Measuring apparatus, measuring system and measuring method
AssigneeKYOCERA Corporation
InventorsTomohiro Inagaki, Yoichi Hirata
Life of this patent
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Abstract
Provided is a measuring apparatus capable of measuring a vibration amount weighted with characteristics of vibration transmission to a human ear and capable of evaluating correctly an electronic device having a vibrator. A measuring apparatus 10 configured to evaluate an electronic device 100 that transmits vibration sound to a human ear by pressing a vibrator 102 held in a housing 101 thereto, including an ear simulator 50 that mimics a human ear, and a vibration detection unit 55 disposed on a periphery 52 of an artificial ear canal 53 formed in the ear simulator 50.
Claims55
A measuring system configured to evaluate an electronic device that transmits sound based on vibration of a vibrator to a user by pressing the vibrator held in a housing to a human ear, comprising:
- an ear simulator that mimics a human ear;
- a vibration detection unit disposed on a periphery of an artificial ear canal formed in the ear simulator, wherein the artificial ear canal includes a top portion, a bottom portion and a side portion, and wherein the vibration detection unit is disposed at the side portion and not directly exposed to the artificial ear canal;
- a sound pressure measuring unit that measures sound pressure of sound propagated through the artificial ear canal;
- a phase adjusting unit that is configured to relatively adjust phase of output from the vibration detection unit and phase of output from the sound pressure measuring unit;
- and
- a frequency analysis unit.
A measuring method in which, in order to evaluate an electronic device that transmits sound based on vibration of a vibrator to a user by pressing the vibrator held in a housing to a human ear, including steps of:
- detecting vibration by a vibration detection unit, the vibration being caused by the vibrator and transmitting through a periphery of an artificial ear canal formed in an ear simulator by pressing the vibrator to the ear simulator that mimics a human ear, wherein the artificial ear canal includes a top portion, a bottom portion and a side portion, and wherein the vibration detection unit is disposed at the side portion and not directly exposed to the artificial ear canal;
- measuring sound pressure of sound propagated through the artificial ear canal by a sound pressure measuring unit as well;
- and
- relatively adjusting phase of output from the vibration detection unit and phase of output from the sound pressure measuring unit by a phase adjusting unit;
- and
- performing a frequency analysis using at least one output of the phase adjusting unit by a frequency analysis unit.
A measuring system configured to evaluate an electronic device that transmits sound based on vibration of a vibrator to a user by pressing the vibrator held in a housing to a human ear, comprising:
- an ear simulator that mimics a human ear;
- a vibration detection unit disposed on a periphery of an artificial ear canal formed in the ear simulator, wherein the artificial ear canal includes a top portion, a bottom portion and a side portion, and wherein the vibration detection unit is disposed at the side portion and not directly exposed to the artificial ear canal;
- a sound pressure measuring unit that measures sound pressure of sound propagated through the artificial ear canal;
- and
- a phase adjusting unit that can relatively adjust output phase of the vibration detection unit and output phase of the sound pressure measuring unit.
A measuring method with which, in order to evaluate an electronic device that transmits sound based on vibration of a vibrator to a user by pressing the vibrator held in a housing to a human ear, including steps of:
- detecting vibration by a vibration detection unit, the vibration caused by the vibrator and transmitting through a periphery of an artificial ear canal formed in an ear simulator by pressing the vibrator to the ear simulator that mimics a human ear, wherein the artificial ear canal includes a top portion, a bottom portion and a side portion, and wherein the vibration detection unit is disposed at the side portion and not directly exposed to the artificial ear canal;
- measuring sound pressure of sound propagated through the artificial ear canal by a sound pressure measuring unit as well;
- and
- relatively adjusting phase of output from the vibration detection unit and phase of output from the sound pressure measuring unit by a phase adjusting unit.
Dependencies are inferred from the claim text.