Patent ID: 11953514
Assignee: EMCORE CORPORATION
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 13:
14. The apparatus of claim 1 wherein: (i) over an operational range of accelerations along the sensing axis, one or more or all of the difference frequencies Δf=f1−f2, ΔF=F1−F2, or ΔF′=F′1−F′2 vary substantially linearly with acceleration of the apparatus along the sensing axis; (ii) at zero acceleration along the sensing axis, one or more or all of the difference frequencies Δf=f1−f2, ΔF=F1−F2, or ΔF′=F′1−F′2 are non-zero; or (iii) over an operational range of acceleration along the sensing axis, one or more or all of the difference frequencies Δf=f1−f2, ΔF=F1−F2, or ΔF′=F′1−F′2 do not change sign.