| Horizontal Line: | 2 |
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| Vertical Lines: | 2 |
| Usage: | Seismograph Detection Sensor |
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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.
Moreover, this product series has been used in the national 305 project conducted by IGGCAS, the national 863 project conducted by IGCEA as well as other projects by the land academy of ministry of land and resources. It obtained useful data information for the seismic monitoring in China.
1. 1~3Hz geophones applied for deep seismic prospecting, natural earthquake surveillance and prediction, pulse and microseismic measurement for bridge and highways, etc.
2. 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.
3. Small-sized, easy to install, easy to operate, large ambient temperature range, can meet the demand of multi-wave component seismic data acquisition technology,
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Type |
4.5 |
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Natural frequency(HZ) |
4.5±0.5 |
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Typical spurious frequency(HZ) |
≥140 |
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Coil resistance(Ω) |
375±5% |
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Open circuit damping |
0.56±8% |
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Open circuit sensitivity(v/m/s) |
28.8±5% |
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Distortion(%) |
0.3 |
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Moving mass(g) |
11.1 |
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Max. coil excursion P.P(mm) |
3 |
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Allowable tilt(°) |
0 |
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4.5Hz geophone element
All parameters are specified at +20° C in the vertical position unless otherwise stated.
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Frequency
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Natural Frequency (Fn)
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4.5Hz
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Tolerance
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±0.5Hz
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Spurious Frequency
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>120Hz
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Distortion
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Distortion
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< 0.2%
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Distortion at vertical
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< 0.2% measured at 12 Hz with 0.7 in/s p-p
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Damping
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Open Circuit Damping
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0.6
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Tolerance
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± 5%
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Coil Resistance
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Standard
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375ohm
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Tolerance
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± 5%
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Sensitivity
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Open Circuit Intrinsic Horizontal Sensitivity
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28.8 V/m/s (0.73 V/in/s)
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Tolerance
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±5%
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Physical Characteristics |
Moving Mass
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11 .1g (0.39 oz)
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Max. Coil Excursion p.p.
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4mm (0.16 in)
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Diameter
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25.4 mm (1.0 in)
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Height
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36mm (1.4 in)
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Weight
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81 g (2.86 oz)
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Operating Temperature Range
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- 40ºC - +90ºC
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Warranty excludes damage caused by high voltage and physical damage to the element case.
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT PRIOR
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Atech sensor co,. Ltd. specializes in sensor production and sales. The main products includes pressure sensor and transmitter, Level transmitter, water level sensor, pressure gauge, melt pressure transmitter, temperture sensor,pressure tranducer ,oil pressure sensor,Explosion proof pressure transducer, low-pressure transducer,Commerical Marine pressure transducer,Fuel pressure & Fuel tank pressure sensor,Liquid pressure sensor, ultrasonic level sensor, pressure sensensor chip, load cell,ect.
As manufacturer, based on technology innovation, good production capacity and strict quality control, we can meet different customers' OEM and ODM demands.
As a manufacturer and exporter, we provide the best products with our rich experience and perfessional technoloty for our customers.
1.Q: How long is the delivery?
-- Mostly within 10days
2.Q:Can I get a sample?
-- Sure, contact our sales please
3.Q:What is your MOQ?
-- 1pcs
4.Q: How about warranty time?
-- 12-18month
5.Q: How can I visit your factory?
-- Fly to Xian Yang air port, it's our pleasure to pick you up.
6.Q:How do you control your quality ?
-- We have EPR system .we control from parts, process, testing, packing ,retesting.
Every Sensor will be tested two times before reach you, after that sport test for the third time. Make sure about the quantity.
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