UNICORN LS-1200 active shock absorber | zero point fiveHz ultra-low frequency six degree of freedom vibration isolation | Maintenance free for large electron microscopes

UNICORN LS-1200 Active Seismic Stand

Special active isolation system for large electron microscopes | 0.5Hz ultra-low frequency isolation | Six degree of freedom active control | Modular ultra-thin design

0.5Hz

Isolation starting point (LFS mode)

99.8%

Maximum isolation rate

6自由度

Omnidirectional active control

No resonance

Piezoelectric sensing drive

LS-1200 It is designed specifically for electron microscopes and large precision instrumentsActive isolation systemReal time monitoring of environmental vibrations through piezoelectric sensors, generating reverse forces using a controller, and0.5Hz超低频Start actively offsetting the vibration interference of six degrees of freedom. The modular ultra-thin design can be directly embedded into the bottom of SEM/TEM without the need for lifting equipment for installation. Perfectly compatible with mainstream brand electron microscopes such as Zeiss, Leica, Hitachi, and NEC, it is an ideal isolation partner for laboratories.

五大核心优势

Ultra-low frequency isolation

After upgrading the LFS low-frequency sensor, the isolation starting point has been lowered to 0.5Hz, perfectly covering low-frequency interference sources such as environmental vibrations and personnel movements.

六

Six degree of freedom active control

Simultaneously canceling out X/Y/Z translational and rotational vibrations, with no low-frequency resonance peaks and extremely fast transient response.

fixed

Customized single electron microscope

Specially designed based on the weight distribution and installation position of each electron microscope to ensure optimal vibration isolation effect.

模

Modular installation free

Ultra thin modular design, no need for lifting equipment, and basically does not change the overall contour of the instrument.

免

Long term maintenance free

No compressed air, no mechanical wear parts, no need for regular calibration after installation, reducing operation and maintenance costs.

Standard version vs LFS low-frequency upgrade version

LS-1200 supports upgrading the LFS (Low Frequency Sensor) system, reducing the isolation starting point from 1Hz to 0.5Hz and significantly improving the isolation efficiency in the low frequency range.

comparison metrics	LS-1200 Standard Edition	LS-1200+LFS Upgraded Version
Isolation starting point	1 Hz	0.5 Hz
2.5Hz isolation rate	90%	95%
5Hz isolation rate	97%	99%
10Hz isolation rate	99%	99.5%
Maximum isolation rate	99.8% (@70Hz)	99.8% (@20Hz)

核心技术特性

Active+Passive Full Frequency IsolationThe active system provides precise compensation for low-frequency vibrations ranging from 0.5-200Hz; The passive system absorbs high-frequency vibration energy above 200Hz, covering the entire frequency range without blind spots.

No low-frequency resonance peakThe active damping resonance of the internal feedback loop eliminates the inherent low-frequency resonance peaks of traditional passive isolation tables and avoids amplifying vibrations at specific frequencies.

Adaptive feedforward controlReal time monitoring of foundation vibration signals, adaptive adjustment of feedforward compensation parameters, and adaptation to the vibration characteristics of different floors and environments.

典型应用领域

产品参数

parameter item	specification
Vibration isolation method	Active (piezoelectric sensor+driver)+passive
Control degrees of freedom	6 degrees of freedom (X/Y/Z/roll/pitch/yaw)
Isolation starting point (standard)	1 Hz
Vibration isolation starting point (LFS)	0.5 Hz
Maximum isolation rate	99.8% (@ 70Hz standard/@ 20Hz LFS)
resonant frequency	No (active damping elimination)
Active isolation range	1 - 200 Hz
Passive isolation range	≥ 200 Hz
Design features	Modular ultra-thin design, customized single electron microscope, maintenance free, no compressed air
For more parameters, please contact us for detailed specifications

客户评价

“

After installing LS-1200, the image drift phenomenon of field emission SEM completely disappears during high magnification imaging, and the resolution is significantly improved. Modular design can be installed in half a day without the need for laboratory renovation.

——FA Laboratory of a Semiconductor Wafer Factory

“

The building is located near the main road, and low-frequency vibrations are causing difficulties for TEM use. After upgrading the LFS system, the isolation starting point was reduced to 0.5Hz, and the lattice resolution test met the standard. The maintenance free feature is very worry free.

——Electron Microscopy Center of the School of Materials Science and Technology at a certain university

常见问题

What brands and models of electron microscopes is LS-1200 suitable for?

The LS-1200 adopts a design concept that is tailored specifically for each electron microscope, and is widely compatible with the full range of scanning electron microscopes (SEM) and transmission electron microscopes (TEM) from mainstream brands such as ZEISS, Leica, Hitachi, JEOL, Thermo Fisher/FEI, etc. Please provide the instrument model for consultation with the engineer to obtain the adaptation plan.

Why is active vibration isolation more effective than passive vibration isolation?

Passive isolation platforms (such as air flotation, rubber, etc.) have inherent low-frequency resonance peaks, which usually amplify vibrations within the range of 1-5Hz. LS-1200 actively generates reverse cancellation force through piezoelectric sensors and drivers, without low-frequency resonance peaks, providing effective isolation from 0.5Hz ultra-low frequency, fundamentally solving the problems of electron microscopy image drift and resolution degradation.

Do I need to renovate the laboratory to install LS-1200?

Usually not needed. LS-1200 modular ultra-thin design, directly placed under the original electron microscope bracket or embedded for installation. Most SEM can be installed without special lifting equipment, and the instrument profile is basically unchanged. It is quickly completed by professional engineers on site.

What are the benefits of upgrading LFS? Is it worth upgrading?

The LFS upgrade reduces the isolation starting point to 0.5Hz, significantly improving the isolation efficiency in the low frequency range of 2.5Hz-10Hz (from 97% to 99% in 5Hz). If the laboratory is located on a low floor, close to traffic arteries or large equipment, with severe low-frequency vibration, LFS upgrade can bring significant improvement in image quality. Existing equipment can be retrofitted and upgraded on-site.

Does LS-1200 require daily maintenance?

No need. Piezoelectric drive technology, no need for compressed air, no vulnerable parts such as oil or rubber. After installation and debugging, it is free of calibration and maintenance for a long time, greatly reducing the burden of laboratory operation and maintenance.