Active ultrasonic probe circuit capable of transmitting signals with twin wire
A technology for transmitting signals and ultrasonic waves, applied in wired transmission systems, using sound waves/ultrasonic waves/infrasonic waves for material analysis, transmission systems, etc., can solve the problems of poor anti-interference effect and high cost, and achieve energy saving, environmental protection, and interference removal , Improve the effect of anti-interference
Inactive Publication Date: 2012-08-22
广州市奇舰达电子有限公司
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Problems solved by technology
In order to solve this problem, the existing technology generally uses shielded wires and integrated circuits to design this circuit, which has high cost and poor anti-interference effect
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[0021] Hereinafter, the present invention will be further described in detail with reference to the examples and drawings, but the implementation of the present invention is not limited thereto.
[0022] Such as figure 1 As shown, an active ultrasonic probe circuit using double-stranded wires to transmit signals includes an ultrasonic sensor, a sensor signal receiving and amplifying circuit, a transformer, a working power generating circuit, and a host signal transmitting circuit; the working power generating circuit is provided to each circuit separately Power supply, the output end of the host signal transmitting circuit is connected to the sensor to emit ultrasonic signals; the reflected echo output end of the sensor is connected to the input end of the signal receiving and amplifying circuit; the input end of the working power generating circuit, the output end of the sensor signal receiving and amplifying circuit and the host signal The input end of the transmitting circuit i...
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The invention discloses an active ultrasonic probe circuit capable of transmitting signals with a twin wire, which comprises an ultrasonic sensor, a sensor signal receiving and amplification circuit, a transformer, a working power generating circuit and a host machine signal transmission circuit, wherein the working power generating circuit respectively supplies power to the other circuits; the output end of the host machine signal transmission circuit is connected with the sensor and transmits ultrasonic signals; the reflection echo output end of the sensor is connected to the input end of the signal receiving and amplification circuit; the input end of the working power generating circuit, the output end of the sensor signal receiving and amplification circuit, and the input end of the host machine signal emission circuit are the same end and connected with the corresponding input / output port in the host machine through one strand of the twin wire; and the other strand of the twin wire is connected between the host machine and the common ground of the circuits. The invention adopts simple circuits, and can complete the circuit by using a common twin wire instead of a shielding wire; and the invention effectively enhances the reliability of the active ultrasonic probe circuit, and has the advantages of simple circuit, low cost and favorable anti-interference performance.
Description
Technical field [0001] The invention relates to the field of active ultrasonic probe circuits, in particular to an active ultrasonic probe circuit that uses double-stranded wires to transmit signals. Background technique [0002] At present, ultrasonic probes are generally divided into passive ultrasonic probes and active ultrasonic probes. The working principle of the active ultrasonic probe is: the host signal transmitter circuit transmits the signal transmitted by the host to the sensor through the transformer, and the sensor outputs; the sensor receives the reflected tiny signal, amplified by the signal amplifier, and then transmits the signal to the host deal with. In this process, the host transmits the signal and the sensor receives the signal. If the two signals are handled carelessly, the two signals will interfere with each other, reducing the reliability of the active ultrasonic probe. To solve this problem, the prior art generally uses shielded wires and integrated ...
Claims
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IPC IPC(8): G01N29/24G01S15/93G01S7/52H04B3/20
Inventor 黄国全
Owner 广州市奇舰达电子有限公司