When testing filter transmission performance, mechanical vibration can disrupt the stability of the transmitted light signal through optical path deviation, light source fluctuation, or sample displacement, thereby affecting measurement accuracy. The fully automatic filter transmission test machine utilizes a multi-dimensional design to mitigate the effects of vibration. Core strategies include structural optimization, vibration isolation systems, dynamic balancing, active control, and environmental adaptability.
Optimizing mechanical structural rigidity is fundamental to suppressing vibration transmission. The fully automatic filter transmission test machine utilizes a high-strength alloy frame and an integrated casting process to minimize gaps and deformation at component joints. For example, the optical path bracket and sample stage are integrated into a single piece to eliminate assembly errors, while honeycomb-shaped reinforcement ribs enhance overall rigidity. This design rapidly attenuates vibration during transmission due to increased structural impedance, preventing vibration energy from being transferred to the optical path system.
The vibration isolation system utilizes multi-stage buffering to isolate external vibration sources. A composite vibration isolator is installed at the bottom of the fully automatic filter transmission test machine, combining air springs and viscous dampers to provide dual-channel isolation for low- and high-frequency vibrations. The air springs provide vertical low-frequency vibration isolation, while the dampers dissipate high-frequency vibration energy. In addition, the optical module utilizes an independent suspension bracket, decoupled from the main unit via an elastic coupling, further blocking vibration transmission paths.
Dynamic balancing technology eliminates inertial excitation of rotating components. The fully automatic filter transmission test machine's rotating components, such as the light source fan and motor, undergo precise dynamic balancing calibration to ensure residual imbalance is below the permissible threshold. During calibration, radial runout of the rotating shaft is measured using a laser alignment tool, and dynamic balancing is achieved through counterweight adjustment. This process prevents periodic vibration caused by component eccentricity.
Active vibration control technology counteracts vibration interference through real-time monitoring and feedback. The fully automatic filter transmission test machine integrates accelerometers in key locations (such as the light source and detector) to continuously collect vibration signals and transmit them to the control system. The system uses an algorithm to analyze vibration frequency and amplitude, driving piezoelectric ceramic actuators to generate counter-vibration, creating a closed-loop control system. For example, when 100Hz vibration is detected, the actuators synchronously output compensation signals with opposite phases to maintain a stable transmission light path.
The rigid fixation and precise guidance design of the optical path system minimize vibration-induced beam spot deviation. The fully automatic filter transmission test machine utilizes high-precision linear guides and locking mechanisms to ensure the sample stage maintains accurate positioning even in vibrating environments. Components in the optical path, such as lenses and filters, are dually secured with elastic pressure plates and positioning pins to prevent component displacement caused by vibration. Furthermore, a light shield is placed between the light source and detector to prevent stray light from entering the detector due to vibration.
The environmentally adaptable design minimizes the impact of temperature and humidity fluctuations on the mechanical structure. The fully automatic filter transmission test machine's housing utilizes thermal insulation and a sealed structure to mitigate thermal expansion and contraction caused by external temperature and humidity fluctuations. Integrated temperature and humidity sensors automatically activate constant temperature and humidity control when environmental parameters exceed thresholds, ensuring dimensional stability of mechanical components. For example, when humidity exceeds 60%, a dehumidification module reduces air humidity to prevent the formation of a water film on the sample surface.
The fully automatic filter transmission test machine effectively minimizes the impact of mechanical vibration on the stability of the transmitted light signal through the integrated application of a rigid structure, vibration isolation system, dynamic balancing, active control, and environmentally adaptable design. These features not only improve measurement accuracy but also extend the device's service life, providing technical support for reliable evaluation of filter transmission performance.
