LGT-20D Seismic Geophone,LGT_specification/price/image

Product Detail
Company Profile

Instruction:

LGT-20D seismic Geophone is compatible with all field data acquisition systems. All operating parameters are confirmed with a proprietary computerized test system during the manufacturing process. This can help the customers to carry on the geological explore in any corner in the world and obtain the detail and correct geological data.

Features:

It features stable performance, high fidelity and consistent quality in conventional industrial of coal, Petroleum and natual gas exploration.LGT-20D geophones 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

*Longet Equipment Co., Ltd can customize different kind of seismic geophones to meet all the customer's various applications.

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.