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Phone
18049952031/18017806506
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Address
3rd Floor, Building 79, Lane 4855 Guangfulin Road, Songjiang District, Shanghai (Daye Territory)
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Shanghai Bangwo Instrument Equipment Co., Ltd
Hangzhou Aihua Sound Level Meter Automatic Calibration System
NegotiableUpdate on 03/02
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Overview
Hangzhou Aihua Sound Level Meter Automatic Calibration System
Product Details
The automatic calibration device for sound level meters is a calibration device independently developed by our company for sound level meters, noise level meters, analyzers, and sound calibrators. It can be used for JJG 188-2017 sound level meters, JJG 188-2002 sound level meters, JJG 778-2005 noise statistical analyzers, JJG 980-2003 personal sound exposure meters, and JJG 176-2005 sound calibrators. It has been widely used in our company's production process and factory inspection, with a cumulative calibration of more than 50000 instruments. It has the advantages of high cost-effectiveness and easy operation.
1. Schematic diagram of automatic calibration system for sound level meter
1.1 Schematic diagram of electrical signal testing connection
1.2Schematic diagram of low-frequency sound signal verification connection
1.3. Schematic diagram of free field high-frequency sound signal verification connection
1.4 Schematic diagram of electrical signal verification (video verification) connection
TECHNICAL INDEX
|
Serial Number |
Equipment name |
Main indicators or functions |
quantity |
standard terms |
|
1 |
AWA6021Type sound calibrator |
Level 1 calibrator, with two frequency points of 250Hz and 1kHz |
1 |
7.1.3a |
|
2 |
40AU laboratory standard microphone
|
laboratory standard microphone |
1 |
7.1.3b |
|
3 |
AWA14403/AWA14404 working standard microphone
|
Working standard microphone |
2 |
|
|
4 |
AWA1651 Signal Generator
|
Sine wave, burst sound, precision attenuator |
1 |
7.1.3c，f，g |
|
5 |
AWA6290L multi-channel signal analyzer (two channels are sufficient)
|
Two channels, sound level and voltage measurement, including 1/3 OCT analysis software |
1 |
7.1.3d |
|
6 |
AWA14600E preamplifier
|
Can apply 200V polarization voltage |
2 |
7.1.3e |
|
7 |
AWA5511 sound source
|
200Hz~20kHz (1 meter,>94dB) |
1 |
7.1.3h |
|
8 |
AWA5871 power amplifier
|
10Hz-20kHz, 20W power output |
2 |
7.1.3i |
|
9 |
AWA188 type soundproof box
|
Test fixture, high-definition camera |
1 |
7.1.3j |
|
10 |
AWA6153S+type low-frequency coupling cavity
|
10Hz～400Hz, Total loss value less than 0.1% |
1 |
7.1.3k |
|
11 |
Sound level meter calibration platform software
|
Control other instruments to automatically test, save measurement results, and generate calibration certificates |
1 |
|
|
12 |
Voltage stabilizing power supply MCH-305B
|
Provide power to the tested instrument |
1 |
|
|
13 |
Video verification platform |
Used for electrical signal video recognition verification |
1 |
Video verification function configuration |
|
14 |
Computer DELL |
Control the sound field, monitor, and write certificates |
1 |
|
|
15 |
1m extension cable |
BNC to BNC |
2 |
|
|
16 |
RS-232 serial port isolation protector (MWE232-B) |
|
1 |
|
|
17 |
RS-232 serial port isolation protector (MWE232-C) |
|
1 |
|
|
18 |
5-meter extension cable |
LEMO to LEMO, compatible with AWA14600E |
2 |
|
|
19 |
AWA8534 Electrical Signal Adapter 20pF |
Used for verifying sound level meters |
2 |
|
|
20 |
|
1/2 'internal thread to 1/4' internal thread |
2 |
|
|
21 |
AWA8531 adapter |
Calibration for 1/2 'microphone |
1 |
|
|
22 |
AWA8532 adapter |
Used for calibrating 1/4 'microphones |
2 |
|
|
23 |
AWA8736Password lock cable (U to serial port cable) |
Expand two serial ports for the computer to control the signal source and the tested instrument |
2 |
|
|
24 |
AWA8760 type connecting wire |
Connected to AWA5688/6228+multifunctional sound level meter |
4 |
|
|
25 |
DB9-RJ45 printer connection cable |
Connected to AWA5636/5661 sound level meter |
2 |
|
|
26 |
Square USB cable |
Connect the camera |
1 |
Video verification function configuration |
|
27 |
1m connecting wire |
5V external power supply(USBopening) |
1 |
|
|
28 |
USB extension cable |
3m |
2 |
|
|
29 |
Serial port extension cable |
3~5m， Installed inside the soundproof box |
1 |
|
|
30 |
workbenches |
|
1 |
|
|
31 |
Cabinet |
|
1 |
|
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