- Alternative Energy Generators[1]
- Solar Cells[3]
- Briefcases[6]
- Switching Power Supply[4]
- Level Measuring Instruments[1]
- Gauges[2]
- Sensors[9]
- Other Measuring & Gauging Tools[1]
- Testing Equipment[1]
- Digital Voice Recorders[1]
- Other Electronic Measuring Instruments[1]
- Other Analysis Instruments[1]
- Software[1]
- Alarm[1]
- Air-Compressor Parts[1]
- Uninterrupted Power Supply (UPS)[1]
- Nuts[2]
- Screws[10]
- Cast & Forged[1]
- Springs[1]
- Pipe Fittings[1]
- Bolts[1]
- Magnetic Materials[1]
- Contact Person : Mr. Lei Brian
- Company Name : Xi'an Space Star Technology (Group) Corporation
- Tel : 0086-029-85339307
- Fax : 0086-029-85254498
- Address : Shaanxi,Xi'an,No.493,Chang-An-Nan Road, Space Building
- Country/Region : China
- Zip : 710061
Underwater Vibration Transducers SD78, SD79
Detailed Product Description
Destination:
- Measuring of vibration and shock accelerations of objects being under high humidity conditions or under water at depth of up to 50 meters.
Features:
- Piezoelement operation shear circuit.
- Combination of small overall dimensions and acceptable sensitivity.
- Strong structure and hermetically sealed body.
- Stability of characteristics and operational reliability.
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Parameter | Unit | SD78 | SD79 |
Axial sensitivity (± 20 %) | pC/g*1 | 10 | 2 |
Relative transverse sensitivity | % | < 3 | < 5 |
Amplitude range | g*1 | ± 5 000 | ± 2 500 |
Max.shock limit (peak value) | g*1 | ± 10 000 | ± 5 000 |
Operating temperature range | °C | - 60+ 150 | |
Frequency range (ripple ± 1dB) | Hz | 0.515 000 | |
Self-resonant frequency in attached condition | kHz | > 45 | > 50 |
Strain sensitivity | g·m/µm | < 0.005 | < 0.000 5 |
Capacitance | pF | 1 000 | |
Insulation resistance in normal conditions | > 10 000 | ||
Maximum pressure (equivalent depth 50 m) | Pa | 5·105 | |
Piezoelectric material | - | 19 | |
Design | - | Shear | |
Bottom insulation | - | no | |
Built-in cable length | m | 2*2 | |
Housing material | - | titanium alloy | |
Weight (without connector and cable) | gram | 10 (13) | 6 (9) |
Suplied accessories | - | stud | screw 3×20, |
General view of SD78 |
| General view of SD79 | |||
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Electrical circuit of |
| Electrical circuit of | |||
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Additional order accessories:
- calibrators ;
- charge amplifiers , ;
- measuring amplifiers ;
- adapter box (in set with charge amplifier );
- cables ;
- connector adapters ;
- wax for mounting ;
- magnet mounting bases ;
- stud ;
- insulating stud .
*1 - 1g = 9.807 m·s-2 or 10 m·s-2 = 1.02 g;
*2 - to be determined when making out an order.
