Rotary vs Linear Encoders: how to choose the right absolute feedback
RM10 vs RM20 — the decision framework for rotary and linear axes, with a side-by-side spec comparison.
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ENGINEERING RESOURCES · FREE DOWNLOADS
Datasheets, guides & technical insights
Everything an engineer or buyer needs to evaluate the RM series — download, read, and reach out when you are ready to test.
Downloads
Product documentation
RM10 Datasheet
Complete specifications, interfaces, pinout and ordering information for the RM10 rotary encoder.
RM20 Datasheet
Complete specifications, cascade guidance, interfaces and ordering information for the RM20 linear encoder.
Selection Guide
A decision matrix for rotary vs linear, protocol choice and environment ratings. Request by email.
Insights
From our engineering desk
Practical engineering guides from our team — encoder selection, interface comparisons and robotics trends, written for buyers and engineers.
Inductive vs optical encoders: why the industry is switching
Contamination, LED aging and temperature limits — the failure modes of optical encoders, and how inductive sensing eliminates them.
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Humanoid robots: the 54-encoder opportunity
Why every humanoid joint needs absolute, magnetic-immune feedback — and what that means for encoder suppliers in 2026.
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BISS-C vs SSI vs RS485: choosing the right encoder protocol
A practical comparison for servo and robotics engineers — speed, safety, ecosystem fit and when each protocol wins.
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Encoder Selection Guide: how to choose in 7 steps
Rotary or linear, absolute or incremental, resolution, protocol, environment and form factor — a practical framework for buyers and engineers.
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Servo motor encoders: BISS-C, RS485 and SSI explained
What a servo encoder must deliver, how the three interfaces compare, and how drop-in replacement programs work.
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IP67 encoders: what the rating really means
What IP67 guarantees (and doesn't), why sealing alone isn't enough, and the full environmental picture for industrial encoders.
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Robot joint encoders: why multi-turn absolute feedback matters
Gear ratios, power-off recovery and EMI inside the joint — the feedback chain behind collaborative and humanoid robots.
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Encoder drop-in replacement: qualify a second source without redesigning your drive
Pin-for-pin compatibility, Tamagawa RS485 and BISS-C, mechanical fit and the five-step test plan for second-sourcing.
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Linear encoders for machine tools and precision stages: a buyer's guide
Accuracy classes, glass vs magnetic vs inductive scales, cascade length and what to specify in your RFQ.
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Robotics Downloads
Robot components documentation
Official Ti5 Robot product overviews and our authorization certificate — everything you need to evaluate the robotics line.
Joint Modules — Product Overview
PRO / NH / KH series lineup, module architectures and encoder options for CRA-RI integrated joints.
Robot & Humanoid Platforms — Product Overview
T140, Booster T1, TL70A, collaborative arms and the bionic hand — platforms and reference solutions.
Official Authorization Certificate
Ti5 Robot brand sales authorization for Shanghai Luoyun Intelligent Technology Co., Ltd., valid May 2026 – May 2027.
Image Credits
Photography sources
All photography on this website is free for commercial use and sourced from Wikimedia Commons. Full credits and licenses are listed below.
| Photo | License | Source |
|---|---|---|
| Collaborative robot arm (UR16e, hero) | CC BY-SA 4.0 | Wikimedia Commons |
| Robots at Robot Dream Exhibition, Hong Kong | Public domain | Wikimedia Commons |
| Servo drive and motor | CC BY-SA 4.0 | Wikimedia Commons |
| Collaborative palletizer robot | CC BY-SA 4.0 | Wikimedia Commons |
| SMT electronics production line | CC BY-SA 3.0 | Wikimedia Commons |
| CNC machining center | CC BY-SA 4.0 | Wikimedia Commons |
| Macro circuit board | CC BY-SA 4.0 | Wikimedia Commons |
| CNC milling machine | CC BY-SA 4.0 | Wikimedia Commons |
| Wind turbine field | CC BY 2.0 | Wikimedia Commons |
| Solar panel array | CC BY 4.0 | Wikimedia Commons |
| Shanghai maglev | CC BY-SA 4.0 | Wikimedia Commons |
| Smart electricity meter | CC BY 4.0 | Wikimedia Commons |
| Electronics test laboratory | CC BY-SA 4.0 | Wikimedia Commons |
| Motor stator and rotor | CC0 | Wikimedia Commons |
| Engineer in laboratory | CC BY 4.0 | Wikimedia Commons |
| Ti5 Robot lightweight joint modules (PRO / NH / KH series) | © Ti5 Robot — official product images | ti5robot.com |
| Ti5 Robot joint module precision measurement | © Ti5 Robot — official product images | ti5robot.com |
| Ti5 Robot harmonic reducers | © Ti5 Robot — official product images | ti5robot.com |
| Shadow Hand dexterous robotic hand | CC BY-SA 3.0 | Wikimedia Commons |
| Servo motor (Tower Pro VTS-05A) | CC BY-SA 4.0 | Wikimedia Commons |
| Smart electricity meter (Aclara I-210+) | CC BY-SA 4.0 | Wikimedia Commons |
| Collaborative robots on a production line | CC BY-SA 4.0 | Wikimedia Commons |
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