Atmospheric pressure measuring apparatus and method of measuring atmospheric pressure
AssigneeToshiba Storage Device Corporation
InventorsYoshitaka Suzuki, Takahiro Imamura, Shinji Koganezawa
Life of this patent
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Abstract
A receiver receives an acoustic wave in an atmospheric pressure measuring apparatus. Since a variation in the intensity of an acoustic wave reflects a variation in the atmospheric pressure, the atmospheric pressure can be measured based on the intensity of the acoustic wave received at the receiver. The atmospheric pressure can in this manner easily be measured with a simplified structure.
Claims22
An atmospheric pressure measuring apparatus comprising:
- a receiver receiving an acoustic wave;
- and
- a controlling section detecting an atmospheric pressure based on intensity of at least one specific component of the acoustic wave received at the receiver.
A method of measuring an atmospheric pressure, comprising:
- receiving an acoustic wave;
- and
- detecting the atmospheric pressure based on intensity of at least one specific component of the acoustic wave received at the receiver.
A disk drive comprising:
- an enclosure defining an inner space;
- a sound source established in the inner space, the sound source radiating an acoustic wave;
- a receiver placed in the inner space, the receiver receiving the acoustic wave radiated from the sound source;
- and
- a controlling section detecting an atmospheric pressure based on intensity of at least one specific component of the acoustic wave received at the receiver.
A method of measuring an atmospheric pressure inside a disk drive, comprising:
- receiving an acoustic wave radiated from a sound source established in an inner spaced defined in an enclosure of a disk drive by using a receiver placed in the inner space;
- and
- detecting an atmospheric pressure inside the inner space based on intensity of at least one specific component of the acoustic wave received at the receiver.
Dependencies are inferred from the claim text.