品牌: LGT颜色分类: 深灰色 绿色 蓝色 紫罗兰

Instruction
LGT seismic geophone element is designed to offer long service life in seismic exploration, its bandwidth is from 10 Hz to 190 Hz in 2D and 3D seismic exploration. and it can be installed in variety of LGT geophone cases.

Specifications
Type LGT-4.5
Natural Frequency (Hz) 4.5±10%
Open Circuit Damping 0.6 ±10%
Close Circuit Damping
Intrinsic Voltage Senditivity (V/cm/s) 0.288 ± 10%
Sensitivity with Shunt Resistance (V/cm/s)
Coil Resistance 375 ± 5%
Close Direct Current Resistance
Harmonic Distortion ≤0.3%
Typical Spurious Frequency ≥180
Moving Mass (g) 11.3
Coil Excursion P-P (mm) 4
Maintains Fn Specifications to Tilt Angle ≤10
Core Unit Diameter (mm) 25.4
Core Unit Height (mm) 36
Core Unit Mass (g) 74
Operating Temperature Range -40 to +90
Warranty (year) 1