供应4.5Hz地震检波器 LGT-20D
*: LGT
LGT-20D4.5检波器技术参数(20℃)
SPECIFICATIONS OF LGT-20D4.5 GEOPHONE ELEMENT
检波器型号
Geophone Type
LGT-20D4.5
自然频率 Fn
Natural Frequency (Hz)
4.5 ± 0.5
开路阻尼系数 Bo
Open Circuit Damping
0.70 ± 10%
灵敏度 G
Intrinsic Voltage Sensitivity
(V/m/s)
23.4 ± 7.5%
线圈电阻 Rc
Coil Resistance (kΩ)
395 ± 5%
谐波失真 D
Harmonic Distortion (%)
≤ 0.3
典型假频(Hz)
Typical spurious frequency
≥160
线圈较大位移
Case to Coil Motion P-P (mm)
1.5
悬体质量M
Moving Mass (g)
11 ±5%
较大倾角
Maintains Fn specifications to tilt angle
10°
芯体直径
Unit Diameter (mm)
25.4
芯体高度
Unit Height (mm)
33
芯体质量
Unit Mass (g)
87
工作温度
Operating Temperature (℃)
-40 — +90
质保期
Warranty(year)