Inductive rotor position encoder – GEL SEK20

Properties

• Rotational speed: ≤ 100,000 min^-1 (r.p.m.)
• Accuracy: typ. < 0.5° electrical
• Latency: < 5 μs
• Operating temperature range: -40 °C to +125 °C
• Degree of protection: IP68
• Integrated signal processing
• Line driver for cable lengths up to 30 m
• Prepared for ASIL C and ASIL D (internal self-diagnosis)
• Rotor material: Conductive material ≥ 35 μm (PCB, aluminum, steel)

Advantages

• Can be integrated into all motor designs with high mounting tolerances
• Immediate angle output after switching on without any reference search routine
• High accuracy without calibration
• High reliability with regard to mechanical loads
• Initial sample or prototypes available short-term
• Price/performance better than a mass-produced resolver
• Magnet-free and not sensitive to magnetic fields
• Small dimensions, low moment of inertia
• Large axial and radial mounting tolerances
• Maintenance and wear-free thanks to the bearing-free design

Industry and automation

Servo drives and motor feedback:

• Rotor angle determination for Field-Oriented Control (FOC) (BLDC, PMSM, synchronous motors)
• Pole position detection for initial commutation

Robotics and handling:

• Joint angle feedback in robots and cobots
• Position feedback in AMRs and AGVs

Automotive and commercial vehicles

Electrical drives:

• Rotor angle determination in E-motors
• Sin/cos feedback for inverter circuits

Driving dynamics and vehicle control:

• Angle and position detection in auxiliary units
• Motor-side sensors for hybrid modules

E-bikes, e-scooters, light electric vehicles:

• Rotor position sensors in wheel hub motors

Commercial vehicles and agricultural machinery:

• Position feedback in hydraulic pumps and auxiliary drives
• Monitoring of conveyor units, worm gears, and drums

Railroad technology and transportation

Rail vehicles:

• Rotor position sensors in highly dynamic traction motors

Conveyor belt and cable car technology:

• Drive control on deflection pulleys
• Synchronous control of multi-engine cable car systems

Maritime applications

Ship propulsion systems:

• Rotor position feedback for electrical and hybrid ship propulsion systems

Auxiliary units:

• Input/output speed for pumps, compressors
• Slip control in mechanical couplings

Aviation and aerospace

Aircraft actuators and UAV drives:

• Rotor position sensors in BLDC/PMSM drives for flaps, undercarriages

Satellites and space robotics:

• Angle measurement in reaction wheels and solar array drives

Logistics and conveyor technology

Conveyor belts:

• Speed and control feedback in distribution centers
• Synchronization of transport paths

Automatic storage systems:

• Angle and position feedback for rack feeders

Crane and lifting systems:

• Position sensors for lifting gears and undercarriages
• Control of driving and rotary motions