Your Professional Ultrasonic Underwater Communication Transducer Supplier
Xian Baochen Information Technology Co., Ltd. is located in high-tech Zone, Xi 'an, Shaanxi Province, China, is a focus on sensors, transmitters, inverters, power semiconductor devices and supporting instruments R & D, manufacturing, sales and service enterprises. The company invests in research and development team, cooperates with excellent universities, integrates industry resources, and provides the best quality solutions for domestic and foreign users. Enterprise mission: to meet user needs and create value for customers.
Why choose us
Sales Market
We Products are exported to Europe, America, Southeast Asia, West Asia, Central Asia and other countries around the world. Our products are well received in these markets.
Our Service
Able to quickly respond to customer needs, to provide personalized customization, timely delivery, professional technical support and perfect after-sales service.
Strict Quality Control System
Able to efficiently produce large quantities of products, advanced production processes and stable supply chains, the implementation of strict quality control system. Constantly introduce new technologies and new materials to improve product performance and production efficiency.
Wide Range of Applications
Through the EU CE, RoHs testing, products are widely used in petrochemical, water conservancy and hydrology, machinery and equipment, automobile manufacturing, industrial process control, weighing measurement, people's livelihood applications and other fields.
Ultrasonic Underwater Communication Transducer
Ultrasonic Underwater Communication Transducer a thin-film acoustic transducer with an array of microdomes is made of polyvinylidene fluoride (PVDF) film. Finite Element Method (FEM) was used to model the transducers and compared with experimental results. Pool trials show that the dome-shaped transducer maintains great performance in acoustic transmission especially in mid-to-high frequencies (from 80kHz to 200kHz), with peak sound pressure level (SPL) reaching 103 dB.
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Distance |
100m or Custom. |
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Frequency |
40KHZ. |
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Communication Rate |
96bps. |
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Transmitter Data |
1 to 12 characters. |
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Bit Error Rate |
≤8% ( Related to the test environment). |
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Communication Mode |
RS485, modbus protocol. |
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Withstand Voltage |
100m depth. |
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Operating Environment |
Water depth greater than 2 meters, away from the |
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Protection Grade |
IP68 |
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Working Temperature |
0℃～+60℃ |
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Joint Thread Size |
M33*1.5 |
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Storage Requirements: Storage ambient temperature |
-20～+60℃;Storage environment pressure:Normal pressures |
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Storage environment humidity |
≤90%RH(non-condensing) |
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Other Requirements |
No corrosive liquids, gases or vapors in the environment, no vibration |
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Wiring Definition |
Red: 12V + ; Green: 12; White: 485A; Yellow: 485B |
Features of Ultrasonic Underwater Communication Transducer
Efficient Energy Conversion
Using piezoelectric ceramic materials, which offer high mechanical strength and stability, this technology enables efficient bidirectional conversion between electrical and acoustic signals, minimizing energy loss.
Strong Anti-Interference Capability
Ultrasonic waves have short wavelengths (for example, a 200kHz sound wave has a wavelength of 7.5mm in seawater), easily forming a thin beam with excellent directionality. This effectively resists underwater multipath (signal interference caused by acoustic reflections) and time-varying effects (signal attenuation caused by water currents and temperature fluctuations).
Adaptable to Complex Environments
Some models support operation in extreme conditions, such as -40°C, altitudes up to 5,500 meters, and force 7 winds, ensuring stable operation in deep-sea and polar regions.
Temperature adaptability: Some transducers can operate stably within a temperature range of -40°C to +60°C, meeting the needs of polar research.
Pressure tolerance: Deep-sea transducers, such as those equipped on the "Struggler" manned submersible, can withstand pressures of 110 MPa (equivalent to a water depth of 11,000 meters).
Corrosion-resistant design: Titanium alloy or ceramic packaging resists corrosion from seawater salinity, resulting in a lifespan of over 10 years.
Energy efficiency: Ultrasonic transducers utilize piezoelectric ceramic materials, achieving energy conversion efficiency exceeding 70% (compared to approximately 30% for electromagnetic wave communications). For example, an underwater sensor network node extended its flight time from 30 days to 90 days by optimizing the transducer drive circuit.
