Particulate matter detection device

摘要

There is disclosed a particulate matter detection device having a high measurement sensitivity. A particulate matter detection device 100 of the present invention includes a plate-like element base material 11, and a pair of measurement electrodes 12a and 12b arranged in the element base material 11, each of the measurement electrodes 12a and 12b is a combteeth-like electrode including a plurality of planarly arranged combteeth portions 13, and a comb spine portion 14 which connects the plurality of combteeth portions 13 of each of the measurement electrodes 12a and 12b to one another at one end of each of the plurality of combteeth portions, the combteeth portions 13 of the measurement electrodes 12a and 12b are arranged to engage with each other with a space being left therebetween, and the comb spine portion 14 of at least one of the measurement electrodes 12 is covered with a comb spine covering portion 15 made of a dielectric material. The particulate matter detection device 100 allows a particulate matter to adhere to and around the pair of measurement electrodes 12a and 12b, and measured a change of electric characteristics between the pair of measurement electrodes 12a and 12b, to detect the particulate matter.