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我院近年来研制成功的长基线水声导航系统所用应答器,由于选取了比较高的工作频率,同时在电路设计上采用了脉冲键控式自动增益控制电路和幅度自动门限检波电路等措施,提高了测距精度。在与本系统的询问机配用时,于200米至1米距离范围内可较好地工作。定位精度优于0.5‰±2厘米。同时,由于接收机的值班电流小于1毫安,即使采用1号干电池,工作时间仍可大于三个月。本机主机体积为φ125mm×500mm,换能器体积为φ50mm×40mm 半球形。本机经多次湖上和海上试验,证明性能稳定、可靠,并于1985年通过技术鉴定。
In recent years, our institute has successfully developed the transponder for long baseline acoustic navigation system. Due to the high operating frequency selected, the pulse-keying automatic gain control circuit and the amplitude automatic threshold detection circuit are adopted in the circuit design. Improve the accuracy of ranging. When used with the interrogator of this system, it works well within the range of 200 meters to 1 meter. Positioning accuracy better than 0.5 ‰ ± 2 cm. At the same time, due to the receiver on duty current less than 1 mA, even with the No. 1 batteries, working hours can still be greater than three months. The host host volume φ125mm × 500mm, transducer size φ50mm × 40mm hemispherical. The machine after many lake and sea trials, proved stable and reliable, and in 1985 passed the technical appraisal.