Silicon Photonics Empowers, Compact Yet Precise – The New-Generation Fully Localized Miniature Laser Vibrometer

Overview

Upholding the concept of independent innovation, Sunnyinnovation Laser Technology has successfully launched the LV-M300, a new-generation high-performance miniaturized laser vibrometer. Built on independently developed silicon photonics chip technology, this product achieves full localization of core modules. While maintaining ultra-high measurement performance, it breaks through limitations in size and integration, providing a lightweight and cost-effective vibration measurement solution for industrial on-site applications, scientific research testing, and educational experiments.

Principle Introduction

Laser Emission and Beam Splitting

The coherent light emitted by the laser is split into two paths: a reference beam and a measurement beam.

Doppler Shift

The measurement beam irradiates the surface of the vibrating object, and the reflected light generates a Doppler shift due to the object's motion.

Shift Magnitude

Δf = 2v/λ (where ‘v’ is the vibration velocity and ‘λ’ is the laser wavelength)

Integrated Optics Processing

An integrated optical chip is used to realize functions such as light splitting, beam combining, and phase modulation, which greatly reduces the system volume.

Key Highlights of the Product

• Fully Localized Silicon Photonics Technology Platform: It adopts independently developed silicon photonics chips to achieve highly integrated optical path systems.
• Breakthroughs in Miniaturization and Portability：The entire device weighs only 800 g(l.76 bs) and features a compact size (177x96x52mm/(7.0×3.8×2.0 in)). It can be easily embedded or deployed in a mobile manner, significantly improving on-site testing efficiency and enabling precise measurement anytime, anywhere.
• Both High Sensitivity and Wide Frequency Response:Despite its compact body, the LV-M300 still maintains the consistent high-performance standards of Sunnyinnovation’s products, featuring pm-level resolution and MHz-level frequency response to ensure accurate and reliable measurement data.

• Ultra-High Cost-Effectiveness: While ensuring core performance, the M300 significantly optimizes costs through innovative design. It provides you with entry-level pricing and professional-grade experience, making it an ideal choice for the popularization of vibration measurement.

Typical Applications

• Scientific Research and Education: Mechanics teaching and vibration research in university laboratories and research institutes.
• Ultrasonic Field: Vibration characteristic measurement in fields such as ultrasonic scalpels, piezoelectric ceramics, and power ultrasound.
• Industrial On-Site Testing: Mechanical equipment condition monitoring, abnormal noise analysis (NVH), and on-line production line quality testing.
• Aerospace: Vibration analysis of micro actuators, blades, and composite materials.
• Automotive Electronics:Vibration testing of engine components, ECUs, and speakers.
• Precision Manufacturing: Vibration evaluation of semiconductor equipment, precision instruments, and micro-electromechanical systems (MEMS).

Technical data

Velocity output

The LV-M300 allows measuring the vibrating velocity up to ± 7 m/s (peak) with the velocity resolution range up to ± 0.1 μm/s (peak).

Displacement output

The LV-M300 allows measuring the vibrating displacement up to ± 0.5 m (peak) with the velocity resolution range up to 8 pm (peak).