烟度计是测定汽车排出废气中烟度的仪器。主要用于柴油机排出废气的测定。用活塞抽气泵从柴油机排气管中，按规定时间抽取一定容积的排气气体，并使之通过一定面积的滤纸，排气中的烟尘粒截留在滤纸上并使滤纸染黑。用光电测量装置测量滤纸的吸光率，该吸光率表示排气中烟度的大小。烟度计主要由活塞抽气泵、取样装置和光电测量装置组成。测量一般重复3次，求得算术平均值作为测得的烟度值。烟度值的数值范围为0-10，空白滤纸的烟度为零，全黑滤纸的烟度为10。
Continuous on-line analysis often only considers the density of the emissions (e.g mg/Nm3) In order to obtain a measureme…
Continuous emission monitoring often only considers the density of the emissions (e.g mg/Nm3) In order to obtain a measur…
The advanced electronics of the SiteGard detect the signal and present it to the operator using a modulating LED at the l…
The StakGard uses the well-proven tribo-electric effect to directly measure mass particulate concentration by sensing the…
The DCEM2100 is a dual-pass transmissometer configured for the continuous measurement of opacity and dust concentration i…
The DCEM2000 is a dual-pass transmissometer configured for the continuous measurement of opacity and dust concentration i…
The DCEM1001 Opacity Monitor is a single-pass optical device which uses visible light to measure the opacity and dust con…
The DCEM1000 Opacity Monitor is a single-pass optical device which uses visible light to measure the opacity and dust con…
GCEM4090是使用一根原地探针被设置入输送管测量在废气的没有、CO、二氧化碳和H2O集中的一台多途径单光束贝克曼气体分析仪。
GCEM4280 是一种多通道气体分析仪器，采用放置于烟道中原位探头测量烟道气体中 NO、SO2,、CO2 和 H2O的浓度。
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