Aiming at the high requirements of the experimental equipment for the measurement of high precision quartz flexible accelerometer resolution, the gravity measured by high precision tri-axial accelerometers was subdivided by the tri-axial turntable. Tri-axial quartz flexible accelerometers resolution measurement model was established and general mathematical expression for the resolution measurement was derived. Based on the mathematical expression, the effective angle range that satisfied the measurement condition was given out. Besides, the tri-axial quartz flexible accelerometers resolution measurement process was designed. Within the effective angle range, numerical simulations were performed and the simulation results showed that: the proposed method can theoretically measure tri-axial quartz flexible accelerometers of which the resolution was about 10−6g. Then the tri-axial quartz flexible accelerometers resolution repetitive measurement experiments were carried out and the experimental results illustrated that: the difference between the measured value with the theoretical value is within $1~\mu \text{g}$ , which met the requirements for use. In addition, the resolution of tri-axial quartz flexible accelerometers can be measured at one time based on the designed process, demonstrating that the proposed method was valid.

中文翻译：

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基于三轴转台的高精度三轴石英柔性加速度计分辨率测量方法

针对实验设备对高精度石英柔性加速度计分辨率测量的高要求，将高精度三轴加速度计测量的重力细分为三轴转台。建立了三轴石英柔性加速度计分辨率测量模型，推导了分辨率测量的一般数学表达式。根据数学表达式，给出满足测量条件的有效角度范围。此外，设计了三轴石英柔性加速度计分辨率测量过程。在有效角度范围内进行数值模拟，模拟结果表明：该方法理论上可以测量分辨率约为10-6g的三轴石英柔性加速度计。然后进行了三轴石英柔性加速度计分辨率重复测量实验，实验结果表明：实测值与理论值相差在$1~\mu\text{g}$以内，满足用。此外，三轴石英柔性加速度计的分辨率可以基于设计的过程进行一次测量，证明所提出的方法是有效的。实测值与理论值相差在$1~\mu\text{g}$以内，符合使用要求。此外，三轴石英柔性加速度计的分辨率可以基于设计的过程进行一次测量，证明所提出的方法是有效的。实测值与理论值相差在$1~\mu\text{g}$以内，符合使用要求。此外，三轴石英柔性加速度计的分辨率可以基于设计的过程进行一次测量，证明所提出的方法是有效的。