High-Precision Sensing Solutions — Engineered for Motion Control

OTV Sensing designs and manufactures magnetic encoder rings, off-axis absolute encoders, and modular linear magnetic scales for robotics, servo motors, and industrial automation. ISO-certified factory with global delivery.

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OTV Sensing product development team working on precision magnetic encoder components, including ring design and testing

R&D, manufacturing, and testing — all under one roof

Trusted by Robotics & Automation Companies Worldwide

500K+

Encoder Rings Shipped

ISO 9001

Certified Factory

±0.05°

Positioning Accuracy

7 Days

Custom Sample Turnaround

OTV Sensing engineer performing accuracy testing on a magnetic encoder ring using precision measurement equipment

What We Make

From standard encoder targets to fully custom sensing modules — one partner, full traceability.

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Encoder Ring / Magnetic Target

1-track incremental & 2-track Nonius absolute encoder discs. Custom pole counts, radial or axial magnetization. Compatible with iC-Haus, RLS, and major encoder IC platforms.

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Sensor / Encoder Module

Hollow-shaft off-axis encoders, modular linear magnetic encoders (0.5 µm resolution), and absolute inductive encoders (15–22 bit). SSi, BiSS-C, RS-422, ABZ output.

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Hard Ferrite Rings & Components

Multi-pole hard ferrite magnet rings (-40°C to 250°C, low eddy current loss). Precision bushings, PIN pins & gears in high-strength POM, PTFE & PEEK.

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Why Engineers Choose OTV

Three reasons we win repeat business from industrial automation teams.

① Custom by Design, Not by Compromise

You specify the dimensions, pole count, pole width, magnetization pattern (radial or axial), and mounting features — we deliver custom encoder rings and modules that drop into your mechanical stack-up. In-house R&D covers magnetic materials, Hall-effect and inductive sensing, and wireless transmission — so we optimize across the full signal chain.

② Full-Chain Manufacturing, One Factory

SMT assembly, sensor packaging, calibration, and final testing — all under one roof. Vertical integration ensures batch-to-batch consistency, eliminates subcontractor handoffs, and lets us turn urgent custom orders in days rather than weeks.

③ 100% Tested Before It Leaves

Every magnetic ring, magnetic scale, and encoder module is individually tested for performance before shipment. We provide batch-level test reports with full traceability. No sampling — every unit is verified against its spec.

Featured Products

2-Track Nonius Absolute Encoder Disc

Absolute position sensing through Nonius principle. Compact form factor for robot joint modules. Compatible with iC-Haus IC-MU200, IC-MU150, and RLS magnetic encoders. See also: Rotary Magnetic Scale Nonius.

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Hard ferrite magnet bonded to a metal carrier, used as a precision encoder target

Multi-Pole Hard Ferrite Magnet Ring

Precision-ground sintered ferrite with high-pole-count magnetization. Superior magnetic field intensity and pole boundary definition vs. rubber magnet rings. -40°C to 250°C operating range with low eddy current loss. Ideal for high-resolution servo motors.

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Hollow Shaft Off-Axis Magnetic Encoder

Zero-backlash sleeve-mount (6–40 mm bore). ±0.1° accuracy, 50 g vibration resistance, contaminant-immune (dust/oil/grease). 1 mm ring thickness for ultra-compact robotic joints.

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OTV-INE series inductive encoder featuring ultra-thin, non-contact hollow-shaft design for robotics and medical applications

Absolute Inductive Encoder (OTV-INE Series)

Ultra-thin, non-contact inductive encoders with hollow-shaft design. Resolution: 15–22 bit, accuracy up to ±0.006°. Supports SSi, BiSS-C, RS-422/485, ABZ protocols. Max speed 8000 rpm, -30°C to +100°C operating range. Optimized for robotics, medical, and automation.

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