公开(公告)号：US11561144B1

公开(公告)日：2023-01-24

申请号：US16262724

申请日：2019-01-30

Applicant: Apple Inc.

Inventor： Caleb C. Han ,  Brad G. Boozer ,  Mark G. Walsh ,  William S. Lee ,  Tongbi T. Jiang ,  Jun Zhai ,  Yun X. Ma ,  James G. Horiuchi ,  David MacNeil ,  Ashwin Balasubramanian ,  Wei Chen ,  Jie-Hua Zhao

IPC: G04G21/02 ,  G01L7/08 ,  G01C5/06 ,  G04G17/02 ,  G04B47/06 ,  G04G21/08

Abstract: An electronic device, such as a smart watch, incorporating a fluid-based pressure-sensing device is disclosed. The fluid-based pressure-sensing device includes an enclosure, a pressure sensor, a diaphragm and a sensing medium. The enclosure includes an opening and the pressure sensor is disposed inside the enclosure. The diaphragm hermetically seals the opening, and the sensing medium transfers a pressure exerted on the diaphragm to the pressure sensor. The sensing medium can be liquid oil filling a space of the enclosure, and the diaphragm is a polymer material. The pressure-sensing device may sense an environmental pressure, which may be used by the electronic device to modify its operations, change information that is displayed, and so on.