Device for detecting noise source direction
A detection device and a technology for detecting noise, which are applied in measuring devices, measuring ultrasonic/sonic/infrasonic waves, surveying and mapping, and navigation, etc., which can solve the problem of public reports of undiscovered noise source detection devices and detection and sensing methods that cannot reflect the real situation of environmental noise , Noise influence and other problems, to achieve the effect of simple structure, high accuracy and good stability
Inactive Publication Date: 2010-08-11
YUNNAN UNIV
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Problems solved by technology
[0003] Noise monitoring is greatly affected by the direction of the noise source, and attention must be paid to the direction of the noise source during monitoring. The measurement results of a single detection and sensing method cannot reflect the real situation of environmental noise
[0004] Through literature search, do not find the relevant public reports of the noise sound source detection device identical with the technical scheme of the present invention
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[0019] The noise sound source direction detection device of the present invention is composed of a compass 1 placed on the upper part of the column, a central column 2 placed in the middle of the column, and a signal conditioning circuit board 8 placed at the lower part of the column; wherein:
[0020] a. The outer ring of compass 1 is fixed with a mark point used to record the direction during measurement;
[0021] b. There is a resonant cavity 4 formed between the column body and the center column 2 with a sound insulation sheet 3 to divide it into 4 or 6 fan-shaped spaces, and there are 4 or 6 directions of noise sound guide holes 5 on the outer surface of the column. ; A small hole 6 is opened on the middle column 2, and a glue inherent sound sensor 7 is used on the small hole 6;
[0022] c. The signal conditioning circuit board 8 is connected to the wire of the sound sensor 7 through the small hole 6 on the center column.
[0023] When in use: place the detection device ...
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The invention relates to a detection device capable of detecting noise source direction, which belongs to field of environment quality monitoring technology. The device includes a compass (1) arranged at an upper portion of a column, a middle column (2) arranged at middle portion of the column and a signal conditioning circuit board (8) arranged at lower portion of the column; wherein, a. sign points for recording direction when using are fixed on outer ring of the compass (1); b. a resonator (4) which is divided into 4 or 6 fan-shaped spaces by sound insulation sheets (3) is arranged betweenthe column and the middle column (2), noise guide holes (5) are arranged on external surface of the column; small holes (6) are arranged on the middle column (2), sound sensors (7) are fixed on the small holes (6); and c. the signal conditioning circuit board (8) is connected with lead of the sound sensors (7). The invention has advantages of simple structure, noise source direction distinguishing capability, good noise measurement stability and high monitoring accuracy. The invention is especially adapted for detection of 4 or 6 noise source directions.
Description
Technical field: [0001] The invention relates to a detection device capable of detecting the direction of a noise sound source, which belongs to the technical field of environmental quality monitoring. Background technique: [0002] In the process of monitoring environmental noise, due to many noise sources, complex reflection and refraction, and inconsistent monitoring requirements, it is difficult to analyze and evaluate the monitoring results. At present, in addition to meeting the measurement (collection) requirements, noise monitors at home and abroad have made great improvements in the following aspects: 1. High precision and comprehensive, such as noise monitor analyzers that can measure sound decibels and frequencies at the same time. 2. Long-term: For example, a noise monitor for long-term monitoring of the environmental noise change process can be fixed and installed. 3. Convenience: easy to carry, accurate measurement and reliable data. The noise monitoring anal...
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IPC IPC(8): G01C17/00G01H17/00
Inventor 施心陵张榆锋陈建华张俊华彭述清蒋薇陈娜
Owner YUNNAN UNIV