Name: Geophsical surveying instrument CDJ Series Digital Seismic Geophones
Brand: GOLD
Availability: InStock

Product Details

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.