Dynamic monitoring method and device for string wire instrument

• Main Authors: GUO XINLAN, WANG JUNSHAN, MAO LIANGMING, FENG BO, JIAN LEI
• Format: Patent
• Language: Chinese; English
• Published: 03.11.2023
• Subjects: ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS; MEASURING; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR; MEASURING QUANTITY OF HEAT; MEASURING TEMPERATURE; PHYSICS; TARIFF METERING APPARATUS; TESTING; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR

The invention discloses a dynamic monitoring method and device for a string wire instrument, the device comprises a CPU, a frequency f parameter measuring circuit, a temperature T parameter measuring circuit, a high-speed AD acquisition card and a computer, and the frequency f parameter measuring circuit comprises a high-speed switch, a power amplification circuit, a coil, a signal conditioning circuit and a negative feedback circuit. A negative feedback excitation mechanism is introduced into a frequency f parameter measurement method according to the working characteristics of a string wire instrument and dynamic monitoring requirements, accurate excitation and rapid following output of the string wire are achieved, meanwhile, a high-speed AD acquisition card is introduced, an FFT signal analysis means is adopted, and various technical index requirements of dynamic monitoring can be systematically met. 本发明公开了一种钢弦式仪器动态监测方法及装置，所述装置包括CPU、频率f参量测量电路、温度T参量测量电路、高速AD采集卡和电脑，所述频率f参量测量电路包括高速开关、功率放大线路、线圈、信号调理电路和负反馈电路。本