The world's largest class anechoic water tank for measuring the acoustic characteristics of underwater communication devices.

消声水池（anechoic water tank）是2015年公布的计量学名词。 在所有界面上均敷设能有效吸收声能的吸声材料，使在一定区域内形成自由声场的测量水池。 《计量学名词》第一版。 [1] 消声水池（anechoic water tank）是2015年公布的计量学名词。

The anechoic tank is 50m in length, 15m in width, and 10m in depth, with movable vertical separating wall and two experimental platforms.. The sound absorption materials cover six faces of the...

1988年，中国西北工业大学航海学院建成了中国当时最大的消声水池，水池长20米、宽8米、深7米，水深6.8米。 另外，中国科学院声学研究所、杭州应用声学研究所、哈尔滨工程大学、浙江 …

anechoic water tank was selected to study the characteristics of free sound field. In addition, there may be multiple radiated sound sources in underwater acoustic experiments, including the same level sound sources and secondary sound sources

In this paper, a 20 MPa high-pressure anechoic tank is designed to satisfy the static pressure test within 2 000 meters of water depth, and the acoustic performance test under different water depths can be realized with the additional acoustic metering system. The tank adopts a cylindrical shell, and the covers at both ends are hemispherical.

Anechoic water tank An anechoic water tank is used as a land-based facility for hydroacoustic instruments to take measurements of the sensitivity and directivity of high frequency transducers (Figure 4). Wedged-type sound absorbing resin materials are attached to the internal surface of the water tank, which makes it possible to

2005年8月12日 · This theoretical concept is now applied to the design of an anechoic water tank. The previous paper considers only coherent reflection and assumes convenient but unrealistic properties for the layer's materials.

The main factors affecting the sound absorption performance of the anechoic tank are the proper-ties and structure of the sound absorbing materials. Through experimental comparison, this paper finds that the optimized design of the geometric structure of the anechoic tank can also improve the sound absorption performance.

In this paper, a 20 MPa high-pressure anechoic tank is designed to satisfy the static pressure test within 2 000 meters of water depth, and the acoustic performance test under different water depths can be realized with the additional acoustic metering system. The tank adopts a cylindrical shell, and the covers at both ends are hemispherical.