Product introduction of the vibration table
Product application
Vibration test is about motivating or hitting a component or device to see how it reacts in a real environment. The vibration test has a wide range of applications, from circuit boards, aircraft, ships, rockets, missiles, automobiles and household appliances and other industrial products.
Van Code company can provide you with the whole shock and testing scheme, and prove the quality of the product for you according to national and international standards, such as GB, GJB, UL, JIS, DIN, ISO, BS, MIL, IEC and ASTM.
3. Machine selection formula and structure diagram of vibration generator
① The test conditions provided by your company;
② Test type: Sine sweep; Random;
③ Frequency sound range: 2-4000Hz
④ Formula: A (g) = (2 π f)2Dcm/980≒A=0.002DmmF2D=A/0.002F2
F=M(kg) ×A(g)
4. Block diagram of the system principle
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5. Device configuration description
| project | Configuration description | quantity |
| 1. | Vibration table body | |
| electromagnetic excitation generator | 1 | |
| cooling fan (including silencer) | 1 | |
| VT0606 vertical extension platform 600mm * 600mm | 1 | |
| HT0606 horizontal oil film slide table 600mm * 600mm | 1 | |
| 2. | Digital switch power amplifier | |
| power amplifier | 1 | |
| Servo protection system | 1 | |
| field power supply | 1 | |
| 3. | Digital vibration controller | |
| Digital Vibrator controller host | 1 | |
| System acceleration sensor | 1 | |
| control computer | 1 | |
| Control the software installation disc | 1 | |
| 4. | Random attachment | |
| Extend the cable line and the air duct | 1 | |
| Operation instructions, inspection report, qualification certificate, maintenance manual, etc | 1 | |
| Attached special tools | 1 | |
| Vibrating pressure bar / pressure bar fixture | 1 | |
| aseismic airbag | 4 |
VI. Technical parameters
| ES-3 electromagnetic excitation generator parameters | |
| maximum sine force | 300Kg.f peak |
| Maximum random force | 300Kg.f r.ms |
| Maximum shock shock force | 600Kg.f peak |
| frequency range | 1～3500 Hz |
| maximum displacement | 24mm p-p |
| maximum speed | 1.6m/s |
| maximal acceleration | 100G(980 m/s2) |
| maximum load | 100 kg |
| The vibration isolation frequency | 2.5 Hz |
| The diameter of the moving circle | Ф 150 mm |
| Dynamic circle quality | 3kg |
| Mesa screw | 13×M8 |
| magnetic leakage | ＜10gauss |
| Table size | 750mm 560mm 670mm (vertical table) |
| Table weight | About 560 Kg |
| The ES-3 digital switch power amplifier | |
| output power | 4KVA |
| output voltage: | 110V |
| output: | 30A |
| Power size | 720mm×545mm×1270mm |
| weight | 230KG |
| Servo protection system | |
| function: | Temperature, wind pressure, over displacement, over voltage, over current, input undervoltage, external fault, control power supply, logic fault, input deficiency, etc |
| Digital vibration controller VCSusb-2 | |
| hardware configuration: |
2-channel input, and 1 output channel Sine, random Typical Impact, Resonant Training and Residence (buy) |
| control computer | Original brand computer, LCD display (including keyboard / photoelectric mouse) |
| software | Chinese / English operation, can conduct time domain and frequency domain analysis, signal source, sine sweep analysis, etc. WORD test report, signal and data display, storage, setting test parameters and analysis functions. |
| operating system | Windows 10 |
| Acceleration sensor, LAB24112 |
Frequency range: 1- -12,000 Hz Sensitivity: 50 mv / g Temperature range: -24-250℃ |
| V T 0606 Vertical extension platform | |
| material quality | alufer |
| Mesa size | 600 mm×600 mm |
| Fixed hole position | M8 stainless steel screw sleeve, long-term wear resistance |
| Upper limit usage frequency |
Sinusoid 1000 HZ stochastic 2000HZ |
| weight | 35KG |
| H T0606 Horizontal oil film slide stage | |
| material quality | alufer |
| Mesa size | 600 mm×600mm |
| Fixed hole position | M8 stainless steel screw sleeve, long-term wear resistance |
| Upper limit usage frequency |
Sinusoid 800 HZ stochastic 2000HZ |
| weight | 35 |
| BL-300 cooling fan (including elimination speaker) | |
| Fan power: | 1.1 K W |
| rate of flow | 1404m3/h |
| electrical requirement: | |
| source | 3-phase 380V / 50Hz, 15 KVA |
| earthing resistance | ≤4Ω |
Vii. Equipment Performance Introduction:
7.1, vibration table body VG 300-38
7.1.1. Moving coil
The vibration table is equipped with cast and manually machined moving coil, photoelectric pneumatic load support system and dual bearing axial guidance. Dual bearing guidance is a unique function that helps to reduce axial dynamic crossing and rotation during vibration testing, with superior durability.
