Evaluation kit offers PCB application designers 2.6 million steps per revolution
Hot on the heels of a resolution performance record and a probing survey, Danish technology company, PCBMotor ApS, are giving customers exactly what they asked for with their latest development in onboard piezo motors.
The High Resolution Twin Motor Kit promises electronic application designers resolution precision, greater design flexibility and full holding torque even in power-off mode.
Engineers and designers, requiring micro-positioning accuracy and precision, now have the opportunity to build and test applications with resolutions over 2.6 million µpulses per revolution.
Three key benefits of the High Resolution Twin Motor Kit
- High resolution with full holding torque in all positions also in power-off mode
- Customization options for size and design for example hollow shaft
- Lower bill of materials (BOM) by eliminating the need for gears lowers assembly costs
Based on the results of an online customer survey in March 2011, the company confirmed that the main focus for electronic applications requiring movement is high resolution accuracy and precision, greater design possibilities and improved inherent holding torque.
“It was exactly the feedback we were after and we knew immediately that we could deliver what our customers were asking for,” says Henrik Stæhr-Olsen, CEO of PCBMotor.
The Denmark-based company then set out to develop a kit to match these requirements. “We wanted come up with a rapid prototyping tool for building applications utilizing these features. The kit demonstrates the motor’s ultra-high resolution whilst maintaining its off-power holding torque feature,” explains Henrik Stæhr-Olsen.
Henrik adds, “On top of this, the new twin-motor kit is controlled by a single driver circuit, which saves space and is cheaper to produce.”
Read more about PCBMotor’s High Resolution Twin Motor Kit board, configuration details, price and availability.
If you’d like more information about this topic, or to schedule an interview with Henrik Stæhr-Olsen, please call +45 2087 5111 or contact us online.
Innovators in the field of PCB motors
Based in North Zealand, Denmark, PCBMotor’s patented technology integrates highly accurate motors mounted directly onto a printed circuit board. Their on-board innovation significantly reduces costs and introduces a host of new design possibilities while using standardized components and well-established assembly techniques. There are numerous applications that can utilize this technology, spanning the laser and optics, camera, medico, telecom, aviation/aerospace, as well as the robotics and instrumentation industries.
Behind PCBMotor’s patented technology
Technically speaking, the PCBMotor consists of two parts: (1) The stator, milled out of the PCB itself, holds the actuators and electrical connecting circuit (the PCB can also hold the driver) and (2) The rotor, pressed onto the surface of the stator, delivers the mechanical output.
A travelling wave is generated over the stator surface, acting as a flexible ring to produce elliptical motion on the rotor interface. The elliptical motion of the contact surface propels the rotor and the connected drive-shaft.
1 mm * 1 mm ceramic piezo components are mounted on the PCB. Operation depends on friction between the moving rotor and the stator, as well as the amplitude and the quality of the wave travelling on the stator. The rotor turns between 60 and 120 RPM with torque ranging from 1 Nmm to more than 70 Nmm depending on the stator’s diameter, the number of piezo components and the rotors design and material.