The STD-37 Absolute Optical Position Sensor from Statum Motion delivers high-resolution absolute position feedback for robotics, industrial automation, medical devices, semiconductor equipment, and precision motion control. Powered by Statum’s proprietary Duplus™ technology, it combines dual optical sensing heads with advanced signal processing to provide exceptional accuracy, built-in redundancy, and reliable performance in a remarkably compact design.
With a profile of only 8 mm, the STD-37 is ideal for space-constrained applications where precision and reliability are essential. Unlike conventional encoders, its contactless reflective optical sensing eliminates mechanical wear, extending service life while maintaining consistent performance over time.
The encoder delivers 18 to 22-bit absolute resolution with an impressive ±4 millidegree (mdeg) accuracy and ±1 count repeatability, ensuring highly accurate position measurement. In addition, its 20 µs data latency and maximum rotational speed of 5,000 RPM provide fast, real-time feedback for demanding closed-loop motion control systems.
Installation is both quick and flexible thanks to generous mechanical tolerances of ±0.4 mm radial runout and a 1.75 ± 0.5 mm air gap. Furthermore, every sensor is factory calibrated for off-axis performance, eliminating complex alignment procedures. Engineers can also configure the zero position, rotation direction, and other operating parameters using Statum Studio software.
Supporting both SSI and BiSS-C communication protocols, the STD-37 integrates easily with modern PLCs, servo drives, and motion controllers. Its operating temperature range of -40°C to +105°C makes it suitable for demanding industrial and outdoor environments.
Key Features
- Absolute optical position sensor
- Proprietary Duplus™ dual optical sensing technology
- Compact 8 mm profile
- 18 to 22-bit absolute resolution
- Accuracy: ±4 mdeg
- Repeatability: ±1 count
- Contactless reflective optical sensing
- Factory calibrated for off-axis installation
- Configurable zero position and rotation direction
- Interfaces: SSI and BiSS-C
- Data latency: 20 µs
- Maximum rotational speed: 5,000 RPM
- Operating temperature: -40°C to +105°C
- Lightweight design: 20 g
- Protection rating: IP40
Technical Specifications
| Feature | Specification |
|---|---|
| Technology | Contactless Reflective Optical |
| Resolution | 18–22 bit |
| Accuracy (INL) | ±4 mdeg |
| Repeatability | ±1 count |
| Interfaces | SSI, BiSS-C |
| Supply Voltage | 5 VDC ±5% |
| Data Latency | 20 µs |
| Maximum Speed | 5,000 RPM |
| Operating Temperature | -40°C to +105°C |
| Protection | IP40 |
| Weight | 20 g |
Applications
The STD-37 is ideal for:
- Industrial robotics
- Collaborative robots (cobots)
- Servo motors
- Medical equipment
- Semiconductor manufacturing
- Precision positioning systems
- Industrial automation
- Optical inspection equipment
- Aerospace systems
- High-performance motion control
Compact Absolute Position Sensing with Exceptional Accuracy
The STD-37 Absolute Optical Position Sensor combines 22-bit resolution, contactless optical sensing, and Duplus™ dual-sensor technology to deliver outstanding positioning accuracy in a compact package. With factory calibration, generous installation tolerances, and fast SSI and BiSS-C communication, it is an ideal solution for next-generation robotics, automation, and precision motion control systems.