1. Vibration Table Body A11S24
1.1 Moving coil
The vibrating table is equipped with cast and manually machined
moving coils, optoelectronic load support system and dual bearing
axial guidance. Dual bearing guidance is a unique feature that
helps reduce dynamic axial crossing and rotation during vibration
testing for superior durability.
1.2 Excitation coil
Double magnetic circuit structure, low flux leakage, uniform
magnetic field.
1.3 body surface
Using advanced phosphating treatment and car paint technology, it
has long-term anti-wear and anti-rust effects.
1.4 Table refrigeration:
Adopt low-noise fans and improve the air intake structure of the
table body. The excitation coil adopts a honeycomb air duct, and
the middle magnetic ring adopts a double-layer shunt air duct. A
new air duct design is adopted to enhance the cooling effect.
2. LA Digital Switching Power Amplifier
LA series digital switching power amplifier adopts reliable MOSFET
or IGBT technology:
a. High stability and reliability
b. Meet the requirements of the EU "CE" standard
c. Using sinusoidal frequency multiplication pulse width modulation
technology, the signal-to-noise ratio of the power amplifier is
high.
d. Using the working principle of switching power supply, the
conversion efficiency is high.
e. Using electronic automatic current sharing technology
f. Good safety performance.
3. Servo protection system
Complete protection functions, including power grid overvoltage,
undervoltage, phase loss, logic fault, power module pass-through,
overtemperature, output overcurrent, output overvoltage, drive
power, platform over-displacement, platform temperature, external
interlocking, etc.
4. Vertical expansion platform
The extension platform is usually used as a platform for larger
mounting specimens, and can be square or round or user-defined. In
order to reduce the impact of the dynamic characteristics of the
extended platform, all the extended platforms must be modeled and
analyzed for their modal frequencies. These extension platforms are
typically cast from magnesium alloy and have damping material
attached.
5. Horizontal sliding platform
The horizontal slide design has a high overturning moment and
lateral restraint. This design concept, combined with a standard
horizontal slide arrangement, has a high dynamic moment limit while
maintaining the guiding oil film damping characteristics. The
horizontal slide table is composed of a slide plate, a connecting
head, a natural granite slab, a horizontal slide table base, and an
independent oil source.
6. Photoelectric automatic centering system
Automatically adjust the position of the moving coil to keep it in
a balanced state. An automatic centering system ensures that the
moving coil is always centered during loading and unloading.
7. Digital vibration controller
Vibration controller adopts advanced distributed structure system.
The closed-loop control is realized by the DSP processor, and the
PC is independent from the control loop. It ensures the real-time
and high efficiency of the control system. It can respond to any
changes in the test system in a timely and rapid manner. Ensure the
stability and high precision of the control. The hardware adopts a
32-bit floating-point DSP processor with a main frequency of up to
300MHz and an ADC/DAC with a 24-bit resolution. Low-noise design
technology with high-precision floating-point digital filtering and
hardware circuits. The controller randomly controls the dynamic
range to be greater than 90dB, and the signal-to-noise ratio is
greater than 100dB.
