供应60Hz地震检波器 LGT-20D)
*: LGT
LGT-20D60检波器技术参数(20℃)
SPECIFICATIONS OF LGT-20D60 GEOPHONE ELEMENT
检波器型号
Geophone Type
LGT-20D60
自然频率 Fn
Natural Frequency (Hz)
60 ± 5%
开路阻尼系数 Bo
Open Circuit Damping
0.457 ± 5%
闭路阻尼系数 Bo
Damping with 1500Ω shunt Resistance
0.6 ± 5%
灵敏度 G
Intrinsic Voltage Sensitivity
(V/m/s)
39 ± 5%
闭路灵敏度 G
Sensitivity with 1500Ω shunt Resistance (V/m/s)
27 ± 5%
线圈电阻 Rc
Coil Resistance (kΩ)
668 ± 5%
谐波失真 D
Harmonic Distortion (%)
< 0.2
典型假频(Hz)
Typical spurious frequency
≥ 400
线圈较大位移
Case to Coil Motion P-P (mm)
1.5
悬体质量M
Moving Mass (g)
6.5 ± 5%
较大倾角
Maintains Fn specifications to tilt angle
90°
芯体直径
Unit Diameter (mm)
27
芯体高度
Unit Height (mm)
33.3
芯体质量
Unit Mass (g)
98
工作温度
Operating Temperature (℃)
-40 ~ +90
质保期
Warranty(year)