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AWA6256B+型環境振動分析儀采用數字信號處理技術,能同時測量全身垂向(W.B.z)計權振級(也是環境振級)、全身水平(W.B.x-y)計權振級,以及不計權振動加速度級。滿足GB/T10071-1988 《環境振動測量方法》標準對
振動測量儀器的要求,也符合ISO 8041:1990《人體對振動的響應——測量儀器》。
AWA6256B+型是AWA6256B型的換代產品,與AWA6256B型環境振動分析儀相比,主要是頻率計權、檢波和時間計權是通過數字信號處理技術實現,因此穩定性更好,動態范圍更大,而且以后可升級為符合正在修訂中的新環境振動國家標準要求(按ISO 8041:
2005制訂),外形也更加美觀。
2.主要性能指標:
1) 符合標準:GB/T 10071-1988和ISO 8041:1990
2) 加速度傳感器:靈敏度:40 mV/m·s-2,質量:550 g
3) 頻率范圍:1 Hz ~ 80 Hz
4) 頻率計權:并行 W.B.z(全身垂向)、W.B.x-y
(全身水平)、以及平直頻率響應
5) 時間平均方式:并行指數平均(時間常數1 s, 8 s)、
線性平均
6) 測量范圍: 48 dB~158 dB(以10-6 m/s2為參考)
7) 量程:48 ~ 138 dB、58 ~ 148 dB、68 ~ 158 dB
8) 主要測量指標:并行瞬時VL、VLmax、VLmin、
VLeq、VL5、VL10、VL50、VL90、VL95、SD
9) 顯示器:240×160點陣LCD顯示,有EL背光,
分辨率:0.01dB
10) 積分測量時間:1 s到24 h分檔或任意設定
11) 線性范圍:大于90 dB
12) 統計采樣時間間隔:0.1 s
13) 數據存貯:64 kB的FLASH,可以保存128組測量結果
14) 輸出接口:RS 232接口,可接微型打印機打印測量結果,也可接PC機送出測量結果
15) 內部日歷時鐘:誤差小于1分鐘每月
16) 儀器內部自帶符合GB 2312標準的漢字庫,可在儀器上輸入中英文測點名
17) 工作電源:4節LR 6 堿性電池或可充電電池,可連續使用8小時以上,也可使用5 V外接電源
18) 外形尺寸:210×90×38 (mm)
19) 質量:主機:0.5 kg,加速度傳感器:550 g
20) 工作環境: 工作溫度:-10 ℃~ 50 ℃, 存貯溫度:-20 ℃~70 ℃, 相對濕度:25 %~90 %
Type AWA6256B+ environmental vibration analyzerbased on digital signal processing technology, can simultaneously measure the body vertical (W.B.z)weighted vibration level (also the environmental vibration level), the systemic level (W.B.x-y) weighted vibration level, and no right of vibration acceleration level. Meet thestandard GB/T10071-1988 "method" of environmentalvibration measurement
Vibration measurement instrument requirements, also with ISO 8041:1990 "human response to vibrationmeasurement instrument --".
The AWA6256B+ type is AWA6256B type products,compared with the AWA6256B type environmentalvibration analyzer, mainly is the frequency weighting,detection and time weight is implemented by digital signal processing technology, so it has better stability, higher dynamic range, and it can be upgraded to the newnational environmental standards vibration Fu Hezheng in the amendment of the requirements (according to ISO8041:
2005 making), appearance is more beautiful.
2 main performance index:
1) standard: GB/T 10071-1988 and ISO 8041:1990
2) acceleration sensor: sensitivity: 40 mV/m · S-2, quality:550 G
3) frequency range: 1 Hz ~ 80 Hz
4) frequency weight: W.B.z (parallel body vertical), W.B.x-y
(all levels), and flat frequency response
5) time average method: parallel index average (time constant of 1 s, 8 s),
Linear average
6) measuring range: 48 dB~158 dB (with 10-6 m/s2 as a reference)
7) range: 48 ~ 138 dB, 58 ~ 148, 68 ~ 158 dB dB
8) the main measures: VL, VLmax, VLmin parallel transient,
VLeq, VL5, VL10, VL50, VL90, VL95, SD
9) display: 240 x 160 dot matrix LCD display, EL backlight,
Resolution: 0.01dB
10) integral measurement time: 1 s to 24 h tranche orarbitrarily set
The linear range of 11): more than 90 dB
12) statistical sampling time interval: 0.1 s
13) data storage: 64 kB FLASH, you can save 128 groups of measuring results
14) output interface: RS 232 interface, can be connected with a micro printer print measurement results, but also can measure the results sent PC machine
15) internal calendar clock: error is less than 1 minutes per month
16) instrument internal GB 2312 compliant Chinese characters can be input in the library, English on the instrument measuring roll
17) power supply: 4 LR 6 alkaline battery or rechargeable battery, can be more than 8 hours of continuous use, alsocan use 5 V external power supply
18) size: 210 x 90 x 38 (mm)
19) quality: host: 0.5 kg, acceleration sensor: 550 G
20) the working environment: the working temperature:-10 ℃ ~ 50 ℃, storage temperature: -20 ℃ ~70 ℃,relative humidity: 25%~90%
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