Spectroscopic devices, which analyse light by its wavelength and intensity, are increasingly vital in many industries. From precise manufacturing processes and quality control on production lines to environmental assessments and cutting-edge medical diagnostics, the need for compact, yet highly accurate instruments continues to grow.
The Challenge: Compact Design Meets High Precision
A client specialising in embedded measurement technology recently encountered a significant challenge while upgrading their spectrometer for use in a space-limited production environment. Their engineering team had to reduce the instrument’s size without sacrificing the optical accuracy essential for reliable measurements. The major hurdle? The stepping motor controlling the diffraction grating, which measured 20mm square and was too large for the new design.
Innovative Engineering: Compact Yet Precise Motion Control
After exploring various suppliers, the client discovered that few stepping motors under 20mm square could deliver the required stability and step resolution. They eventually selected the 14mm square 2-phase hybrid stepping motor from SANYO DENKI AMERICA, which perfectly balanced size and performance needs.
Thanks to expedited delivery—arriving within two working days—the motor was immediately tested, allowing the client to stay on track with their prototyping and validation phases.
Results Achieved
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Reduction in size with a 14mm square stepping motor
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High resolution stepping to preserve measurement accuracy
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Time savings due to rapid delivery and straightforward integration
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Future scalability supported by a broad range of motor options
Conclusion
By adopting the 14mm square 2-phase hybrid stepping motor, the engineering team successfully miniaturised their spectrometer without losing optical precision or causing delays. This compact motor was key to maintaining the necessary wavelength resolution, enabling clean spectral separation in a smaller, more modern system suited for advanced manufacturing environments. This case highlights how careful component selection, rapid prototyping, and engineering expertise can ensure success in projects constrained by space yet demanding high performance.
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