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“高精度LGT-20D10地震检波器产品”参数说明
| 存储量： | 3700个点 | 测量范围： | 20MV |
| 主机尺寸： | 直径25.4mm，高33mm | 型号： | LGT-20D10 |
“高精度LGT-20D10地震检波器产品”详细介绍
LGT-20D10检波器技术参数（20℃）
SPECIFICATIONS OF LGT-20D10 GEOPHONE ELEMENT
检波器型号
Geophone Type LGT-20D10
自然频率 Fn
Natural Frequency (Hz) 10 ± 5%
开路阻尼系数 Bo
Open Circuit Damping 0.30 ± 5%
闭路阻尼系数 Bo
Damping with 1000Ω shunt Resistance 0.70 ± 5%
灵敏度 G
Intrinsic Voltage Sensitivity
(V/m/s) 28 ± 5%
闭路灵敏度 G
Sensitivity with 1000Ω shunt Resistance (V/m/s) 20 ± 5%
线圈电阻 Rc
Coil Resistance (kΩ) 395 ± 5%
谐波失真 D
Harmonic Distortion (%) ＜ 0.2
典型假频（Hz）
Typical spurious frequency ≥ 250
线圈最大位移
Case to Coil Motion P-P (mm) 1.5
悬体质量M
Moving Mass (g) 11 ± 5%
最大倾角
Maintains Fn specifications to tilt angle 20°
芯体直径
Unit Diameter (mm) 25.4
芯体高度
Unit Height (mm) 33.3
芯体质量
Unit Mass (g) 87
工作温度
Operating Temperature (℃) -40 ~ +90
质保期
Warranty（year） 3
SPECIFICATIONS OF LGT-20D10 GEOPHONE ELEMENT
检波器型号
Geophone Type LGT-20D10
自然频率 Fn
Natural Frequency (Hz) 10 ± 5%
开路阻尼系数 Bo
Open Circuit Damping 0.30 ± 5%
闭路阻尼系数 Bo
Damping with 1000Ω shunt Resistance 0.70 ± 5%
灵敏度 G
Intrinsic Voltage Sensitivity
(V/m/s) 28 ± 5%
闭路灵敏度 G
Sensitivity with 1000Ω shunt Resistance (V/m/s) 20 ± 5%
线圈电阻 Rc
Coil Resistance (kΩ) 395 ± 5%
谐波失真 D
Harmonic Distortion (%) ＜ 0.2
典型假频（Hz）
Typical spurious frequency ≥ 250
线圈最大位移
Case to Coil Motion P-P (mm) 1.5
悬体质量M
Moving Mass (g) 11 ± 5%
最大倾角
Maintains Fn specifications to tilt angle 20°
芯体直径
Unit Diameter (mm) 25.4
芯体高度
Unit Height (mm) 33.3
芯体质量
Unit Mass (g) 87
工作温度
Operating Temperature (℃) -40 ~ +90
质保期
Warranty（year） 3