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Home > Products > Surveying > Efficient CDJ Series Digital Seismic Geophones

Efficient CDJ Series Digital Seismic Geophones

FOB Price

USD $1 - $2 / Set

1 Set(Min.Order)

Supply Ability 100 Set / Sets per Month
Port Shanghai
Payment TermsT/T Credit Card

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Product Details

Place of Origin	Chongqing, China		Brand Name	GOLD
Model Number	CDJ

Product Description

Efficient CDJ Series Digital Seismic Geophones

Product Description

CDJ Series Digital Seismic Sensor (Geophone) are available frequencies from 1Hz to 100Hz vertical and horizontal direction, and geophone-consisted three-component geophones, borehole geophone, tomographic imaging geophone series with stable performance, high fidelity and consistent quality in oil, gas exploration and other fields.

1.APPLICATION & FEATURES

1~3Hz geophones applied for deep seismic prospecting, natural earthquake surveillance and prediction, pulse and microseismic measurement for bridge and highways, etc.
4~100 Hz widely used to seismic prospecting of petroleum, coal, metallurgy, defense engineering and etc.
High sensitivity, low-distortion, reasonable damping coefficient, good linear response, good parameter conformity, higher resolution and excellent waterproof property.
Small-sized, easy to install, easy to operate, large ambient temperature range, can meet the demand of multi-wave component seismic data acquisition technology

2.SPECIFICATION

Table 1

Medium–High Frequency (vertical and horizontal) Geophones

Parametertype name

CDJ-Z/P4

CDJZ/P4.5

CDJ-Z/P10

CDJ-Z/P15

CDJ—Z/P28

CDJ-Z/P30

CDJ—Z/P38

Natural Frequency (Hz)

4±10%

4.5±10%

10±5%

15±5%

28±5%

30±5%

38±5%

Sensitivity G
(v/cm.s-1)

0.28±5%

0.26±5%

Coil Resistance Rc(Ω)

365±5%

500±5%

650±5%

Internal Resistance
(Ω)

345±5%

335±5%

310±5%

415±5%

560±5%

Damping Coefficient Bt

0.7±10%

0.58±10%

0.62±10%

0.6±10%

Harmonic Distortion D

≤ 0.2

Insulating Resistance
Ri (MΩ)

≥ 20

Coil’S Maximum Displacement P-P(mm)

Suspension Mass( g )

13.2

12.8

8.6

7.9

Working Temperature
(℃)

— 40 ~ + 70

Weight ( g )

255

Table 2

Medium–High Frequency (vertical and horizontal) Geophones
Parametertype name	CDJ-Z/P40	CDJ-Z/P60	CDJ—Z/P80	CDJ—Z/P100
Natural Frequency (Hz)	40±5%	60±5%	80±5%	100±5%
Sensitivity G (v/cm.s-1)	0.26 ±5%	0.3 ±5%	0.25 ±5%	0.25 ±5%
Coil Resistance Rc(Ω)	690±5%	1030 ±5%	735 ±5%	1080 ±5%
Internal Resistance (Ω)	580 ±5%	800 ±5%	685 ±5%	1020 ±5%
Damping Coefficient Bt	0.6 ±10%	0.6 ±10%	0.55 ±10%	0.5 ±10%
Harmonic Distortion D	≤ 0.2
Insulating Resistance Ri (MΩ)	≥ 20
Coil’S Maximum Displacement P-P(mm)	2
Suspension Mass( g )	7.9	5.9	5.5	5.2
Working Temperature (℃)	— 40 ~ + 70
Weight ( g )	255

