SJ-5 detector core
The geophone core is the core sensing unit for seismic signal acquisition, using a five-layer composite structure design.
Keywords：
- Product Description
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Core Component Architecture
The geophone core is the core sensing unit for seismic signal acquisition, using a five-layer composite structure design:
Inertial mass block: Tungsten alloy material (density 19.25g/cm³)
Suspension system: Double helical spring (stiffness coefficient 5N/m±2%)
Electromagnetic conversion component: Neodymium iron boron magnetic circuit (magnetic flux 0.8T)
Damping system: Temperature compensated silicone oil (viscosity 2500cSt)
Base platform: Zero expansion ceramic (CTE＜0.05×10⁻⁶/℃)
Technical Innovation
Intelligent Temperature Compensation System
Built-in PT1000 temperature sensor
Digital compensation algorithm (correction accuracy ±0.5%)
Thermal response time constant ＜30s
Multi-parameter Fusion Detection
Integrated triaxial accelerometer (±2g)
Real-time impedance monitoring (0.1Ω resolution)
Vibration phase detection (±0.5° accuracy)
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