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分析了现有光纤水听器线圈绕制工艺中存在的瓶颈,提出了一种绕制工艺改进方法,消除了减小绕制张力受工作水深制约的影响。通过在光纤线圈绕制过程中对光纤加胶的方法实现光纤与弹性体一体化。即使在光纤线圈所受较大静水压引起的光纤截面所受压应力大于绕制张力时,光纤线圈也不会松弛,仍然可随弹性体一起形变。通过对光纤加胶绕制的光纤线圈样品进行的0~10 MPa静水压力试验,验证了该工艺改进的有效性,可在降低绕制张力制作光纤线圈的同时,确保光纤水听器在深海工作时的声学性能不受影响。由此,实现了通过降低绕制张力,大幅降低光纤线圈的插入损耗和绕制工序的失效率,提升光纤水听器的长期可靠性。
The bottlenecks existing in the winding process of the existing optical fiber hydrophone are analyzed. An improved winding method is proposed to reduce the influence of the winding tension on the working water depth. The optical fiber and elastomer are integrated through the method of plasticizing the optical fiber during the winding process of the optical fiber coil. Even if the optical fiber cross-section caused by the larger hydrostatic pressure on the optical fiber coil is greater than the winding tension, the optical fiber coil will not sag and can still deform with the elastomer. Through the test of 0 ~ 10 MPa hydrostatic pressure on the optical fiber coil sample wound with optical fiber, the improvement of the process is validated, and the optical fiber coil can be made while reducing the winding tension and at the same time, The acoustic performance is not affected. As a result, the long-term reliability of the optical fiber hydrophone can be improved by reducing the winding tension, greatly reducing the insertion loss of the optical fiber coil and the failure rate of the winding process.