English Product Name
| Brand | OK Instruments |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Price | USD 14,000–42,000 (varies by model) |
| Load Capacity | 10–100 kg |
| Table Dimensions | 20×20 to 80×65 cm |
| Acceleration Range | 150–15,000 m/s² |
| Pulse Duration | 0.5–30 ms |
| Waveform Options | Half-sine, Trapezoidal, Post-peak Sawtooth |
| Power Supply | AC 380 V ±5%, 50/60 Hz, 3-phase 5-wire |
Overview
The OK-S Series Electromechanical Shock Test System is a precision-engineered, repeatable shock simulation platform designed for laboratory and industrial qualification testing of electronic components, aerospace subsystems, automotive modules, and packaged goods. It operates on the principle of controlled free-fall impact or spring-driven impulse generation, producing calibrated mechanical shock pulses with defined acceleration amplitude, duration, and waveform shape—enabling compliance verification against international shock test standards. Unlike pneumatic or hydraulic shock systems, this electromechanical architecture eliminates compressed air dependency and fluid maintenance while delivering high reproducibility across repeated shock events. The system generates standardized half-sine, trapezoidal, or post-peak sawtooth waveforms by adjusting drop height, spring compression, buffer pad material/thickness, and motor-driven lift speed—ensuring traceable pulse control per IEC 60068-2-27, MIL-STD-810H Method 516.8, GJB 150.18A, JIS C 0041, and ASTM D999.
Key Features
- DC motor-driven lifting mechanism with precision gear-reduction and roller-guided vertical motion ensures consistent impact velocity and minimal mechanical hysteresis.
- Integrated shock table with rigid aluminum alloy construction and reinforced base frame minimizes energy loss and secondary rebound—eliminating double-impact artifacts critical for high-fidelity waveform fidelity.
- Adjustable damping isolation mounts decouple the test system from facility foundations, reducing transmitted vibration to ≤5% of input energy—meeting ISO 10816-1 ambient vibration limits for adjacent instrumentation.
- Programmable pulse repetition frequency (0.1–60 Hz) via variable-speed DC motor control enables burst-mode and dwell-time testing per MIL-STD-810H Figure 516.8C-2.
- Interlocked safety enclosure with emergency stop circuitry, overload torque protection, and power-fail braking guarantees operator and equipment safety under abnormal conditions including voltage fluctuation, unintended actuation, or mechanical stall.
Sample Compatibility & Compliance
The OK-S series accommodates samples ranging from small PCB assemblies (mounted on 20×20 cm tables) to full automotive ECUs or avionics enclosures (up to 100 kg on 80×65 cm platforms). Mounting interfaces include T-slots, threaded inserts, and optional vacuum chucks for non-permanent fixation. All models are supplied with NIST-traceable calibration certificates for acceleration (via piezoelectric accelerometer), pulse duration, and velocity change (Δv). System compliance extends to regulatory frameworks requiring documented test integrity: IEC 61000-4-29 (electrostatic discharge immunity validation), FDA 21 CFR Part 11-compliant audit trails (when paired with optional data acquisition software), and GLP/GMP-aligned test record retention protocols.
Software & Data Management
Optional OK-TestControl™ software provides real-time waveform visualization, automated pass/fail evaluation against user-defined tolerance bands (±10% amplitude, ±15% duration), and export of time-domain data in CSV, MATLAB (.mat), and universal TDMS formats. The software supports multi-channel synchronized acquisition (acceleration, velocity, displacement) and includes built-in FFT analysis for resonance detection during pre-shock screening. Audit logs capture operator ID, timestamp, test parameters, calibration status, and environmental conditions—fully compliant with ISO/IEC 17025 clause 7.7 and FDA 21 CFR Part 11 requirements for electronic records and signatures.
Applications
- Qualification of printed circuit board solder joint integrity under transient acceleration loads.
- Validation of MEMS sensor packaging robustness prior to field deployment in UAVs or satellite subsystems.
- Drop-test simulation for consumer electronics packaging per ISTA 3A and ASTM D4169.
- Shock survivability assessment of medical device enclosures under transport and handling scenarios (ISO 13485 Annex A.3).
- Material fatigue threshold determination in polymer-based structural housings subjected to repetitive low-magnitude shocks.
FAQ
What shock waveforms does the OK-S system support?
The standard configuration delivers half-sine pulses; trapezoidal and post-peak sawtooth waveforms are available as factory-installed options with dedicated buffer hardware and control firmware.
Is third-party calibration included with delivery?
Yes—each unit ships with a NIST-traceable calibration certificate covering acceleration amplitude (±2% uncertainty), pulse width (±0.1 ms), and peak velocity (±1.5%). Annual recalibration services are offered globally through accredited partner labs.
Can the system be integrated into an existing test automation environment?
Absolutely—the OK-S series features Ethernet (TCP/IP) and RS-232 interfaces with SCPI-compatible command sets, enabling seamless integration with LabVIEW, Python-based test sequencers, or MES-level scheduling systems.
What is the maximum allowable sample height above the table surface?
For stable dynamic response and center-of-gravity alignment, the recommended maximum sample height is 30% of the table’s shortest dimension—e.g., ≤6 cm for the 20×20 cm table and ≤20 cm for the 80×65 cm table.
Does the system meet electromagnetic compatibility (EMC) requirements for lab environments?
Yes—OK-S models comply with EN 61326-1:2013 for laboratory equipment emissions and immunity, including conducted/radiated emissions (Class B), ESD (±8 kV contact), and surge immunity (2 kV line-to-earth).
