Loop impedance calculation method based on high-frequency acquisition of HPLC module

• Main Authors: QU FEI, ZHANG RUNDAN, SUN PENGXIANG, SUN LINA, ZHAO YUDONG, LU YUE, QU GUANGRUI, WU TONG, WANG SHICHENG, DAI YU, LIN FANTAO, WANG HAOMIAO, LIU XINRAN, SHANG YING
• Format: Patent
• Language: Chinese; English
• Published: 26.02.2021
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The invention discloses a loop impedance calculation method based on HPLC module high-frequency acquisition, and the method comprises the following steps: 1, employing an HPLC module to periodically (minute level) collect voltage U(t) and current I(t) data recorded by a meter; 2, judging whether the current variation delta I(t) of two adjacent points exceeds a set threshold value or not; 3, if thecurrent variation exceeds the set threshold value, increasing the data acquisition density to a second level, otherwise, returning to the step 2, and continuing minute-level periodic data acquisition; 4, recording the voltage U(t1), the voltage U(t2), the current I(t1) and the current I(t2) of two points when the data variation of two adjacent points acquired at high frequency exceeds the set threshold value, otherwise, continuing to perform second-level high-frequency data acquisition; and 5, calculating a loop impedance value according to the variation of the voltage and the current. The method is easy to implement