The signal source through the vibration chamber is output to the power amplifier. After the signal is amplified, it is input into the vibrating table body to generate an excitation source. The vertical vibration test was carried out to simulate the actual situation of the specimen. The acceleration sensor signal is collected and inputted to the vibration control device. The output and feedback signals are superimposed and calculated. It can achieve a high overlap between the excitation source and the target spectrum. The signal target spectrum allows the system to complete the specimen’s vibration test. Test the specimen’s vibration durability and integrity.
System configuration of high-frequency vibration testing machine
According to user needs, the program uses an electric vibration test system to carry out the mechanical environment test and evaluate the reliability of the product.
Recommended system configuration:
① The test conditions provided by your company;
② Test type: Sine sweep; Random; Classic Shock;
③ Frequency response range: 1-2500Hz
④Formula: A(g)=(2πf)2Dcm/980≒A=0.002DmmF2 D=A/0.002F2
F=M(kg) ×A(g)
Detailed Specifications of XB-OTS-EV203 Vibration test machine
| A03S15 Parameters of electromagnetic excitation generator |
| Sine thrust |
300Kg.f peak |
| Random thrust |
300Kg.f r.ms |
| Impact thrust |
600Kg.f peak |
| Frequency Range |
1～4000 Hz |
| Continued displacement |
40 mm p-p |
| Maximum speed |
2m/s |
| Maximum acceleration： |
100G(980 m/s2) |
| Relationship between maximum load and acceleration: F=M.A |
| 5G (50 m/s2) |
10G (100 m/s2) |
20G (200 m/s2) |
30G (300 m/s2) |
| 114kg |
54kg |
24kg |
14kg |
| First-order resonance frequency: |
2600 Hz±5% |
| Maximum load: |
120 kg |
| Vibration isolation frequency: |
2.5 Hz |
| Moving coil diameter |
Ф150 mm |
| Dynamic weight: |
3kg |
| Magnetic flux leakage |
＜10gauss |
| Allowable eccentric moment |
500N.m |
| Equipment size |
780mm×570mm×670mm |
| Weight |
460kg(Excluding Horizontal expansion table) |
|
SA03K Digital switching power amplifier |
| Output Power: |
3KVA |
| The output voltage： |
120Vrms |
| Output current: |
30Arms |
| Amplifier efficiency |
Better than 90% |
| Signal to noise ratio: |
≥65dB |
| Amplifier size |
910mm×610mm×1150mm |
|
Servo protection system |
| Features: |
Temperature, wind pressure, over displacement, over voltage, over current, input under voltage, external fault, control power supply, logic fault, input missing and equal |
|
Digital vibration controller |
| Hardware Configuration: |
2 simultaneous input channels, 1 output channel |
| Control function module |
Sine, Random, Typical Shock |
| Control computer |
Original brand computer with LCD monitor |
| Software |
Chinese/English operation, time domain and frequency domain analysis, signal source, sine sweep frequency analysis, etc. can be performed. It can automatically generate WORD test report, display, store, set test parameters and analysis functions of signals and data. |
| System acceleration specifications |
Frequency range: 1—12000Hz
Sensitivity: 30PC/g
Temperature range: -40-180℃ |
| VT40 Vertical expansion table with auxiliary support system |
| Material quality: |
Aluminum/magnesium alloy, hard surface treatment |
| Table size |
400×400 mm |
| Fixed hole position |
M8 Rectangular distribution stainless steel threaded sleeve, durable and wear-resistant |
| Frequency limit |
2000 Hz |
| Weight |
14Kg |
|
H404 Horizontal slide |
| Material quality |
Aluminum/magnesium alloy |
| Table size |
400×400 mm |
| Fixed hole position |
M8 Rectangular distribution stainless steel threaded sleeve, durable and wear-resistant |
| Frequency limit |
2000HZ |
| Weight |
25kg |
|
B751D Cooling fan(with muffler) |
| Power |
0.75KW |
| Fan flow: |
11 m3/min |
| Fan size: |
500*630*850mm |
| Fan weight: |
45KG |
| Electrical requirements: |
| Power supply: |
AC3 Phases 380V/50Hz,75 KVA(Could be customized according to customers requirement) |
| Compressed air: |
0.6Mpa |
| Grounding resistance: |
≤4Ω |
Equipment breakdown Introduction
1. vibratory table
- moving coil
The shaking table is equipped with a moving coil for casting and manual processing, a photoelectric pneumatic load supporting system, and double-bearing axial orientation. Double-bearing steering is a unique function that helps reduce the axial dynamic cross and rotation in the vibration test process. It also has superior durability.
- excitation coil
A double magnetic circuit is adopted, magnetic flux is low, and magnetic field is uniform.
- the surface of the table
With advanced phosphating and automotive baking technology, it has a long-term anti-wear and rust-preventive function.
- table body refrigeration:
A low-noise fan is used to improve the air inlet structure of the platform. The excitation coil adopts a honeycomb air duct and a middle magnetic ring with a double channel shunt air duct. A new type of air duct is designed to enhance the cooling effect.
2. SA digital switch power amplifier
SA series digital switching power amplifier adopts reliable MOSFET or IGBT technology.
- has high stability and reliability
- meets the requirements of the EU “CE” standard
- uses sinusoidal frequency doubling PWM technology, and the power amplifier has a high SNR.
- uses switching power supply’s working principle and high conversion efficiency.
- using electronic automatic current sharing technology
- has good security performance.
3. Servo protection system
Its complete protection function has over-voltage, under-voltage, phase, logic fault, power module direct, over-temperature, over-current, output over-voltage, driving power, platform over-displacement, table temperature, external linkage, etc.
4. Vertical expansion platform
The extended platform is usually used for larger installation specimens, which can be square, circular, or user-defined. To reduce the dynamic characteristics of the extended platform, all extended platforms must analyze their modal frequencies by modeling. These expanded platforms are generally made of magnesium alloys and attached to damping materials.
5. horizontal sliding table
The design of the horizontal smoothing platform has a high overturning moment and lateral restriction. This design concept, combined with the standard horizontal sliding table device, has a high dynamic torque limit while maintaining the damping characteristics of the guided oil film. The smoothing table comprises a sliding plate, a connecting head, a natural granite slab, a horizontal sliding table base, and an independent oil source.
6. Photoelectric automatic middle system
Automatically adjust the position of the moving coil to keep it in balance. The automatic centering system ensures that the moving coil is always at the center of the loading and unloading process.
