Shanghai Jianhu JDZD-L Low-Frequency Vibration Test System

Overview

The Jianhu JDZD-L Low-Frequency Vibration Test System is an electromechanical shaker platform engineered for controlled sinusoidal vibration excitation in laboratory and production quality assurance environments. It operates on the principle of electromagnetic force generation: an input AC signal drives a voice-coil actuator suspended within a permanent magnetic field, producing precise linear motion at the test table. This system is optimized for low-to-mid frequency range validation (1–400 Hz), supporting fundamental mechanical stress screening—including transport simulation, structural resonance detection, and component durability assessment—under repeatable, traceable conditions. Unlike high-frequency piezoelectric exciters or broadband electrohydraulic shakers, the JDZD-L delivers stable displacement-based excitation with up to 5 mm peak-to-peak amplitude, making it particularly suitable for large-volume, medium-mass samples where displacement fidelity—not ultra-high acceleration—is the primary test requirement.

Key Features

• Electromagnetic shaker architecture with air-cooled 2.2 kW power amplifier and robust moving-coil transducer
• Fixed-frequency sine excitation mode with manual analog control of frequency (1–400 Hz), amplitude (0–5 mm p-p), and dwell time
• Vertical-only vibration orientation with rigidly mounted 50 cm × 50 cm aluminum test table (load capacity: 100 kg)
• Integrated digital frequency display and real-time output monitoring for operator verification
• Compliance-ready mechanical design: bolt-down base mounting, grounding terminals, and thermal overload protection
• No embedded software or PC interface—designed for standalone operation in regulated manufacturing floors where deterministic control and auditability are prioritized over automation

Sample Compatibility & Compliance

The JDZD-L accommodates rigidly mounted products up to 100 kg, including packaged electronics, automotive ECUs, industrial sensors, and consumer appliances. Its 5 mm p-p displacement envelope ensures sufficient stroke for simulating road transport, rail handling, and warehouse stacking vibrations without requiring hydraulic amplification. The system meets foundational mechanical shock and vibration test requirements outlined in GB/T 2423.10 (China national standard equivalent to IEC 60068-2-6), as well as baseline environmental stress screening protocols referenced in MIL-STD-810G Method 514.7 (vibration). While not certified to ISO 17025 or equipped with factory calibration certificates, its analog signal path and fixed-gain amplifier architecture support internal verification using traceable accelerometers and laser vibrometers per ASTM E1492 and ISO 5347-13.

Software & Data Management

The JDZD-L operates exclusively via front-panel analog controls and does not incorporate embedded firmware, USB/RS-232 interfaces, or data logging capability. All test parameters—including set frequency, amplitude, and duration—are manually adjusted and visually confirmed via LED display. This architecture eliminates software validation overhead and aligns with GMP-aligned facilities where electronic records must comply with FDA 21 CFR Part 11 or EU Annex 11. Users intending to document test execution may integrate external DAQ systems (e.g., National Instruments PXI chassis with IEPE-accelerometer inputs) for synchronized acceleration, displacement, and time-stamped waveform capture. No proprietary drivers or vendor-specific software licenses are required or supported.

Applications

• Pre-shipment vibration screening of finished goods per ISTA 2A and 3A protocols
• Resonance search and modal survey of enclosures, PCB assemblies, and heat sinks
• Functional endurance testing of switches, relays, and mechanical actuators under sustained low-frequency oscillation
• Calibration verification of seismic sensors and MEMS accelerometers (using known-input reference excitation)
• Education and training labs requiring cost-effective, maintenance-light shaker platforms for vibration fundamentals instruction
• Supplier qualification audits where standardized, non-programmable excitation profiles are mandated by OEM engineering specifications

FAQ

Is the JDZD-L compatible with PC-based control or data acquisition?
No—the system is purely analog and lacks digital communication ports. External DAQ hardware must be used for waveform recording.
What is the maximum payload for safe operation at 5 mm p-p amplitude?
At full stroke (5 mm p-p), the recommended maximum load is 75 kg to maintain mechanical linearity and avoid suspension bottoming.
Does the unit include calibration documentation or NIST-traceable certification?
No factory calibration certificate is supplied. Users must perform periodic verification using third-party metrology services.
Can horizontal vibration be achieved with this model?
The JDZD-L is configured for vertical excitation only. Horizontal or multi-axis testing requires mechanical reorientation or alternative models (e.g., JDZD-H or JDZD-LH).
What safety interlocks or emergency stop provisions are included?
It features a hardware-based emergency stop button wired directly to the amplifier’s power stage, compliant with IEC 60204-1 Category 0 shutdown requirements.