Developing ultrasonic devices with maximum reliability
Safety is the top priority in medical technology. Consequently, complete documentation of the development stages is indispensable for producing good products and providing legal certainty. Laser vibrometers are therefore extremely important in the development and quality assessment of medical instruments, such as dental or surgical ultrasonic devices and imaging methods. The efficiency and safety of health care products, such as inhalators, respirators and toothbrushes, can all be improved by carrying out measurements with Polytec vibrometers. Laser vibrometers have also become indispensable for the development, inspection, calibration and certification of middle ear implants and implantable hearing aids.
Ultrasonic energy has to get to where it’s needed in medical devices. Polytec’s PSV Scanning Vibrometer quickly and clearly illustrates how energy is distributed by ultrasonic actuators and thus speeds up the development process. Localization of a particular operating frequency’s vibration nodes allows you to optimize the design and thereby reduce energy dissipation. Thanks to the high spatial resolution and measurement accuracy in the picometer range, high-frequency deflection shapes are quickly and reliably visualized too.
Laser vibrometry focusing on the small details
Characterize small and delicate structures in a non-contact way. Analyze vibration, acoustics and dynamics. Measure biomedical samples, electronics components and microstructures like MEMS by light, without mass-loading, and from DC up to the GHz range on a large bandwidth. Laser vibrometers focus on the small details, measuring deflection shapes for model validation. They assess the frequency response and determine resonance frequency, impulse response and Q factor. No matter how big or small – Polytec vibrometers measure it!
FE model validation of ultrasonic medical instruments
Laser vibrometry is the decisive key technology in the design and development of medical ultrasonic instruments. It is the ideal tool for verifying FE simulations – both for invasive and diagnostic medical ultrasonic instruments. Thanks to its linearity well into the high MHz range and the complete lack of feedback effects, coupled with high lateral resolution, this technology is suitable for nearly all structural dynamic tasks. Calculation methods derived from the basic technology for sound field visualization and for durability (strain / stress) open up further applications. Consequently, laser Doppler vibrometry is a tool suited to the development of efficient, reliable and effective instruments for the doctor and the researcher.
Related products
VibroScan QTec Xtra
VibroScan QTec Xtra measures vibrations in a new way - without contact, full-field and with unprecedented precision. With its groundbreaking multi-path interferometry, QTec® sets new standards in terms of optical sensitivity and interference immunity. The Xtra, based on an infrared (SWIR) laser is characterized by the highest optical sensitivity to guarantee highly accurate measurements even on demanding technical surfaces. VibroScan QTec Xtra ensures maximum portability through integrated data acquisition and signal generator up to 32 MHz.
MSA-650 IRIS Micro System Analyzer
The innovative and patented MSA-650 IRIS Micro System Analyzer with IR capability allows for measuring true MEMS dynamics up to 25 MHz by characterizing both in-plane and out-of-plane motions through silicon encapsulation without contact, without need for preparing nor decapping the device.
VibroFlex
With the modular laser vibrometer VibroFlex, Polytec presents the superior flexibility in optical vibration measurement with a modular sensor solution up to 24 MHz that adapts to your needs: Add microscope objectives for observing tiny structures or measure large samples like machinery or motors from a safe distance. Discover acoustics and vibration phenomena in research and product development for a faster time-to-market or use it for reliable in-line inspections. Learn about how the patented multi-path interferometry QTec® provides an always stable signal level, 20 dB better SNR for faster and clearer results without post-processing.
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