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Bionic sonar capsule

A bionic sound and sonar technology, applied in the field of bionic sonar head, can solve the problem that the application circuit of ultrasonic transducer cannot meet the biological sonar technology, and achieve the effect of high strength, good high frequency performance and high sensitivity

Inactive Publication Date: 2013-03-27
NANJING UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Biosonar technology is a sonar system for studying creatures (bats, dolphins, etc.) with natural sonar. Figure 5 ), the current commonly used ultrasonic transducer application circuit that emits square waves cannot meet the research requirements of biosonar technology

Method used

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  • Bionic sonar capsule
  • Bionic sonar capsule
  • Bionic sonar capsule

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Embodiment Construction

[0013] The invention relates to a new type of biological sonar bionic sonar head, which transmits and receives bionic sonar signals through a transmitter and two receivers, simulating the mouth and binaural functions of natural sonar, and involves special low-noise transmitter signals Conditioning circuit and receiving end signal conditioning circuit.

[0014] combine figure 1 , a bionic sonar head, including a sonar signal transmitting unit and an echo receiving unit, the sonar signal transmitting unit includes a transmitting end electrostatic ultrasonic transducer and a transmitting end signal conditioning circuit, the transmitting end signal conditioning circuit converts the acoustic The bionic sonar signal generated by the nano signal source is transmitted to the electrostatic ultrasonic transducer at the transmitting end and sent out by it; the echo receiving unit is a dual-channel, including two sets of identical receiving end electrostatic ultrasonic transducers and T...

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Abstract

The invention relates to a novel biosonar bionic sonar capsule. Bionic one-lip double-ear configuration is adopted to emit and receive a bionic sonar signal through one transmitting terminal and two receiving terminals to simulate the one-lip double-ear recognition function of natural sonar. The sonar capsule mainly comprises electrostatic ultrasonic transducers at the transmitting terminal and the receiving terminals, a transmitting terminal signal conditioning circuit, a receiving terminal signal conditioning circuit and a bionic outer shell, wherein a sonar signal input by a sonar signal source is amplified by the transmitting terminal signal conditioning circuit, a sonar signal is emitted to an environmental target or an artificial target through the electrostatic ultrasonic transducer at the transmitting terminal, and an echo signal reflected by a target or an obstacle is transformed, by the electrostatic ultrasonic transducers at the receiving terminals, into an electric signal, amplified and filtered by the receiving terminal conditioning circuit and output to a signal acquisition system.

Description

technical field [0001] The invention belongs to the field of sensor applications, in particular to a bionic sonar head. Background technique [0002] At present, the sonar system based on ultrasonic transducer has been widely used in the field of distance measurement and obstacle avoidance of mobile robots. A typical ultrasonic ranging system is generally based on the time-of-flight detection method. It consists of an ultrasonic transducer, a transducer drive circuit and a data acquisition system. Its front-end circuit is used to transmit ultrasonic waves with a square wave waveform. [0003] As the front-end device of the bio-sonar system, the sonar head needs to have good high-frequency performance and a wide operating frequency range, and also needs to have high sensitivity and fast response capability. Biosonar technology is a sonar system for studying creatures (bats, dolphins, etc.) with natural sonar. Figure 5 ), the current commonly used ultrasonic transducer appli...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/52
Inventor 王茂森陈明霞王猛章鹏杨华
Owner NANJING UNIV OF SCI & TECH
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