Table 3

Low-Frequency (vertical, horizontal and three-component ) Geophones
Parametertype name	CDJ-Z1/P1/S1			CDJ-Z1A/P1A/S1A
Natural Frequency (Hz)	1±10%
Coil Resistance Rc(Ω)	3400±10%			3500±10%
Open Circuit Sensitivity G (v/cm/s)	2±10%			6.7±10%
Closed Circuit Sensitivity (v/cm/s)	1.83±10%			6.4±10%
Internal Resistance R(Ω)	3100±10%			3300±10%
Open Circuit Damping Coefficient Bt	0.32±10%
Closed Circuit amping Coefficient	0.43±10%
Insulating Resistance Ri (MΩ)	≥ 10
Coil’S Maximum Displacement P-P (mm)	6
Suspension Mass ( g )	770
Working Temperature (℃)	—25 ~ +55
Weight (K g )	8.15	3.4	10	8.15	3.4	10

Table 4

Low-Frequency (vertical, horizontal and three-component ) Geophones
Parametertype name	CDJ—Z2A/P2A/S2A	CDJ-Z2B/P2B/S2B	CDJ-Z2C/P2C/S2S
Natural Frequency (Hz)	2±10%
Sensitivity G (v/cm.s-1)	1.2±10%	3.5±10%%	2±10%
Coil Resistance Rc(Ω)	1600±5%	13000±5%	6040±5%
Internal Resistance (Ω)	1540±5%	12800±5%	5800±5%
Damping Coefficient Bt	0.7±10%
Harmonic Distortion D	≤ 0.2
Insulating Resistance Ri (MΩ)	≥ 20
Coil’S Maximum Displacement P-P(mm)	3
Suspension Mass( g )	60
Working Temperature (℃)	—25 ~ +55
Geophone Element Weight (K g )	0.25

Table 5

Low-Frequency (vertical, horizontal and three-component ) Geophones
Parametertype name	CDJ—Z2.5A/P2.5A/S2.5A	CDJ-Z2.5B/P2.5B/S2.5C	CDJ-Z2.5C/P2.5C/S2.5S
Natural Frequency (Hz)	2.5±10%
Sensitivity G (v/cm.s-1)	1.2±10%	3.5±10%	2±10%
Coil Resistance Rc(Ω)	1600±5%	13000±5%	6040±5%
Internal Resistance (Ω)	1540±5%	12800±5%	5650±5%
Damping Coefficient Bt	0.7±10%
Harmonic Distortion D	≤ 0.2
Insulating Resistance Ri (MΩ)	≥ 20
Coil’S Maximum Displacement P-P(mm)	3
Suspension Mass( g )	60
Working Temperature (℃)	—25 ~ +55
Geophone Element Weight (K g )	0.25

Table 6

Low-Frequency (vertical, horizontal and three-component ) Geophones
Parametertype name	CDJ—Z3A/P3A/S3A	CDJ-Z3B/P3B/S3B	CDJ-Z3C/P3C/S3S
Natural Frequency (Hz)	3±10%
Sensitivity G (v/cm.s-1)	1.2±10%	3.5±10%	3±10%
Coil Resistance Rc(Ω)	1600±5%	13000±5%	6040±5%
Internal Resistance (Ω)	1540±5%	12800±5%	5650±5%
Damping Coefficient Bt	0.7±10%
Harmonic Distortion D	≤ 0.2
Insulating Resistance Ri (MΩ)	≥ 20
Coil’S Maximum Displacement P-P(mm)	3
Suspension Mass( g )	60
Working Temperature (℃)	—25 ~ +55
Geophone Element Weight (K g )	0.25

3.RELATED PRODUCTS

GSY-1 Engineering Acoustic Instrument

DZS-1 Deep Digital Seismograph

DZQ6B Engineering Seismograph (Surface Wave Instrument)

DZQ12/24/48 High Resolution Seismograph (Shallow-Layer Seismograph)

Richard Li

Skype:lzxbuktop

Tel.: 86-185-2384 6792

Fax.: 86-023-6294 0030

Chongqing GOLD mechanical & electrical equipment Co., Ltd.

Contact Us

Chongqing Huobo Surveying Instruments Co., Ltd.: Contact nameMichelle Li
Chat Now; Phone0086-023-62794421; AddressNo. 7-8, No. 23, Nanping West Road, Nanping Street