/s 直线速度
- 对油污、切削液、粉尘与金属屑免疫
- IP67，−40~+85°C，通过振动与冲击测试
- RS485 · BISS-C · SSI，共用8针端子
分辨率17-bitabsolute linear measurement
精度0.03 µmover full measuring range
最高转速1 m/scommunication ≤ 16 kHz
Measuring range∞ cascaderange grows, precision holds
| Product model | RM20 |
| 核心芯片 | AFEA1001 + Xianji 5361 linear controller |
| 测量原理 | Inductive (eddy-current coupling) |
| 分辨率 | 17-bit |
| Absolute accuracy | 0.03 µm |
| Maximum linear speed | 1 m/s |
| Measuring range | Infinite cascading — accuracy unaffected by range extension |
| Communication protocols | RS485 / BISS-C / SSI |
| Communication frequency | ≤ 16 kHz |
| Supply voltage | 2.5 V – 5.5 V |
| Working current | ≤ 15 mA |
| 工作温度 | −40 °C to +85 °C |
| Protection rating | IP67 (optional enhanced coating) |
| ESD protection | IEC 61000-4-2, ±12 kV |
| Vibration | 10 Hz – 2000 Hz, XYZ axes, 2 h each |
| Mechanical shock | 980 m/s², 11 ms, 3 times per direction |
| Low-power modes | Sleep < 25 µA · Deep Sleep < 2 µA |
交互演示
体验 RM20 测量原理
沿标尺拖动读数头——实时查看绝对线性位置与17位计数更新
点击并拖动读数头
RM20
位置589.200 mm
计数 · 17位19,640,000
分辨率0.03 µm
行程59%
标志性特性
无限级联原理解读
传统直线编码器随尺长增加而精度下降，超长尺带也昂贵易损。RM20通过周期映射函数让尺段无缝拼接：
- 增加尺段即可扩展量程——精度始终保持在0.03µm
- 无机械接缝，尺段之间无标定漂移
- 适用于磁悬浮轨道、长行程直线电机与龙门系统
应用场景
RM20 的用武之地
直线电机
半导体、激光与增材制造设备中直线电机平台的精密定位。
磁悬浮系统
无限级联满足长磁悬浮运输与搬运线的量程需求，精度无损。
精密平台
计量、检测与光子对准中的纳米级运动平台。
自动化产线
Long conveyor and gantry feedback in oily, dusty production environments where optical scales fail.
仓储与物流
为全天候运行的高速分拣机与穿梭车提供位置反馈。
New energy systems
Linear actuators for solar tracking and wind applications in extreme outdoor temperature ranges.
