An Intelligent Adaptive Wireless Acoustic Digital Microphone

Abstract

The invention relates to an intelligent self-adaptive wireless acoustic digital microphone, which relates to an acoustic microphone. The microphone includes an acoustic sensing material, a cylindrical base body, a micro-signal processing system, and the acoustic sensing material is installed on the cylindrical base body. The cylindrical base body passes through the The screw port A is connected with the micro signal processing system. The micro signal processing system is equipped with a micro antenna and a screw port, which can wirelessly transmit data to the host computer through the micro antenna, and can transmit data with the host computer through a cable through the screw port B. It is a miniaturization , lightweight microphone, with self-calibration, self-acquisition data, digital output, debugging is very simple, can reduce a lot of manpower and material resources during measurement, can reduce people's labor intensity, can improve the accuracy of measurement data, and is especially suitable for on-site Operation.

Description

Technical field [0001] The present invention relates to an acoustic microphone, particularly a high speed smart radio acoustic digital microphone for multi-network testing. Background technique [0002] When testing some large sound field test, you need to simultaneously collect multi-point sound pressure, such as the hossip of the near field hologram (NAH), and the sound pressure of multiple points is tested at the same time, and a large number of acoustic microphones, ordinary acoustics The microphone, due to the cause of the process, each microphone is different, so the correction of the microphone has become very troublesome, and each of each microphone must be connected to the signal acquisition device, when the measuring point is more and the data is required to collect data. At this time, the connection is very troublesome, and the workload is very large. In addition, this microphone typically only has an analog signal output, so the signal acquisition system is high, so i...

AI Technical Summary

Problems solved by technology

[0002] In some large-scale sound field tests, it is necessary to simultaneously collect the sound pressure of multiple points. For example, the sound pressure of multiple points must be tested simultaneously on the holographic surface in near-field acoustic holography (NAH), which requires a large number of acoustic microphones. Ordinary acoustic Microphones, due to technological reasons, each microphone is different, so the calibration of the microphone becomes very troublesome. In addition, each microphone must be connected to the signal acquisition device through a cable. When there are many measuring points and synchronous data acquisition is required , then the connection becomes very troublesome and the workload is very heavy

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