公开(公告)号：US20240328874A1

公开(公告)日：2024-10-03

申请号：US18545650

申请日：2023-12-19

Applicant: Apple Inc.

Inventor： Matthias IKEDA ,  Gregory B. ARNDT ,  Richard YEH

IPC: G01L1/22

CPC classification number: G01L1/2281

Abstract: An apparatus of the subject technology includes a membrane, a first circuit and a second circuit. The first circuit includes a number of resistive elements disposed on the membrane to measure a pressure difference. The first circuit has a resistance. The second circuit implements a temperature calibration procedure by utilizing the resistance to measure a temperature used in the temperature calibration procedure.