CN201780162U - Multichannel noise signal acquisition device - Google Patents
Multichannel noise signal acquisition device Download PDFInfo
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- CN201780162U CN201780162U CN2010202314212U CN201020231421U CN201780162U CN 201780162 U CN201780162 U CN 201780162U CN 2010202314212 U CN2010202314212 U CN 2010202314212U CN 201020231421 U CN201020231421 U CN 201020231421U CN 201780162 U CN201780162 U CN 201780162U
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- data acquisition
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Abstract
A multichannel noise signal acquisition device is characterized by comprising at least two microphones, a signal conditioner, a data acquisition device and a data acquisition terminal. The microphones are respectively connected with the signal conditioner, noise signals received by the microphones are preprocessed by the signal conditioner and then transmitted to the data acquisition device, received analog signals are converted into binary signals through the data acquisition device, and the binary signals can be read by a computer and then are transmitted to the data acquisition terminal connected with the data acquisition device. The multifunctional noise signal acquisition device is simple in structure and fine in signal receiving effect, has a guaranteed data acquisition function, has the advantages of small volume, low cost, fine stability and the like, and can realize multichannel acquisition of noise signals conveniently and provide experimental means for noise signal process.
Description
Technical field
The present utility model relates to a kind of signal pickup assembly, relates in particular to a kind of multi-channel noise signal pickup assembly.
Background technology
Vibration and noise are topmost two kinds of tested objects in the test.Along with growth in the living standard, people are also more and more higher to the requirement of comfort level.Thereby various vibration noise surveying instruments and equipment have been produced.The inherent characteristic of noise makes measuring equipment that its inherent characteristics be arranged, as: the sample frequency height of collecting device.Though noise collecting device in the market is effective, cost height, volume are big, are unsuitable for general user's use, also are inconvenient to carry, and are not easy secondary development.
The utility model content
The purpose of this utility model is to provide a kind of multi-channel noise signal pickup assembly, can gather side by side noise signal in real time, with overcome present noise harvester cost height, price is expensive and shortcoming such as poor practicability.
The technical scheme that the utility model provides is specially:
A kind of multi-channel noise signal pickup assembly comprises plural microphone, signal conditioner, data collector and data collection station.Microphone is connected to signal conditioner, after the noise signal pre-service (as: signal amplification) of signal conditioner with microphone acceptance, pass to data collector, the binary signal that data collector becomes computing machine to read to the analog signal conversion that receives, and send coupled data collection station to.
Signal conditioner is also powered to the sound sensor device, also is the intermediate equipment that connects front end sensors and Back end data collecting device.
Data collection station is a computing machine, and signal acquisition process software wherein is installed.
The beneficial effect that technical solutions of the utility model realize:
The disclosed a kind of multi-channel noise signal pickup assembly of the utility model comprises plural microphone, signal conditioner, data collector and data collection station.The utility model is simple in structure, and the signal acceptable effect is good, when guaranteeing data acquisition function, has advantages such as volume is little, cost is low, good stability, and it can easily be to the noise signal multichannel collecting, and processing provides laboratory facilities to noise signal.
Description of drawings
Fig. 1 is the utility model multi-channel noise signal pickup assembly principle schematic.
Embodiment
Describe the technical solution of the utility model in detail below in conjunction with accompanying drawing.
As shown in Figure 1, the utility model multi-channel noise signal pickup assembly comprises plural microphone 1, signal conditioner 2, data collector 3 and data collection station 4.
Microphone 11,12 are connected to signal conditioner 2, signal conditioner 2 is with microphone 11, after the 12 noise signal pre-service of accepting (as: signal amplification), pass to data collector 3, the binary signal that 3 pairs of analog signal conversion that receive of data collector become computing machine to read, and send coupled data collection station 4 to.
