Research on Temperature and Transverse Sensitivity Calibration Techniques for High Precision Vibration Transducers

High-precision vibration transducers, extensively employed in aerospace engine vibration monitoring, high and low temperature ground environmental testing, and modal testing, play a critical role in ensuring the reliability of tested equipment. Accurate measurement of these transducers' sensitivity to temperature variations and their transverse sensitivity is crucial for understanding transducer performance, enhancing manufacturing process quality, and guaranteeing the reliability of various ground testing data in product development and production. This paper presents research on key calibration techniques for high-precision vibration transducers, utilizing vibration comparison methods, point-by-point rapid temperature testing technology, and precise measurement of transverse sensitivity. An integrated rapid calibration device for key parameters of vibration transducers was developed using a PXI bus architecture, creating a comprehensive measurement IEWevaluation system. Control and calibration software were developed on the LabView platform to enable integrated control and measurement. This advancement addresses the challenges in rapidly calibrating critical parameters like temperature response and transverse sensitivity. Measurement uncertainty analysis and verification experiments of the calibration device demonstrate this method's ability to meet specific testing requirements for transducer temperature characteristics and transverse sensitivity, optimize transducer design, and ensure stability in high-precision vibration transducers' online operation.