Particulate matter detecting device

摘要

The particulate matter detecting device 100 of the present invention includes: a sensor element 10 having a plate-shaped element substrate 11, at least one pair of measurement electrodes 12 arranged on one end face 16 of this element substrate 11, a heater electrode 13 arranged on either of end faces or inside of the element substrate 11, and a plurality of lead terminals 14 arranged on the other end face 17 of the element substrate 11 and electrically connected to each of the measurement electrodes 12 and the heater electrode 13; and an outer sheath body 20 having a columnar barrel portion 21 and a barrel-portion end face 22 arranged on one end face 26 of the barrel portion 21, in which the sensor element 10 is arranged in the barrel portion 21 of the outer sheath body 20 such that the pair of measurement electrodes 12 is exposed from an open frontal area 23 of the barrel-portion end face 22.