供应60Hz地震检波器 LGT-20D）

品牌: 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）

2