In the present embodiment, the MPA416 type array microphone that adopts microphone 1 to use Beijing Sheng Wang Acoustic-Electric (BSWA) Technology Co., Ltd. to provide, its relevant parameter is as follows: the frequency measurement scope is 20Hz-20KHz, sensitivity: 50mV/Pa, dynamic range (3% distortion): 127dB, background noise: 27dBA, power supply: ICP, operating temperature range :-0-50 ℃, operating humidity range: 0-98%RH, output interface: SMB.
In the present embodiment, the MC1016 signal conditioner that signal regulating device 2 uses Beijing Sheng Wang Acoustic-Electric (BSWA) Technology Co., Ltd. to provide, its relevant art parameter is as follows: port number: 16, input mode: NBC, the way of output: BNC and SCSI (68PIN), power supply mode: 4.0mA ICP, gain: every passage is independent, * 1 and * 10 two grades manually, or customization on request, filtering: 22.4KHz low pass or customization on request, power supply: 9V PP3 dry cell, Ni-MH battery can be filled, Ni-MH battery or 220V AC power can be filled.
In the present embodiment, the PCI1714UL data collecting card that data collector 3 uses precious wound source, Beijing Science and Technology Ltd. to provide.
In the present embodiment, data collection station 4 is a computing machine, and data acquisition software is installed on it.This software adopts the LabVIEW program development of being developed by American National instrument (NI) company to form.
Claims (2)
1. a multi-channel noise signal pickup assembly is characterized in that comprising plural microphone, signal conditioner, data collector and data collection station; Described microphone is connected to described signal conditioner, after the noise signal pre-service of described signal conditioner with described microphone acceptance, pass to described data collector, the binary signal that described data collector becomes computing machine to read to the analog signal conversion that receives, and send coupled described data collection station to.
2. multi-channel noise signal pickup assembly according to claim 1 is characterized in that described data collection station is a computing machine, wherein is equipped with signal acquisition process software.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202314212U CN201780162U (en) | 2010-06-22 | 2010-06-22 | Multichannel noise signal acquisition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202314212U CN201780162U (en) | 2010-06-22 | 2010-06-22 | Multichannel noise signal acquisition device |
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| Publication Number | Publication Date |
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| CN201780162U true CN201780162U (en) | 2011-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010202314212U Expired - Fee Related CN201780162U (en) | 2010-06-22 | 2010-06-22 | Multichannel noise signal acquisition device |
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| CN (1) | CN201780162U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853901A (en) * | 2012-09-06 | 2013-01-02 | 浙江吉利汽车研究院有限公司杭州分公司 | Device and method for testing automobile exhaust tail pipe noise |
| CN104007331A (en) * | 2013-02-21 | 2014-08-27 | 中国石油化工股份有限公司 | Apparatus and method for acquiring and analyzing well site noise |
| CN105675127A (en) * | 2012-09-06 | 2016-06-15 | 浙江吉利汽车研究院有限公司杭州分公司 | Noise testing device and testing method for automobile exhaust tail pipe |
-
2010
- 2010-06-22 CN CN2010202314212U patent/CN201780162U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853901A (en) * | 2012-09-06 | 2013-01-02 | 浙江吉利汽车研究院有限公司杭州分公司 | Device and method for testing automobile exhaust tail pipe noise |
| CN102853901B (en) * | 2012-09-06 | 2016-03-30 | 浙江吉利汽车研究院有限公司杭州分公司 | Noise testing device for automobile tail pipe and method of testing |
| CN105675127A (en) * | 2012-09-06 | 2016-06-15 | 浙江吉利汽车研究院有限公司杭州分公司 | Noise testing device and testing method for automobile exhaust tail pipe |
| CN104007331A (en) * | 2013-02-21 | 2014-08-27 | 中国石油化工股份有限公司 | Apparatus and method for acquiring and analyzing well site noise |
| CN104007331B (en) * | 2013-02-21 | 2016-09-21 | 中国石油化工股份有限公司 | Device and method for collection analysis well site noise |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110330 Termination date: 20110622 |