LGT2108 Geophone String,LGT_specification/price/image

Product Detail
Company Profile

Instruction:

LGT2108 Geophone String consist of robust Land plastic case, one meter cable, takeout clip, which can receive the vertical vibration. LGT2108 can be mounted with 4.5hz seismic geophone to 100hz seismic geophone.*

Features:

It features stable performance, high fidelity and consistent quality in conventional industrial of coal, Petroleum and natual gas exploration. LGT2108 geophones strings are used in a various applications that are far removed from their original applications as earthquake detectors, engineering vabrations, perimeters defensing.

Suitable Seismic Geophones:

Type	LGT-20D4.5	LGT-20D10	LGT-20D14	LGT-20D28
Natural Frequency (Hz)	4.5 ± 0.5	10 ± 5%	14 ± 5%	28 ± 5%
Open Circuit Damping	0.6 ± 5%	0.3 ± 5%	0.22 ± 5%	0.27 ± 5%
Damping with Shunt Resistance		0.7 ± 5%	0.51 ± 5%	0.552 ± 5%
Intrinsic Voltage Sensitivity (V/cm/s)	0.288± 5%	0.28 ± 5%	0.28 ± 5%	0.39 ± 5%
Sensitivity with Shunt Resistance(V/cm/s)		0.2 ± 5%	0.2 ± 5%	0.28 ± 5%
Coil Resistance	375 ± 5%	395 ± 5%	395 ± 5%	395 ± 5%
Close Circuit Resistance (Ω)		283 ± 5%	283 ± 5%	283 ± 5%
Harmonic Distortion	≤0.6%	≤0.2%	≤0.2%	≤0.2%
Typical Spurious Frequency (Hz)	≥150	≥250	≥250	≥350
Moving Mass (g)	11.3	11	11	11
Coil Excursion P-P	4.0	1.5	1.5	1.5
Maintains Fn Specifications to Tilt Angle	≤10	≤20	≤20	90
Core Unit Diameter (mm)	25.4	25.4	25.4	27
Core Unit Height (mm)	36	33.5	33.5	33.5
Core Unit Mass (g)	81	87	87	100
Operating Temperature(℃)	-40 to +90	-40 to +90	-40 to +90	-40 to +90
Warranty (year)	1	3	3	3

Type	LGT-20D40	LGT-20D60	LGT-20D100
Natural Frequency(Hz)	40 ± 5%	60±5%	100 ± 5%
Open Circuit Damping	0.37 ± 5%	0.503±5%	0.464 ± 5%
Damping with Shunt Resistance	0.576 ± 5%	0.60±5%	0.65 ± 5% (1500 Ω)
Intrinsic Voltage Sensitivity(V/cm/s)	0.42 ± 5%	0.39±5%	0.612 ± 5%
Sensitivity with Shunt Resistance (V/cm/s)	0.304 ± 5% (1500)	0.27±5% (2000)	0.32 ± 5% (1500 Ω)
Close Circuit Resistance (Ω)
Coil Resistance (Ω)	575 ± 5%	668±5%	808± 5%
Distortion (%)	≤0.2	＜0.2	＜ 0.2
Typical Spurious Frequency (Hz)	≥400	≥550	≥ 600
Moving Mass (g)	8.2	6.5	7.6
Coil Excursion P-P (mm)	1.5	1.5	1.5
Maintains Fn Specifications to Tilt Angle	90	90°	90°
Core Unit Diameter (mm)	27	27	27
Core Unit Height (mm, )	33.5	33.5	33.5
Core Unit Mass (g)	100	98	98
Operating Temperature(℃)	-40 to +90	-40 to +90	-40 to +90
Warranty(year)	3	2	2

Baoding Longke Equipment Co., Ltd. can provide you with the most complete service and product line for liquid handling equipment (solenoid pump, diaphragm pump, piston pump, peristaltic pump and related equipment) and seismic exploration equipment (seismic geophone, geophone tester, digital cables, rig and related equipment). We have constructed a new warehouse, enlarged our shop areas, and increased our technical staff. These additional facilities and personnel have enabled us to achieve our reputation as a world supplier.