Covert communication capability: Ultrasonic frequencies are above the human hearing range (>20 kHz), and their energy is concentrated when propagating underwater, making them difficult for enemy detection. This characteristic is often utilized in the military for encrypted communications. For example, submarines use ultrasonic modulated signals to transmit combat commands, which is far more secure than radio communications.
Type of Ultrasonic Underwater Communication Transducer
Piezoelectric transducers
Utilize the inverse piezoelectric effect (electrical signal to mechanical vibration) and direct piezoelectric effect (mechanical vibration to electrical signal) of piezoelectric materials to achieve electrical-to-acoustic conversion.
Magnetostrictive transducers
Based on the magnetostrictive effect (magnetic field change to mechanical deformation) and Villari effect (mechanical stress to magnetic permeability change) of ferromagnetic materials.
Capacitive transducers
Achieve electrical-to-acoustic conversion by changing the distance between capacitor plates (mechanical vibration) or the dielectric constant (electric field change).
Applications of Ultrasonic Underwater Communication Transducer
Underwater Communications
Enables encrypted information transmission between submarines and unmanned underwater vehicles, supporting long-distance digital voice and image transmission (e.g., 50 kilometers).
Ocean Exploration
Detects seabed topography and oil and gas resource distribution, creating high-precision "topographic acoustic maps" (with an accuracy of ≤ 20 cm).
Fishery Monitoring
Underwater fish finders use transducers to emit sound waves to detect the location, size, and movement of fish schools, assisting in fishing operations.
Environmental Monitoring
Measures parameters such as seawater temperature, salinity, and flow rate to assess the health of marine ecosystems.
Underwater Robotic Navigation
Provides positioning and obstacle avoidance information for AUVs (autonomous underwater vehicles), ensuring safe operation in complex waters.
Biomedical Testing
Using ultrasound imaging technology (such as B-ultrasound), it observes the physiological condition of internal organs and promptly detects pathological changes.
Electroacoustic Conversion
An electric oscillator generates a high-frequency electrical signal (e.g., 80kHz), which drives a piezoelectric ceramic material (such as lead zirconate titanate) to produce mechanical vibrations, generating ultrasonic signals. These sound waves propagate underwater, carrying information such as text, voice, or images.
Acoustic-to-Electric Conversion
A transducer at the receiving end captures the reflected or transmitted acoustic wave signal. The piezoelectric ceramic reconverts the mechanical vibrations into an electrical signal, which is then decoded back into the original information. For example, in underwater acoustic communication, after the sound wave is transmitted through the water medium, the transducer at the receiving end converts the acoustic signal back into an electrical signal, enabling information decoding.
Maintenance
Daily Cleaning and Inspection
Remove dirt and grease from the transducer surface and wipe with a neutral detergent to avoid solvent corrosion.Inspect cables and connectors for looseness, wear, or corrosion, and ensure secure connections.
Seal Testing
For transducers operating in liquid environments, regularly inspect the integrity of the seals and sealant.Verify the seal by performing an airtight test (e.g., observing bubbles after inflation and immersion in water).
Temperature Control and Heat Dissipation
Ensure the transducer's operating temperature is within the specified range (e.g., to avoid damage to the electrodes caused by prolonged high temperatures). Install a heat sink or air cooling device, and optimize the drive circuit (e.g., increase drive power, reduce gate resistance).
Mechanical Protection and Shock Absorption
Protect the transducer from mechanical shock or compression. Use elastic brackets to reduce vibration during installation.Pack the transducer in a dust bag during transportation or storage to prevent damage.
Calibration Cycle and Recordkeeping
Determine the calibration cycle based on manufacturer recommendations or usage frequency (e.g., annually or before critical tasks). Record the time, content, and issues of each maintenance session, and create a maintenance log to optimize planning.
FAQ
As one of the leading ultrasonic underwater communication transducer manufacturers and suppliers in China, we warmly welcome you to wholesale cheap ultrasonic underwater communication transducer in stock here from our factory. All customized products are with high quality and competitive price.
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