CN205642605U - Multi -functional precision sound level meter - Google Patents
Multi -functional precision sound level meter Download PDFInfo
- Publication number
- CN205642605U CN205642605U CN201620360122.6U CN201620360122U CN205642605U CN 205642605 U CN205642605 U CN 205642605U CN 201620360122 U CN201620360122 U CN 201620360122U CN 205642605 U CN205642605 U CN 205642605U
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- China
- Prior art keywords
- outfan
- input
- electrically connected
- sound meter
- sound
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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The utility model discloses a multi -functional precision sound level meter, including noise meter shell and line -charging mouth, the condenser microphone is installed at the top of noise meter shell, and the preceding table wall of noise meter shell installs LED liquid crystal display, the switch key is installed to LED liquid crystal display's below, the range selection key is installed on pause key's right side, the battery is installed to the inside bottom of noise meter shell, the output of condenser microphone and preamplifier's input electric connection, preamplifier's the output and the input electric connection of attenuator, digital analog converter's output and LED liquid crystal display's input electric connection can all be noted noise and high -decibel's sound through the condenser microphone to show the sound that detects on LED liquid crystal display, make things convenient for staff's observation and record, improved precision sound level meter's practicality.
Description
Technical field
This utility model relates to sound meter technical field, is specially a kind of multifunctional accurate sound meter.
Background technology
Sound meter is most basic noise-measuring instrument, and it is a kind of electronic machine, but is different from voltage
The objective electronic instrument such as table.When acoustical signal is converted into the signal of telecommunication, human ear can be simulated sound wave is reacted
The time response of speed；Frequency is changed when low-and high-frequency is had the frequency characteristic of different sensitivity and different loudness
The strength characteristics of rate characteristic.Therefore, sound meter is the electronic machine of a kind of subjectivity.Traditional sound meter
Function is more single, and uses single-chip microcomputer as microcontroller, internal memory is little, processing speed is slow,
Precision is low, cannot meet the requirement of measurement in real time.
Utility model content
The purpose of this utility model is to provide a kind of multifunctional accurate sound meter, to solve above-mentioned background skill
The problem proposed in art.
For achieving the above object, the following technical scheme of this utility model offer: a kind of multifunctional accurate sound level
Meter, including sound meter shell and charging connection jaws, the top of described sound meter shell is provided with condenser type and passes
Sound device, and the front table wall of sound meter shell is provided with LED LCDs, described LED LCDs
Lower section power switch key is installed, the lower section of described power switch key is provided with Pause key, described time-out
The right side of key is provided with measurement range selection key, and the left side of Pause key is provided with SD card draw-in groove, described sound meter
The interior bottom portion of shell is provided with accumulator, the outfan of described condenser microphone and preamplifier
Input is electrically connected with, and the outfan of described preamplifier is electrically connected with the input of attenuator, institute
The input of the outfan and rms detector of stating attenuator is electrically connected with, described rms detector
Outfan is electrically connected with the input of logafier, at the outfan of described logafier and ARM
The input of reason device is electrically connected with, and described arm processor is electrically connected with accumulator and radiator, and ARM
The outfan of processor is electrically connected with the input of information storage unit and digital to analog converter, and described digital-to-analogue turns
The outfan of parallel operation is electrically connected with the input of LED LCDs.
Preferably, the outside of described condenser microphone is provided with Radix Saposhnikoviae sponge fan housing.
Preferably, described charging connection jaws is arranged on the lower section of sound meter shell.
Preferably, described LED LCDs be arranged above overload light.
Compared with prior art, the beneficial effects of the utility model are: this precision sound level meter scientific structure closes
Reason, easy to use efficiently；Can be by the sound of noise and high-decibel all records by condenser microphone
Get off, and the speech detected is shown in LED LCDs, facilitate the observation of staff
And record, improve the practicality of precision sound level meter；It is provided with radiator by arm processor, permissible
Make the heat produced during arm processor work disposal quickly disperse, and extend arm processor
Service life, simultaneously arm processor have with low in energy consumption, processing speed is fast, powerful, cost performance
High processor；By being inserted with SD card in SD card draw-in groove, solving calculating equivalent continuous sound level needs to account for
The problem causing low memory with a large amount of RAM, adds the statistical analysis to noise data and computing function,
Improve the multifunctionality of precision sound level meter.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is theory diagram of the present utility model.
In figure: 1 Radix Saposhnikoviae sponge fan housing, 2 condenser microphones, 3 sound meter shells, 4 Pause key, 5 amounts
Journey selects key, 6 charging connection jaws, 7 accumulator, 8SD card draw-in groove, 9 power switch keys, 10LED liquid crystal
Display screen, 11 overload lights, 12 preamplifiers, 13 attenuators, 14 rms detectors, 15
Logafier, 16ARM processor, 17 radiators, 18 information storage units, 19 digital to analog converters.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, to the technology in this utility model embodiment
Scheme is clearly and completely described, it is clear that described embodiment is only this utility model one
Divide embodiment rather than whole embodiments.Based on the embodiment in this utility model, this area is common
The every other embodiment that technical staff is obtained under not making creative work premise, broadly falls into this
The scope of utility model protection.
