US 12,306,067 B2
Air leak detection device, air leak detection method and system thereof
Li-Ping Pan, New Taipei (TW); and Xiao Qin Wang, New Taipei (TW)
Assigned to Wistron Corporation, New Taipei (TW)
Filed by Wistron Corporation, New Taipei (TW)
Filed on Aug. 22, 2022, as Appl. No. 17/892,158.
Claims priority of application No. 111112734 (TW), filed on Apr. 1, 2022.
Prior Publication US 2023/0314263 A1, Oct. 5, 2023
Int. Cl. G01M 3/16 (2006.01)
CPC G01M 3/16 (2013.01) 17 Claims
OG exemplary drawing
 
1. An air leak detection method, used for a cavity, comprising:
inputting, by a signal generator, a scanning signal into the cavity;
recording, by a storage, a response signal of the cavity related to the scanning signal; and
analyzing, by a processor, the response signal for determining whether the cavity is air leaking;
wherein the step of analyzing the response signal for determining whether the cavity is air leaking comprises:
calculating an impedance curve of the cavity according to the response signal; and
comparing an impedance peak value of the impedance curve with a threshold to determine whether the cavity is air leaking.