Vertical opening angle switching circuit of small forward-looking sonar transmitting array

Abstract

The utility model discloses a vertical opening angle switching circuit of a small foresight sonar transmitting array, which belongs to the field of sonar transmitting circuits and comprises relays K1 and K2, resistors R1 to R6, capacitors C1 to C5, relay indicating lamps D1 and D3, Schottky diodes D2 and D4, triodes Q1 and Q2, inductors L1 and L2, a wide beam transducer, a first medium beam transducer and a second medium beam transducer. According to the utility model, a single-path signal source and a single-path power amplifier are selected, the K1 relay switching circuit is assisted to drive the wide-beam and medium-beam transducers, and the parallel connection relation of two medium beams is switched through the K2 relay, so that the switching of the opening angles of the medium beams and the narrow beams is realized; in other words, a single-path signal generation circuit and a power amplifier circuit are multiplexed to drive the transmitting transducers with different vertical opening angles, and the device has certain significance in miniaturization of sonar equipment at present.

Description

TECHNICAL FIELD

[0001] The utility model relates to sonar transmitting circuit technical field, especially in a kind of switching vertical opening angle circuit of small front-looking sonar transmitting array. BACKGROUND

[0002] In the development and design of front-looking sonar, due to size problem, the cavity for placing transmitting circuit is narrow, and the transmitting array is required to realize the detection function of three vertical beam opening angles of wide, medium and narrow, so a kind of switching vertical opening angle circuit of small front-looking sonar transmitting array is needed, which can realize the switching of front-looking sonar vertical opening angle from the hardware point of view; Realize the function of different opening angle modes used by sonar according to the position and distance of detection target. UTILITY MODEL CONTENTS

[0003] The utility model aims at providing a kind of switching vertical opening angle circuit of small front-looking sonar transmitting array to solve the problems in the background art.

[0004] To solve the above technical problems, the utility model provides a kind of switching vertical opening angle circuit of small front-looking sonar transmitting array, comprising: relay K1 and K2, resistance R1~R6, capacitor C1~C5, relay indicator lamp D1 and D3, schottky diode D2 and D4, triode Q1 and Q2, inductance L1 and L2, wide-beam transducer, first middle-beam transducer and second middle-beam transducer;

[0005] The first end of relay K1 is connected with the negative pole of schottky diode D2 and the second end of resistance R3 simultaneously, the second end of relay K1 is connected with the positive pole of schottky diode D2, the collector of triode Q1 and the negative pole of relay indicator lamp D1 simultaneously, and the positive pole of relay indicator lamp D1 is connected with the first end of resistance R3;The base of triode Q1 is connected with the second end of capacitor C1, the second end of resistance R1 and the first end of resistance R2 simultaneously, the emitter and the first end of capacitor C1, the first end of resistance R1 are grounded;The second end of resistance R2 is connected with IO1 port;The third end of relay K1 is connected with the second end of capacitor C2 and wide-beam transducer simultaneously;The fourth end of relay K1 is connected with the first end of inductance L1, and the second end of inductance L1 is connected with the first end of wide-beam transducer and the first end of capacitor C2 simultaneously;The fifth end and the sixth end of relay K1 output two signals respectively;The seventh end of relay K1 is connected with the sixth end of relay K2, the second end of capacitor C4 and the third end of first middle-beam transducer simultaneously;The eighth end of relay K1 is connected with the first end of inductance L2, and the second end of inductance L2 is connected with the fifth end of relay K2, the first end of capacitor C4 and the first end of first middle-beam transducer simultaneously;

[0006] The first end of the relay K2 is connected with the negative pole of the Schottky diode D4 and the second end of the resistor R6, the second end of the relay K2 is connected with the positive pole of the Schottky diode D4, the collector of the triode Q2 and the negative pole of the relay indicator D3, the positive pole of the relay indicator D3 is connected with the first end of the resistor R6; the base of the triode Q2 is connected with the second end of the capacitor C3, the second end of the resistor R4 and the first end of the resistor R5, the emitter and the first end of the capacitor C3, the first end of the resistor R4 are grounded; the second end of the resistor R5 is connected with the IO2 port; the third end and the fourth end of the relay K2 are vacant; the fifth end of the relay K2 is connected with the second end of the inductor L2, the first end of the capacitor C4 and the first end of the first medium beam transducer; the sixth end of the relay K2 is connected with the seventh end of the relay K1, the second end of the capacitor C4 and the third end of the first medium beam transducer; the seventh end of the relay K2 is connected with the second end of the capacitor C5 and the third end of the second medium beam transducer; the eighth end of the relay K2 is connected with the first end of the capacitor C5 and the first end of the second medium beam transducer.

[0007] In an embodiment, the relays K1 and K2 are double-pole double-throw relays.

[0008] In an embodiment, the inductor L1 and the capacitor C2 constitute a 30° transducer resonant device; the inductor L2, the capacitor C4 and the capacitor C5 constitute a 15° transducer resonant device.

[0009] The switching vertical opening angle circuit of the small forward-looking sonar transmitting array provided by the utility model selects a single signal source, a single power amplifier, and is driven by a K1 relay switching circuit to switch the wide beam and medium beam transducers, and then switches the parallel relationship of the two medium beams through a K2 relay, so that the switching of the medium beam and narrow beam opening angle is realized, the single signal generation circuit and power amplifier circuit are used to drive the transmitting transducers with different vertical opening angles, and this has certain significance in the miniaturization of sonar equipment. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 is a switching vertical opening angle circuit structure schematic view of a small forward-looking sonar transmitting array provided by the utility model. DETAILED DESCRIPTION

[0011] The switching vertical opening angle circuit of the small forward-looking sonar transmitting array provided by the utility model is further described in detail below in combination with the drawings and specific embodiments. The advantages and characteristics of the utility model will be clearer according to the following description. It should be noted that the drawings are all very simplified and use non-precise proportions, and are only used to facilitate and clarify the purpose of assisting in the description of the utility model embodiments.

[0012] The utility model provides a kind of switching vertical opening angle circuit of small front-looking sonar transmitting array, including relay K1 and K2, resistance R1~R6, capacitor C1~C5, relay indicator light D1 and D3, schottky diode D2 and D4, triode Q1 and Q2, inductance L1 and L2, wide-beam transducer, first middle-beam transducer and second middle-beam transducer. Among them, relay K1 and K2 are double-blade double-position relay;Schottky diode D2 and D4 are placed reversely, for absorbing the reverse electromotive force of relay coil in switching process;Resistance R3, R6 are relay indicator light current-limiting resistance;The model of triode Q1, Q2 is triode 2N2222A;Resistance R2, R5 are base current-limiting resistance;Resistance R1, R4 are base pull-down resistance;Capacitor C1, C3 are base clamping capacitor;Inductance L1, capacitor C2 are 30 ° transducer resonator device;Inductance L2, capacitor C4, C5 are 15 ° transducer resonator device.

[0013] The first end of relay K1 is connected with the negative pole of schottky diode D2 and the second end of resistance R3 simultaneously, the second end of relay K1 is connected with the positive pole of schottky diode D2, the collector of triode Q1 and the negative pole of relay indicator light D1 simultaneously, and the positive pole of relay indicator light D1 is connected with the first end of resistance R3;The base of triode Q1 is connected with the second end of capacitor C1, the second end of resistance R1 and the first end of resistance R2 simultaneously, and the emitter and the first end of capacitor C1, the first end of resistance R1 are grounded;The second end of resistance R2 is connected with IO1 port;The third end of relay K1 is connected with the second end of capacitor C2 and the third end of wide-beam transducer simultaneously;The first end of inductance L1 is connected with the fourth end of relay K1, and the second end of inductance L1 is connected with the first end of wide-beam transducer and the first end of capacitor C2 simultaneously;The fifth end and the sixth end of relay K1 output two signals respectively;The seventh end of relay K1 is connected with the sixth end of relay K2, the second end of capacitor C4 and the third end of first middle-beam transducer simultaneously;The first end of inductance L2 is connected with the eighth end of relay K1, and the second end of inductance L2 is connected with the first end of first middle-beam transducer, the first end of capacitor C4 and the fifth end of relay K2 simultaneously;

[0014] The first end of the relay K2 is connected with the negative pole of the Schottky diode D4 and the second end of the resistor R6, the second end of the relay K2 is connected with the positive pole of the Schottky diode D4, the collector of the triode Q2 and the negative pole of the relay indicator lamp D3, the positive pole of the relay indicator lamp D3 is connected with the first end of the resistor R6; the base of the triode Q2 is connected with the second end of the capacitor C3, the second end of the resistor R4 and the first end of the resistor R5, the emitter and the first end of the capacitor C3, the first end of the resistor R4 are grounded; the second end of the resistor R5 is connected with the IO2 port; the third end and the fourth end of the relay K2 are vacant; the fifth end of the relay K2 is connected with the second end of the inductor L2, the first end of the capacitor C4 and the first end of the first medium beam transducer; the sixth end of the relay K2 is connected with the seventh end of the relay K1, the second end of the capacitor C4 and the third end of the first medium beam transducer; the seventh end of the relay K2 is connected with the second end of the capacitor C5 and the third end of the second medium beam transducer; the eighth end of the relay K2 is connected with the first end of the capacitor C5 and the first end of the second medium beam transducer.

[0015] After inputting the wide beam instruction from the host computer, the TTL level of the IO1 port is set as low, the TTL level of the IO2 port is set as low, the relays K1 and K2 are in the normally open state, the relay indicator lamps D1 and D3 are not lighted, and the loop contact is connected with the wide beam transducer; after inputting the medium beam instruction, the TTL level of the IO1 port is set as high, the TTL level of the IO2 port is set as low, the relay K1 is in the closed state, the relay K2 is in the normally open state, the relay indicator lamp D1 is lighted, the relay indicator lamp D3 is not lighted, the loop contact is connected with the first medium beam transducer, and the first medium beam transducer and the second medium beam transducer are not in the parallel state; after inputting the narrow beam instruction, the TTL level of the IO1 port is set as high, the TTL level of the IO2 port is set as high, the relays K1 and K2 are in the closed state, the relay indicator lamps D1 and D3 are all lighted, the loop contact is connected with the second medium beam transducer, and the first medium beam transducer and the second medium beam transducer are in the parallel state, and the beam opening angle is adjusted to the narrow beam state.

[0016] The above description is only the description of the preferred embodiment of the utility model, and does not limit the scope of the utility model, and any change and modification of the above description made by the ordinary skilled in the art of the utility model belongs to the protection scope of the claims.

Claims

1. A switching vertical opening angle circuit for a small forward-looking sonar transmitting array, characterized by Comprise: Relay K1 and K2, resistance R1~R6, capacitor C1~C5, relay indicator lamp D1 and D3, Schottky diode D2 and D4, triode Q1 and Q2, inductance L1 and L2, wide beam transducer, first medium beam transducer and second medium beam transducer; The first end of relay K1 is connected with the negative pole of Schottky diode D2 and the second end of resistance R3, the second end of relay K1 is connected with the positive pole of Schottky diode D2, the collector of triode Q1 and the negative pole of relay indicator lamp D1, the positive pole of relay indicator lamp D1 is connected with the first end of resistance R3; the base of triode Q1 is connected with the second end of capacitor C1, the second end of resistance R1 and the first end of resistance R2, the emitter and the first end of capacitor C1, the first end of resistance R1 are grounded; the second end of resistance R2 is connected with IO1 port; the third end of relay K1 is connected with the second end of capacitor C2 and the third end of wide beam transducer; the fourth end of relay K1 is connected with the first end of inductance L1, the second end of inductance L1 is connected with the first end of capacitor C2 and the first end of wide beam transducer; the fifth end and the sixth end of relay K1 output two signals respectively; the seventh end of relay K1 is connected with the sixth end of relay K2, the second end of capacitor C4 and the third end of first medium beam transducer; the eighth end of relay K1 is connected with the first end of inductance L2, the second end of inductance L2 is connected with the fifth end of relay K2, the first end of capacitor C4 and the first end of first medium beam transducer; The first end of relay K2 is connected with the negative pole of Schottky diode D4 and the second end of resistance R6, the second end of relay K2 is connected with the positive pole of Schottky diode D4, the collector of triode Q2 and the negative pole of relay indicator lamp D3, the positive pole of relay indicator lamp D3 is connected with the first end of resistance R6; the base of triode Q2 is connected with the second end of capacitor C3, the second end of resistance R4 and the first end of resistance R5, the emitter and the first end of capacitor C3, the first end of resistance R4 are grounded; the second end of resistance R5 is connected with IO2 port; the third end and the fourth end of relay K2 are vacant; the fifth end of relay K2 is connected with the second end of inductance L2, the first end of capacitor C4 and the first end of first medium beam transducer; the sixth end of relay K2 is connected with the seventh end of relay K1, the second end of capacitor C4 and the third end of first medium beam transducer; the seventh end of relay K2 is connected with the second end of capacitor C5 and the third end of second medium beam transducer; the eighth end of relay K2 is connected with the first end of capacitor C5 and the first end of second medium beam transducer.

2. The switching vertical opening angle circuit for a small forward-looking sonar transmitting array as claimed in claim 1, characterized in that, The relay K1 and K2 are double-pole double-throw relays.

3. The switching vertical opening angle circuit for a small forward-looking sonar transmitting array of claim 1, wherein, The inductance L1 and capacitor C2 constitute a 30° transducer resonant device; the inductance L2, capacitor C4 and C5 constitute a 15° transducer resonant device.

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