Referring to Fig. 1-2, this utility model provides a kind of technical scheme: a kind of multifunctional accurate sound meter,
Including sound meter shell 3 and charging connection jaws 6, the top of sound meter shell 3 is provided with condenser microphone
2, and the front table wall of sound meter shell 3 is provided with LED LCDs 10, LED LCDs 10
Lower section power switch key 9 is installed, the lower section of power switch key 9 is provided with Pause key 4, Pause key 4
Right side measurement range selection key 5 is installed, and the left side of Pause key 4 is provided with SD card draw-in groove 8, sound meter
The interior bottom portion of shell 3 is provided with accumulator 7, the outfan of condenser microphone 2 and preamplifier
The input of 12 is electrically connected with, and the outfan of preamplifier 12 electrically connects with the input of attenuator 13
Connecing, the outfan of attenuator 13 is electrically connected with the input of rms detector 14, virtual value detection
The outfan of device 14 is electrically connected with the input of logafier 15, the outfan of logafier 15
It is electrically connected with the input of arm processor 16, arm processor 16 and accumulator 7 and radiator 17
It is electrically connected with, and the outfan of arm processor 16 and information storage unit 18 and digital to analog converter 19 is defeated
Entering end to be electrically connected with, the outfan of digital to analog converter 19 is electrical with the input of LED LCDs 10
Connecting, the outside of condenser microphone 2 is provided with Radix Saposhnikoviae sponge fan housing 1, and charging connection jaws 6 is arranged on sound level
Meter shell 3 lower section, LED LCDs 10 be arranged above overload light 11.
Operation principle: turning on the power switch key 9, precision sound level meter is started working, and passes through condenser microphone
2 convert tones into the signal of telecommunication, and this signal of telecommunication by preamplifier 12 transforming impedance, makes condenser type pass again
Sound device 2 matches with attenuator 13.Through attenuator 13 and logafier 15, signal is amplified the most again
To certain amplitude, deliver in rms detector 14, by the information of transmission through arm processor 16
Process, LED LCDs 10 demonstrates the numerical value of noise sound level, and passes through information storage unit
The information of noise is stored by 18, it is to avoid lose.
Embodiment the most of the present utility model, for the ordinary skill people of this area
For Yuan, it is possible to understand that can be real to these in the case of without departing from principle of the present utility model and spirit
Executing example to carry out multiple change, revise, replace and modification, scope of the present utility model is by claims
And equivalent limits.
Claims (4)
1. a multifunctional accurate sound meter, including sound meter shell (3) and charging connection jaws (6),
It is characterized in that: the top of described sound meter shell (3) is provided with condenser microphone (2), and sound
The front table wall of level meter shell (3) is provided with LED LCDs (10), described LED LCDs
(10) lower section is provided with power switch key (9), and the lower section of described power switch key (9) is provided with
Pause key (4), the right side of described Pause key (4) is provided with measurement range selection key (5), and Pause key (4)
Left side SD card draw-in groove (8) is installed, the interior bottom portion of described sound meter shell (3) is provided with electric power storage
Pond (7), the outfan of described condenser microphone (2) is electric with the input of preamplifier (12)
Property connect, the input of the outfan of described preamplifier (12) and attenuator (13) is electrically connected with,
The outfan of described attenuator (13) is electrically connected with the input of rms detector (14), described
The outfan of rms detector (14) is electrically connected with the input of logafier (15), described
The outfan of logafier (15) is electrically connected with the input of arm processor (16), described ARM
Processor (16) is electrically connected with accumulator (7) and radiator (17), and arm processor (16)
Outfan and information storage unit (18) and the input electric connection of digital to analog converter (19), described
The outfan of digital to analog converter (19) is electrically connected with the input of LED LCDs (10).
A kind of multifunctional accurate sound meter the most according to claim 1, it is characterised in that: described electricity
The outside of appearance formula microphone (2) is provided with Radix Saposhnikoviae sponge fan housing (1).
A kind of multifunctional accurate sound meter the most according to claim 1, it is characterised in that fill described in:
Electrical connection mouth (6) is arranged on the lower section of sound meter shell (3).
A kind of multifunctional accurate sound meter the most according to claim 1, it is characterised in that: described LED
LCDs (10) be arranged above overload light (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620360122.6U CN205642605U (en) | 2016-04-26 | 2016-04-26 | Multi -functional precision sound level meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620360122.6U CN205642605U (en) | 2016-04-26 | 2016-04-26 | Multi -functional precision sound level meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205642605U true CN205642605U (en) | 2016-10-12 |
Family
ID=57063092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620360122.6U Expired - Fee Related CN205642605U (en) | 2016-04-26 | 2016-04-26 | Multi -functional precision sound level meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205642605U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020256567A1 (en) | 2019-06-21 | 2020-12-24 | Sansoglys As | Device and method for measuring and visualization of sound level |
| WO2022093039A1 (en) | 2020-10-29 | 2022-05-05 | Sansoglys As | Device and method for monitoring and visualizing sound level |
-
2016
- 2016-04-26 CN CN201620360122.6U patent/CN205642605U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020256567A1 (en) | 2019-06-21 | 2020-12-24 | Sansoglys As | Device and method for measuring and visualization of sound level |
| WO2022093039A1 (en) | 2020-10-29 | 2022-05-05 | Sansoglys As | Device and method for monitoring and visualizing sound level |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161012 Termination date: 20170426 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |