| Natural Frequency ( Hz ) | 5Hz ± 7.5% |
|---|---|
| Typical Spurious Frequency (Hz) | ≥130Hz |
| Distortion | ≤0.1% |
| Opening Circuit Damping | 0.6 ± 7.5% |
| Open Circuit Resistance (ohm) | 1850 ± 5% |
| Natural Frequency ( Hz ) | 4.5 ± 10% |
|---|---|
| Typical Spurious Frequency (Hz) | ≥90Hz |
| Distortion | ≤0.9% |
| Opening Circuit Damping | 0.6 ± 10% |
| Coil Resistance(ohm) | 3800 ± 5% |
| Working Direction | Vertical Or Horizontal |
|---|---|
| Nature Frequency Hz | 0.75±0.1 |
| Damping | 0.5±20% |
| Sensitivity（80 Hz）v/m/s | 650±10% |
| DC Resistance Ω | 33000±10% |
| Working Direction | Vertical Or Horizontal |
|---|---|
| Nature Frequency Hz | 0.75±0.1 |
| Damping | 0.5±20% |
| Sensitivity（80 Hz）v/m/s | 650±10% |
| DC Resistance Ω | 33000±10% |
| Natural Frequency ( Hz ) | 4.5±10% |
|---|---|
| Coil Resistance(Ω) | 375±5% |
| Damping | 0.6±5% |
| Open Circuit Intrinsic Voltage Sensitivity ( V/m/s ) | 28.8 V/m/s ±5% |
| Harmonic Distortion ( % ) | ≦0.2% |
| Natural Frequency ( Hz ) | 2 ±15% |
|---|---|
| Direction | Vertical |
| Coil Resistance/ Rc(Ω) | 6400 ±10% |
| Sensitivity ( V/m/s ) | 260V/m/s ±15% |
| Damping | 0.7 ±15% |
| Natural Frequency ( Hz ) | 2 ±15% |
|---|---|
| Direction | Vertical |
| Coil Resistance/ Rc(Ω) | 6400 ±10% |
| Sensitivity ( V/m/s ) | 260V/m/s ±15% |
| Damping | 0.7 ±15% |
| Natural Frequency ( Hz ) | 4.5 ± 10% |
|---|---|
| Typical Spurious Frequency (Hz) | ≥90Hz |
| Distortion | ≤0.9% |
| Opening Circuit Damping | 0.6 ± 10% |
| Coil Resistance(ohm) | 3800 ± 5% |
| Natural Frequency ( Hz ) | 2 ±15% |
|---|---|
| Direction | Horizontal |
| Coil Resistance/ Rc(Ω) | 6400 ±10% |
| Sensitivity ( V/m/s ) | 260V/m/s ±15% |
| Damping | 0.7 ±15% |
| Working Direction | Vertical Or Horizontal |
|---|---|
| Nature Frequency Hz | 1±10% |
| Damping | 0.36±20% |
| Sensitivity（80 Hz）v/m/s | 200±10% |
| DC Resistance Ω | 3300±10% |
