Optical working plane supplied from Optic Illuminator Manufacturer,is a kind
of in addition to the vibration isolation platform, which USES its own inherent
frequency can effectively avoid the vibration produced by resonance phenomenon,
amplitude amplification control, reduce the vibration transmissibility,
eliminate the influence of environment vibration on using precision and wide
application of optics, laser scanning, laser interferometer and optical
manufacturing and other fields of scientific research and teaching, is suitable
for the holographic technology, spectrum experiment technology, precision
testing technology, modern optics, laser technology, integrated electronics,
medical, biological and engineering fields such as optical fiber.
1. Structure of optical platform
The outer frame of the optical vibration isolation platform is made of medium
carbon steel plate with strong rigidity, small deformation and good welding
performance. The vibration isolation layer is made of honeycomb structure
material with low natural frequency and strong vibration isolation, which can
control the response of vibration to the greatest extent. The surface is made of
stainless steel with high magnetic conductivity. Roughness 0.8~1.6 m, flatness
0.05~0.10mm/cm2.
(1) vibration isolation foundation part can be based on specific
requirements.
(2) adjusting support part: wear-resisting screw and flat thrust ball bearing
are adopted, which is easy and reliable in use.
(3) automatic balance system: air servo system is adopted to automatically
adjust the level. Its outstanding feature is that the response of the system to
micro-vibration is fed back into the system, the vibration isolation
characteristic is changed, the vibration isolation effect is improved, and the
initial equilibrium state is reached in an instant under the overloading and
heavy experimental conditions.
2. Formant suppression technology
During the operation of precision optical instruments, such as XYZ Optical
Rotating Stage,the mechanical vibration index is very high, but the vibration
environment of the carrier is very bad, so it puts forward higher requirements
for the supporting stabilization system. Optical vibration isolation platform
can effectively, in general, the attenuation of high frequency vibration (more
than 5 Hz), but if the application of the optical system environment is bad,
with high intensity low-frequency shake, passive vibration reduction at the same
time, the inherent defects of low frequency resonance amplifier will clearly
show, therefore, must take effective to control the formant of inhibiting
technology.
The air spring is provided with an additional air chamber to reduce the
vertical stiffness, and a throttle hole is provided between the air spring body
and the additional air chamber to provide damping. When the air spring is
excited and deformed, the pressure difference will be generated on both sides of
the throttle hole. The air spring has a small pressure difference in the slow
displacement process, but a large pressure difference in the rapid displacement
process. When the pressure air flows through the orifice, it will be damped by
local resistance and absorb part of the energy.
It is proved that the resonant amplification can be effectively suppressed by
changing the orifice size through the principle verification test. At the same
time, China Electric Lifting Platform supplier found that the vibration isolation capability of high frequency band
is affected. The weakening of high-frequency vibration isolation capability
mainly comes from the overall connection between the air spring and the attached
air chamber, which results in the small amount of gas generated by the weak
pressure difference generated by the high-frequency vibration flowing back and
forth between the air spring and the attached air chamber, resulting in damping
and affecting the high-frequency vibration isolation capability.
