▎ 摘　　要

NOVELTY - Nanomechanical resonator (160) comprises processing electronics configured to control an actuator to actively control a resonant frequency of a portion of a graphene sheet (161) by applying a variable out-of-plane force to the graphene sheet, where the graphene sheet is at least partially suspended from a support structure and has a carbon lattice that substantially defines a plane. USE - The nanomechanical resonator is used for filtering electronics, ultrasonic acoustics or chemical detection. ADVANTAGE - The nanomechanical resonator utilizes the graphene sheet having desired spatial distribution of defects in the carbon lattice. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) controlling (I) a resonant frequency of the graphene nanomechanical resonator, comprising controlling, by processing electronics, the actuator to actively control the resonant frequency of a portion of a graphene sheet by applying out-of-plane force to the graphene sheet; and (2) controlling (II) a resonant frequency of a graphene nanomechanical resonator, comprising controlling, by processing electronics, a resonant frequency of a portion of a graphene sheet by applying an out-of-plane force to the graphene sheet. DESCRIPTION OF DRAWING(S) - The figure shows a schematic elevational view of the nanomechanical resonator. Resonator (160) Graphene sheet (161) First support structure (162) First end (163) Second support structure (164)