| Customization: | Available |
|---|---|
| Transport Package: | Carton or Plywood Case |
| Specification: | High integration, small size, light weight |
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STDR Self-contained hydrophone is a series of universal self-contained underwater acoustic signal acquisition and recording equipment, which can be used to measure various natural and artificial acoustic signals in the ocean. STDR can be used individually or conveniently as a synchronous or asynchronous array. Its self-noise level is extremely low, which can meet the noise measurement requirements in the quiet sea with zero sea state. It is widely used to collect and record various types of acoustic signals, ship radiation noise, marine environmental noise and other underwater acoustic signals, and can be applied to marine acoustic tomography, earthquake and tsunami monitoring, marine biological research and other fields.
Product Features
High integration, small size, light weight;
Low power consumption and large data storage capacity;
Adjustable working mode (continuous collection/cyclic collection), long working time;
Hydrophone differential output, strong anti-interference ability, low self-noise;
Setting parameters, sampling rate and gain are adjustable through bluetooth;
High synchronous punctuality accuracy;
Can use single node, can also freely combine into array applications;
Product serialization, the working depth covers the whole sea depth;
High integration, small size, light weight;
Main Features
√ It can collect acoustic signals transmitted through the channel, marine environmental noise signals, ship radiation/noise and other underwater acoustic signals;
√ It can be preprogrammed intermittently or continuously, and the parameters such as sampling rate, hydrophone gain and storage file length can be set by software.
√ With duty, record function;
√ Equipped with powerful subsequent data processing and analysis software, it can realize data playback, data monitoring, data interception, power spectrum analysis, 1/3oct average power spectrum analysis, line spectrum analysis, frequency band sound level calculation and other analysis and processing functions, and can automatically output the above analysis results to word files or excel tables.
Operating Mode
STDR self-contained hydrophone runs independently according to the set time schedule, and its working mode is mainly divided into cyclic working mode and continuous working mode. Cyclic work mode refers to how many hours are worked within a week; Continuous working mode refers to continuous collection and storage during the starting and ending periods of work. Different collection modes can be set according to the actual work requirements. The operating parameters of the self-contained hydrophone, including the sampling rate, hydrophone gain, and storage file length, can be set by the parameter setting software.
Equipped with special installation accessories (non-standard products, need to be purchased separately), to achieve rapid installation and disassembly of self-contained hydrophones, especially suitable for multiple self-contained hydrophones array use.
STDR series uses ultra-low power MCU and high-precision low power ADC as hardware platform, reasonable management and distribution of power supply, combined with hibernation - wake up mode, to achieve long-term working requirements.
For the design of the pre-amplifier circuit for the middle and low frequency signals, high-precision and ultra-low noise JFET discrete components are used as the first stage amplifier circuit design, and high-precision and low-bias voltage integrated operational amplifier is used as the second stage amplifier to realize the purpose of low-noise and high-gain amplification of weak signals, which can provide a background noise level as low as 2uV. It can be directly used for the measurement of zero level sea state ambient noise in deep sea.
The built-in high-precision synchronous timekeeping module of STDR synchronization series based on rubidium clock/temperature control crystal oscillator uses GPS/BD to tame the synchronous timekeeping module, and realizes the rapid taming function by processing the phase difference Kalman filter and PID algorithm. Punctuality adopts recursive least squares to fit pressure control and temperature, compensate aging and temperature parameters, and achieve high-precision punctuality.
√ Marine Observation
√ Noise monitoring of ships and underwater vehicles
√ Study on acoustic propagation characteristics
√ Marine biological research
√ Earthquake and tsunami monitoring
STDR series self-contained hydrophone has wide working frequency band, large working depth range, flexible working mode, long continuous working time, large dynamic range, small size and flexible array. Therefore, it is widely used in marine environmental noise measurement, target radiation noise measurement and sound propagation measurement. It has gone through many far-reaching sea tests in the South China Sea, the Western Pacific and other waters, and has withstood the test of extreme conditions in the South and Arctic waters.
