Wireless high resolution encoder for rotary drives
- Precise Measurements for rotary angle, velocity, and acceleration powered by advanced sensing algorithms.
- Effortless Installation, seamlessly rotating with the shaft for easy setup.
- Robust Algorithms engineered to handle misalignments, cross-coupling, and eccentricity with ease.
Why ACCbit outperforms classical encoders
Classical encoders have two key limitations:
1. They provide a finite number of pulses per evolution.
- 2. The accuracy of pulse timing is highly dependent on your acquisition system.
- These limitations result in poor positional accuracy, which leads to significant errors when calculating velocity. Further derivations to obtain acceleration become nearly impossible as the errors compound.
Our Accbit sensor overcomes these challenges by utilizing virtual sensing algorithms and MEMS accelerometers. These accelerometers capture information about:
- - Gravity, which relates to angular position.
- - Centrifugal acceleration, which relates to angular velocity.
- - Tangential acceleration, which directly correlates to angular acceleration.
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This advanced approach enables us to deliver highly reliable estimations for angle, velocity, and acceleration, outperforming traditional encoders.
Last but not least, we can add that the ACCbit is more compact allowing you to integrate them in more tight locations.
Why Choose an ACCbit Sensor?
Accurately measuring angular displacement, velocity, and acceleration is vital for gaining deeper insights into your machine's performance. Here’s why:
- Angular Displacement: In flexible systems, angular displacement helps you determine deviations from the ideal kinematic behavior. In drivetrains, for example, shafts can deform at higher speeds and loads. Understanding when this happens is critical to pushing your drivetrain to its limits while avoiding performance loss.
- Angular Velocity: A precise estimate of angular velocity provides valuable insights into slipping behavior in belts or tires, which is a clear sign of wear and tear. Monitoring this allows for timely maintenance and performance optimization.
- Angular Acceleration: According to Newton’s laws, acceleration is directly linked to forces and loads. Sudden increases in load are immediately reflected in the acceleration signal, enabling you to quickly extract key features to monitor your machine. Additionally, acceleration data reveals torsional modes that can damage your drivetrain and lead to premature failure.
The ACCbit sensor delivers these critical measurements, helping you optimize performance, enhance reliability, and prevent costly breakdowns.
Choose precision, simplicity and convenience with our innovative sensor solution
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What the industry has to say about FORCEBIT
"The ease of installation really did surprise me. Though the selected location seemed very confined initially, the Accbit sensor was mounted on the shaft and ready for use within a minute."
FAQs
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Working Principle & Measurement Fundamentals
What is the working principle of the ACCbit sensor?
The ACCbit uses multiple MEMS accelerometers combined with advanced signal processing. By observing variations in gravity, centrifugal forces, and tangential acceleration in the rotating frame, it estimates angle, rotational velocity, and angular acceleration.
How is the ACCbit different from a classical encoder?
ACCbit mounts within minutes in a compact space under 2 cm, does not rely on pulse counts, and provides high‑resolution angle, speed, and acceleration estimates even at lower sampling rates. High‑speed encoders may achieve higher accuracy but at significantly higher cost.
Installation, Shaft Size & Modular Design
Does ACCbit work for a dedicated shaft size?
The sensor consists of two blocks connected by cable and a collar adapted to a specific shaft diameter. The sensor blocks cover a broader diameter range, while collars are interchangeable with TELbit collars.
Is the design modular?
Yes. Each sensor works within a 30 mm diameter variation and comes with one collar. Additional collars can be purchased separately.
Is there any risk that the sensor flies off?
No, not when installed correctly. The design withstands much higher speeds than the specified range. Nevertheless, standard machine safety shielding remains mandatory.
Calibration, Performance & Speed Range
How do I calibrate the ACCbit?
A dedicated calibration mode estimates system parameters after performing any trajectory that includes sufficient acceleration within the operating speed range. Recalibration is required if the sensor is removed and reinstalled.
What is the speed range?
Speed range depends on shaft diameter. Because performance is continuously improving, users should contact us with their specific application for confirmed limits.
How many ACCbit sensors can I use concurrently?
You can use 2 sensors at 4 kHz or up to 4 sensors at 2 kHz.
Measurement Capabilities & Application Insights
What is the use of angular acceleration and displacement?
Angular acceleration is directly related to torsional loads, making it valuable for order tracking, torsional resonance analysis, and drivetrain diagnostics. Displacement enables angle‑dependent analysis and feature extraction.
Does ACCbit work for vertical shafts?
Vertical shafts do not allow angle estimation because gravity‑based information disappears. Arbitrary angles are supported as long as gravity produces a measurable component, and calibration compensates for orientation.
What is the IP rating of the ACCbit sensor?
The sensor housing provides an IP64 rating, offering dust‑tight protection and resistance to splashing water. High‑pressure water jets are not recommended.
Still have questions?
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