Magneto-mechanical resonator sensor with mass distribution channel

US10451588B2 · kind B2 · utility

Assignee

• 3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

• Orlin B. Knudson · Vadnais Heights, US
• Jia Hu · Mounds View, US
• Chaodi Li · Woodbury, US
• Richard L. Rylander · Stillwater, US
• Cheryl Lee Senger Elsbernd · Woodbury, US
• Stephen J. Willett · Windom, US
• Andrew P. Bonifas · Swan Hills, CA

Key dates

• Filing date: Aug 25, 2015
• Grant date: Oct 22, 2019
• Expiry date: Feb 1, 2036

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2291/02863
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Magneto-Mechanical Resonator Sensor with Mass Distribution Channel Some aspects of the present disclosure feature a sensing device (e.g. for temperature, moisture or detection of substances) comprising a magnetic bias layer, a resonator, a spacer, and an environmental change receptor. The spacer is disposed between the magnetic bias layer and the resonator. At least one of the resonator surfaces has a predefined channel. The environmental change receptor is disposed proximate to the predefined channel. In response to a change in environment, the environmental change receptor distributes along a part of the channel.