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FQD-201型半自动烟度计,是由温州仪器仪表厂研制,并通过技术鉴定的新产品。它与FQD-102型烟度计的区别在于:滤纸采用卷带式,由伺服电机传动;具有同步机构,抽气泵启动可与车辆油门踏板同步;采样自动进行。所以可减轻劳动强度,并使操作更加方便。该仪器主要用于测量车用柴油机及柴油汽车的排气烟度。它不但可于稳定工况下进行柴油机全负荷烟度测量,更可作为柴油汽车自由加速烟度的测量,为了考核FQD-201型半自动烟度计的测试性能,作者将该仪器分别与西德Bosch烟度计和日本DSM-20A型自动烟度计进行性能对比。今将与Bosch烟度计对比结果介绍如下:
FQD-201-type semi-automatic smoke meter, developed by the Wenzhou Instrument Factory, and passed the technical appraisal of new products. It is different from the FQD-102 smoke meter in that the filter paper is wound by a servo motor and has a synchronization mechanism. The suction pump can be started synchronously with the accelerator pedal of the vehicle. The sampling is performed automatically. So it can reduce the labor intensity and make the operation more convenient. The instrument is mainly used to measure the exhaust of vehicle diesel and diesel vehicles smoke. It not only can carry on the full load smoke degree measurement of diesel engine under the steady working condition, but also can be used as the free acceleration smoke degree measurement of the diesel automobile. In order to test the test performance of the FQD-201 semi-automatic smoke meter, Bosch smoke meter and Japan DSM-20A automatic smoke meter for performance comparison. The results of this comparison with Bosch smoke meters are as follows: