Constructing Micromechanical Frequency Combs in Bifurcating Attractor Branches for Event Triggered Sensors
Journal
2023 22nd International Conference on Solid-State Sensors, Actuators and Microsystems, Transducers 2023
Start Page
461
End Page
464
ISBN (of the container)
9784886864352
ISBN
9784886864352
Date Issued
2023-01-01
Author(s)
Abstract
This work demonstrates for the first time a micromechanical event triggered/recorded sensor using internal resonance (IR) induced frequency combs at the output as an indicator to monitor a particular changing sequence for the physical parameter to be sensed. Particularly, based on an in-plane flexural mode beam resonator with a 1:5 IR region purposely aligned with the bifurcating attractor branches, IR can be triggered when the device driven at a fixed driving frequency has gone through a particular sequence of temperature. The event triggered sensor, similar to regular electrical triggers with hysteresis, presents frequency combs at the output (as bit "1") for the temperature rising across 30°C and retains combs even when the temperature reduces below 30°C. Until the temperature decreases below 24°C (as bit "0"), frequency combs then disappear. This technique imparts some sort of intelligence into the device and makes them useful for event recording/monitoring sensor applications.
Event(s)
22nd International Conference on Solid-State Sensors, Actuators and Microsystems, Transducers 2023, Kyoto, 25 June 2023 through 29 June 2023
Subjects
bifurcating attractor branches
Event triggered sensor
frequency combs
internal resonance
nonlinear resonator
Type
conference paper