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CN-122026848-A - Deep sea impedance self-adaptive adjusting device based on piezoelectric ceramic driving

CN122026848ACN 122026848 ACN122026848 ACN 122026848ACN-122026848-A

Abstract

The invention discloses a deep sea impedance self-adaptive adjusting device and method based on piezoelectric ceramic driving, and belongs to the technical field of deep sea equipment impedance adjustment. The invention adopts the environment sensing, piezoelectric ceramic driving adjustment, impedance detection calibration and a main control module to construct a closed-loop control system, adjusts equivalent impedance through the expansion and contraction amount of the piezoelectric ceramic, realizes dynamic matching with the intrinsic impedance of seawater, and solves the problems of lag response, insufficient precision and poor adaptability of the extreme environment of the deep sea in the traditional adjustment scheme. The device has the characteristics of light weight, full sea depth compression resistance and water resistance, response speed and adjustment precision are superior to those of the traditional technology, the interference suppression efficiency of deep sea detection equipment can be remarkably improved, the device is suitable for scenes such as deep sea detection and communication, and the industrialization value is outstanding.

Inventors

  • JIANG GUOYING

Assignees

  • 蒋国英

Dates

Publication Date
20260512
Application Date
20260118

Claims (8)

  1. 1. The deep sea impedance self-adaptive adjusting device based on piezoelectric ceramic driving is characterized by comprising an environment sensing module, a piezoelectric ceramic driving adjusting module, an impedance detection and calibration module and a main control module, wherein the environment sensing module comprises a full-range optical fiber depth sensor and a seawater salinity indirect detection unit, the piezoelectric ceramic driving adjusting module adopts an annular laminated piezoelectric ceramic structure, an outer layer is provided with a corrosion-resistant waterproof protective layer, the device has wide-range impedance adjusting capability, response speed and adjusting precision are superior to those of the prior art, the impedance detection and calibration module comprises a high-frequency impedance analysis unit which covers a common deep sea detection frequency band, and the main control module is electrically connected with each module to realize closed-loop control.
  2. 2. The device of claim 1, wherein the device is lightweight overall, and the compression rating meets full sea depth operating standards, and the water resistance rating reaches a high protection rating.
  3. 3. The device according to claim 1, wherein the environmental sensing module can complete self-detection and parameter collection in a short time, and no additional independent sensor is needed for salinity detection.
  4. 4. A deep sea impedance self-adaptive adjustment method based on the device of any one of claims 1-3 is characterized by comprising the following steps of starting and initializing an S1 device, enabling an environment sensing module to rapidly complete parameter acquisition, enabling an S2 main control module to call a sea water impedance-depth correlation model to calculate a target impedance value, enabling an S3 piezoelectric ceramic driving adjustment module to execute impedance adjustment action, enabling an S4 impedance detection calibration module to verify actual impedance, triggering secondary adjustment when deviation exceeds a threshold value, and enabling an S5 to update environment parameters regularly to continuously optimize impedance matching precision.
  5. 5. The method according to claim 4, wherein the seawater impedance-depth correlation model in step S2 is constructed based on deep sea environment parameter big data.
  6. 6. The method of claim 4, wherein the secondary adjustment in step S4 reduces ineffective adjustment actions and increases the efficiency of the device.
  7. 7. The method of claim 4, wherein the parameter update period of step S5 is flexibly set according to actual job requirements.
  8. 8. The method of claim 4, wherein the method enables continuous stable operation of the device in a full sea depth environment for more than a hundred hours.

Description

Deep sea impedance self-adaptive adjusting device based on piezoelectric ceramic driving Technical Field The invention relates to the technical field of deep sea equipment impedance adjustment, in particular to a deep sea impedance self-adaptive adjustment device and method based on piezoelectric ceramic driving. Background The invention relates to the technical field of deep sea equipment impedance adjustment, in particular to a deep sea impedance self-adaptive adjustment device and method based on piezoelectric ceramic driving. Disclosure of Invention (1) Object of the invention The invention aims to provide a deep sea impedance self-adaptive adjusting device and method based on piezoelectric ceramic driving, which solve the technical pain points of slow response, low precision and poor deep sea suitability of the traditional adjusting scheme and realize quick and accurate impedance matching in a full sea deep environment. (2) Technical proposal The invention adopts a pressure-resistant modularized design, the device core consists of an environment sensing module, a piezoelectric ceramic driving and adjusting module, an impedance detection and calibration module and a main control module, and the modules are connected through a waterproof data bus to form a closed-loop control system. The environment sensing module is provided with a full-range optical fiber depth sensor and a seawater salinity indirect detection unit, can acquire deep sea environment parameters in real time and rapidly output the parameters to the main control module; The piezoelectric ceramic driving and adjusting module adopts an annular laminated piezoelectric ceramic structure, an outer layer is provided with a corrosion-resistant waterproof protective layer, and the equivalent impedance is adjusted by changing the expansion and contraction amount of the piezoelectric ceramic so as to realize dynamic matching with the intrinsic impedance of seawater; The impedance detection and calibration module is internally provided with a high-frequency impedance analysis unit, can detect the adjusted impedance value in real time, feeds deviation data back to the main control module, and triggers secondary calibration; and the main control module adopts an industrial-level high-performance singlechip, embeds an impedance matching algorithm, and completes environmental parameter analysis, adjustment instruction issuing and dynamic optimization. The corresponding adjusting method comprises the steps of starting initialization, target impedance calculation, driving adjustment, detection calibration and dynamic optimization, and the accurate matching of the impedance is realized through closed-loop control. (3) Advantageous effects ① The response speed is high, the response speed is greatly improved compared with the traditional mechanical adjustment by adopting a laminated piezoelectric ceramic driving scheme; ② The adjustment precision is high, the impedance matching error is controlled in the industry leading range by combining the impedance detection calibration closed loop design; ③ The environment adaptability is strong, the waterproof and compression-resistant protective structure is designed in a targeted manner, and the operation requirement of the full sea depth extreme working condition is met; ④ The method has high industrialization value, has obvious cost advantage compared with the imported similar devices, and can be widely applied to the fields of deep sea detection, communication and the like. Detailed Description Example 1 full sea depth extreme Environment application The device is put into a ten-thousand-meter deep sea area, the device is automatically decompressed and self-inspected after being put into water, and the environment sensing module completes depth parameter acquisition in a short time. The main control module calls a seawater impedance-depth correlation model, calculates a target impedance value in the current environment, and sends an adjusting instruction to the piezoelectric ceramic driving adjusting module. The module can quickly adjust the expansion and contraction amount of the piezoelectric ceramic to complete impedance matching, and the impedance detection and calibration module can verify the actual impedance, the deviation value meets the threshold value requirement, and secondary adjustment is not needed. The device continuously and stably works for hundreds of hours, the impedance matching precision is kept stable, and the operation is fault-free. Example 2 deep sea resource exploration application The device is carried on deep sea mineral exploration equipment and deployed to a deep sea area with the level of thousands of meters. The device completes initialization, impedance calculation, adjustment and calibration according to the flow, and the deviation value is controlled in the optimal range. After the electromagnetic interference suppression device is matched with exploration equipment for use, the