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我国煤矿浮游粉尘浓度的测量一般采用粉尘采样器和快速测尘仪.仪器在试制过程中,在出厂前都进行了测量精度的试验.使用一段时间之后,还要定期对仪器进行校验,以保证粉尘浓度的测量精度.仪器本身的测量误差(测量精度),并不一定是煤矿浮游粉尘浓度的测量误差.例如KBC型防爆粉尘测量仪,是粉尘采样器的一种,它给出的测量误差是用该仪器进行粉尘采样时的流量误差,而不是粉尘浓度的测量误差;又如ACH—1型呼吸性粉尘测量仪给出的测量误差,是在粉尘风洞中,同计重粉尘采样器对照试验给出的误差.下面讨论不同情况的误差.
China’s coal mine dust concentration measurement of the general use of dust and rapid dust sampler dust sampler in the trial process, the factory have carried out the measurement accuracy of the test.Use for a period of time, but also on a regular basis to check the instrument to To ensure the measurement accuracy of dust concentration.The measurement error (measurement accuracy) of the instrument itself is not necessarily the measurement error of coal mine float dust concentration.For example, KBC-type explosion-proof dust measurement instrument is a kind of dust sampler, it gives the measurement The error is the flow error when the instrument is used for dust sampling instead of the measurement error of the dust concentration. For another example, the measurement error given by the ACH-1 respirator dust gauge is in the dust wind tunnel, The error given by the control experiment is discussed below.