公开(公告)号：US20230366752A1

公开(公告)日：2023-11-16

申请号：US18315626

申请日：2023-05-11

Applicant: ShockWatch, Inc

Inventor： Johannes van Niekerk ,  Philippe Marrec ,  Uma Shivkumar ,  Bagavant Shivkumar

IPC: G01K11/06 ,  G01K1/024

CPC classification number: G01K11/06 ,  G01K1/024 ,  G01D9/007

Abstract: A temperature indicator includes a compound comprising an ionic fluid disposed in contact with an absorbent medium at a first location. Detection circuitry is coupled to the absorbent medium at a second location spaced apart from the first location. Communications circuitry is coupled to the detection circuitry and is configured to output a value indicating an actuation state of the temperature indicator indicated by the detection circuitry. Responsive to the temperature indicator being exposed to a temperature exceeding a temperature threshold, the compound migrates along the absorbent medium from the first location toward the second location. The detection circuitry is configured to indicate the actuation state based on a presence of the compound at the second location.