Labtone Test Equipment Co., Ltd
Vibration and Shock Test Equipment for over 20 years
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Specifications
| Model | DT020 | DT030 | DT050 |
| Drop Height(mm) | 0~1200 | 0~1200 | 0~1200 |
| Payload Capacity(kg) | 200 | 300 | 500 |
| Package Size(mm) | 1700*1500*1200 | 1900*1500*1200 | 1900*1500*1200 |
| Drop Mode | Free Fall Drop | ||
| Machine Size(mm) | 2100*1700*2800 | 2100*1700*2800 | 2100*1700*2800 |
| Machine Weight(kg) | 2350 | 2500 | 3200 |
| Power/Air Supply | 3-phase AC380V 50Hz (Compressed Air) 0.5~0.7Mpa | ||
| Applicable Standards | ISO2248-72(E) GB/T4857.5 JISZ0202-87 IEC68-2-27 | ||
Operating Principle
The machine will move the drop platen which carrying the package under test to the set height, then freely fall the package at flat, edge and corner position. During test, the platen will drop at large than 1G acceleration to ensure the package performs free fall condition.
Equipment Configuration
| No. | Equipment name | Model | Qty. | Description |
| 1 | Drop tester | DT030 | 1 set | |
| 2 | Pneumatic–hydraulic pressure cylinder | 1 pcs | ||
| 2 | Controller | 1 set | ||
| 3 | Edge and Corner Auxiliary Fixture | 1 set | ||
| 4 | Connection cable | 1 set |
FAQ:
1. How to you attach the hardware you're testing to your shaker?
By means of a fixture, usually aluminium or magnesium for lightness coupled with rigidity. They can be cast, or smaller fixtures machined from solid stock. Most fixtures are welded.
2. How do you control shakers?
If we're looking for resonances in the product we're testing, we command the shaker to shake the product at one frequency at a time but to vary that test frequency, to sweep it over a range of frequencies. But more realistically, we command the shaker to vibrate randomly and to excite all the resonances simultaneously. Control commands go into the keyboard of a specially programmed computer.
3. What are those resonances? Are they bad?
Have you ever noticed the steering wheel moving with rather a large displacement amplitude, larger than the input to the column? That magnification is called resonance. Possibly it annoys you. There's a slight chance that in a few years that whipping of the steering column might cause bending fatigue failure. When we shake an automotive or ship orland vehicle instrument, we're looking for, for example, portions of printed wiring boards (PWBs) responding with greater motion than we're inputting. That flexing may damage PWB wiring, it may damage the attached components and the PWB.
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