Installation and method for acoustic measurement with marker microphone in space
First Claim
1. An acoustic measurement installation, characterized in that it comprises:
- acoustic measurement instrumentation (3) comprising in particular an acoustic measurement antenna (4) fitted with at least one microphone (5);
a positioning system (11) for positioning the antenna (4) by ultrasound, the positioning system comprising;
at least one ultrasound emitter (12) mounted on the antenna at a known distance relative to the microphone;
and an ultrasound receiver base (14) for receiving the signals emitted by each emitter and adapted to determine the position of each emitter in three dimensions;
and a control unit (16) for controlling the positioning system (11) for positioning the antenna (4) and the acoustic measurement instrumentation (3), the control system being adapted during a first stage to cause each emitter (12) to emit in succession in order to determine the position of the antenna in three dimensions, and during a second stage to cause the microphones (5) to perform acquisition in order to implement acoustic measurement using the measurement instrumentation.
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Accused Products
Abstract
An acoustic measurement installation including acoustic measurement instrumentation, in particular an acoustic measurement antenna fitted with at least one microphone; a positioning system for positioning the antenna by ultrasound and including at least one ultrasound emitter mounted on the antenna at a known distance relative to the microphone and an ultrasound receiver base for receiving the signals emitted by each emitter and adapted to determine the position of each emitter; and a control unit for controlling the positioning system for positioning the antenna and the acoustic measurement instrumentation. The control system is adapted during a first stage to cause each emitter to emit in succession in order to determine the position of the antenna, and during a second stage to cause the microphones to perform acquisition in order to implement acoustic measurement using the measurement instrumentation.
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Citations
9 Claims
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1. An acoustic measurement installation, characterized in that it comprises:
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acoustic measurement instrumentation (3) comprising in particular an acoustic measurement antenna (4) fitted with at least one microphone (5); a positioning system (11) for positioning the antenna (4) by ultrasound, the positioning system comprising; at least one ultrasound emitter (12) mounted on the antenna at a known distance relative to the microphone; and an ultrasound receiver base (14) for receiving the signals emitted by each emitter and adapted to determine the position of each emitter in three dimensions; and a control unit (16) for controlling the positioning system (11) for positioning the antenna (4) and the acoustic measurement instrumentation (3), the control system being adapted during a first stage to cause each emitter (12) to emit in succession in order to determine the position of the antenna in three dimensions, and during a second stage to cause the microphones (5) to perform acquisition in order to implement acoustic measurement using the measurement instrumentation. - View Dependent Claims (2, 3, 4, 5)
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6. A method of acoustically measuring a sound source, the method being characterized in that it comprises the following steps:
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fitting an acoustic measurement antenna (4) comprising at least one microphone (5) with at least one ultrasound emitter (12) mounted at a known distance from the microphone (5); placing the acoustic measurement antenna (4) in a position that is stationary relative to the sound source; placing an ultrasound receiver base (14) to face the antenna (4), the receiver base being adapted to receive an ultrasound signal emitted by the ultrasound emitter (12) and to determine the position of the emitter (12); causing each ultrasound emitter (12) to emit in succession so as to enable the ultrasound receiver base (14) to determine the position of each emitter (12) and consequently of each microphone (5); and after the end of the stage of causing all of the ultrasound emitters (12) to emit, controlling the microphones (5) to operate in acquisition so as to perform the acoustic measurement of the sound source. - View Dependent Claims (7, 8, 9)
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Specification