| STDR Self-contained Hydrophone Product Selection Table | |||||||
| Product Model | STDR3000N | STDR6000N | STDR6000N | STDR6000R | STDR6000C | STDR6000E | STDR-INF |
| Working Frequency Range | 5Hz~40kHz | 5Hz~60kHz | 5Hz~60kHz | 5Hz~60kHz | 5Hz~60kHz | 5Hz~60kHz | 5Hz~10kHz |
| Sample Frequency | ≤256kHz | ≤256kHz | ≤256kHz | ≤256kHz | ≤256kHz | ≤256kHz | ≤64kHz |
| Hydrophone Sensitivity | -168dB re 1V/μPa(including preamplifier gain 26dB, wherein preamplifier gain 0 ~ 30dB can be customized) | ||||||
| Adjustable Gain | 0dB,10dB,20dB,30dB | ||||||
| Quantization Number | 24-bit | ||||||
| Self Noise | ≤35dB@1kHz | ||||||
| Dynamic Range | ≥120dB | ||||||
| Storage Capacity | 256GB | 512GB | 512GB | 512GB | 512GB | 1TB | 4TB |
| Maximum Working Depth | 3000m | 6000m | 6000m | 6000m | 6000m | 6000m | whole sea depth |
| Continuous Working Hours |
5days | 15days | 22days | 10days | 10days | 45days | 180days |
| Stand-by Time | 60days | 180days | 260days | 120days | 120days | 540days | 6years |
| Synchronous Time Keeping Function | \ | \ | \ | rubidium clock synchronous time keeping | crystal vibration synchronous time keeping | \ | \ |
| Weight in Air/Water (kg) | 1.3/0.8 | 2.7/1.5 | 3.4/1.9 | 3.4/1.9 | 3.4/1.9 | 4/2 | 70/50 |
| Body Size (mm) | φ50 x310 | φ66 x 410 | φ66 x 500 | φ66 x 500 | φ66 x 500 | φ76 x500 | |
| Shell Material | Titanium Alloy | ||||||
Yantai Kekan Ocean Technology Co., Ltd. is a technology-based small and medium-sized enterprise that integrates the researchand production of marine observation and monitoring equipment, marine environmental services,and the development of key supporting systems for marine engineering. Adhering to the spirit of "scientfic management and exploration of the deep sea", it focuses on the research and development of intelligent marine observation and monitoring equipment and the safety guarantee of offshore engineering.
The R&D team of the company is led by Professor You Zajin, an academician of the European Academy of Sciences. He has been engaged in research on ocean dynamics, numerical model construction,and has led projects funded by the Natonal Young Scholars Fund, the Ministry of Sclence and Technology's key R&D project, the National Key Fund, and multiple Australian Key Fund projects.The core personnel of the team also include multiple doctoral and high-end managemert talents in the marine field, with complementary professional backgrounds and a solid foundation for cooperation. They have jointy cariedout muliple related projects/research projects and possess the strength of product design, manufacturing, and sales. Since its establishment, the company has applied for more than 30 patents and softworks, of which 13 have been authorized, possessing exclusive intellectual property rights and strong technical barriers.
The company's main products are intelligent marine environmental element observation and monitoring equipment and high-precision early warning and forecasting system, among which the intelligent observation and monitoring equipment has the function of self-positioning, which can adjust the positioning based on real-time sea conditions and relying on low-power power system; The submarine winch has the advantages of small size, strong traction and good sealing, which can better adapt to the complexity of the seabed work; The high-precision marine hydrological element early warning and prediction system provides wave, tide, storm surge and sediment transport data, solves the problems of unclear physical mechanism and low simulation accuracy of current numerical simulaton, and can provide a solid guarantee for marine enginering.
Kekan Ocean is a creative and dynamic team. We are committed to providing more users at home and abroad with the best quality products and services.
Q: Are you a manufacturer?
Yes, our company independently manufactures, research and develop a variety of technical products.
Q: Do you offer customized services?
A: Yes, we offer a variety of products and services according to different needs of customers.
Q: Can we order one set as sample?
A: Yes, the minimum order quantity is one set.
Q: What's the order delivery time?
A: The order delivery times vary according to the type and quantity of the product. Some products are in stock, other products need about 1 month in the off-season, 1-3 months in the peak season. Generally, it takes about 15-20 days after the order is ready.
Q: Why choose Yantai Kekan Ocean Technology Co., Ltd?
A: Our company has the independent R&D team to provide high-quality products. We can adjust the product parameters and offer customized services according to different needs. We also provide reliable after-sales service.
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