7.1.2. Excitation coil
Dual magnetic path structure, low magnetic leakage and uniform magnetic field
7.1.3. Platform Surface
Using advanced phosphorization treatment and automobile paint technology, with long-term wear and rust prevention effect.
7.1.4. Taiwan system is cold:
The low noise fan is adopted to improve the air inlet structure of the platform, the excitation coil adopts honeycomb air duct, the middle magnetic ring adopts double layer shunt air duct, etc. The new air duct design is adopted to enhance the cooling effect.
7.2. SA digital switch power amplifier
SA series digital switch power amplifier with reliable MOSFET or IGBT technology,
a. High stability and reliability
b. Compliance with the EU "CE" standard requirements
c. Using sinusoidal frequency pulse width modulation technology with high power amplifier.
d. Using the working principle of switching power supply, the conversion efficiency is high.
e. Electronic automatic flow-sharing technology is used
f. Good safety performance.
7.3. Servo protection system
The protection functions are complete, including over voltage, under voltage, phase deficiency, logic failure, power module through, over temperature, output over current, output over voltage, drive power supply, body over displacement, body temperature, external linkage, etc
7.4. Vertical expansion platform
The expansion platform is usually used as a larger installation specimen platform, which can be square or round or user custom. In order to reduce the dynamic characteristics of the extended platforms, all the extended platforms must be analyzed by modeling
7.5. Photoelectric automatic matching system
Automatically adjust the moving coil position to remain at equilibrium. The automatic alignment system ensures that the moving coil is always centered during loading and unloading.
7.6. Horizontal sliding platform
The horizontal slide table design has a high overturning moment and lateral limitation. This design concept, combined with the standard horizontal slide table device, has a high dynamic torque limit, while maintaining the guide oil film damping characteristics. The horizontal platform is composed of skateboard, connector, natural granite plate, horizontal slide base and independent oil source.
eight. Introduction of the digital vibration controller
The vibration controller adopts the advanced distributed structure system, and the closed-loop control is realized by the DSP processor. The PC is independent of the control ring, which ensures the real-time and high efficiency of the control system, can timely and quickly respond to any change of the test system, and ensure the stability and high precision of the control. The hardware adopts 32-bit floating point DSP processor with main frequency up to 300 MHz, ADC / DAC with 24-bit resolution, high-precision floating point digital filtering and low noise design technology of hardware circuit, the controller randomly controls the dynamic range is more than 90dB and the signal-to-noise ratio is more than 100dB.
7.1. Features of the vibration controller:
A. High performance and reliability
The closed-loop control is realized by the DSP processor. The PC is independent of the control ring, ensuring the real-time and high efficiency of the control system, timely and rapid response to any change in the test system, and ensuring the reliability and high precision of the control. All input channels have a 24-bit resolution ADC, low-noise hardware design, and built-in analog and digital anti-aliasing filters, effectively ensuring the high accuracy of the analysis.
b. Simple operation
The application software based on Windows is easy to operate and has rich auxiliary functions. The system's powerful automatic wizard and test report automatic generation function make repetitive and boring test tasks easier. The test parameters are rich and rigorous, and the USB2.0 interface makes it connected to the computer more closely and harmonious.
C, powerful features and flexibility
Vibration Controller A powerful vibration control platform that can complete multiple complex tasks. On the same hardware platform, the different application software configuration, can complete a variety of analysis tasks, to meet your different test analysis needs. The controller adopts the modular design, which can configure the corresponding hardware and software according to different user needs to meet the different needs of users.
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