风洞振动校准装置研制

针对风洞振动传感器和振动测量系统等测试特点，系统介绍了一种校准频率范围跨越低中高频性能满足风洞振动特征和测试需求的校准装置。通过仿真计算和优化设计，解决了风洞振动校准装置运动部件动力优化设计、气隙磁路优化设计、精密气膜导向设计、功率放大器设计、振动台低频失真控制等关键技术问题，校准装置研制完成后经第三方计量部门检定，性能指标和校准不确定度评定结果远高于相关技术要求，有效提升了风洞振动测量方面计量保障能力。

Development of wind tunnel vibration calibration device

For wind tunnel test characteristic such as vibration sensor and measurement system, the system introduces a calibration frequency range across the high frequency of low frequency can meet the demand of wind vibration characteristics and testing of the calibration device, the power of the moving parts, solve the optimal design, the air gap magnetic circuit optimization design, precision guide design, power amplifier design of gas film, shaking table control of key technical problems such as low frequency distortion, The evaluation results of device performance test and calibration uncertainty are far higher than the relevant technical requirements, which effectively improves the measurement support ability of wind tunnel vibration measurement.