A multimodal dust sensor, wherein arranged in succession along a first array of optical axes, the multimodal dust sensor comprises: an array of lasers; an array of collimating lenses , each of the collimating lenses arranged after a respective laser; an array of focusing lenses, each of the focusing lenses disposed opposite a respective collimating lens; and an array of probe volumes, each probe volume being a space into which dust particles enter and in which laser radiation is focused, wherein arranged in succession along a second array of optical axes, the multimodal dust sensor comprises: a first array of photodetectors; an array of dichroic mirrors, each of the dichroic mirrors arranged after a respective one of photodetectors of the first array of photodetectors; an array of dichroic filters; and a second array of photodetectors, each of the dichroic filters being followed by a respective one of photodetectors of the second array of photodetectors, wherein the multimodal dust sensor further comprises a beam splitter disposed between the array of dichroic filters and the array of dichroic mirrors, and between the array of focusing lenses and the array of collimating lenses, and wherein the first and second arrays of optical axes intersect at a point located on the beam splitter and form a measurement channel. wherein arranged in succession along a first array of optical axes, the multimodal dust sensor comprises: an array of lasers; an array of collimating lenses , each of the collimating lenses arranged after a respective laser; an array of focusing lenses, each of the focusing lenses disposed opposite a respective collimating lens; and an array of probe volumes, each probe volume being a space into which dust particles enter and in which laser radiation is focused, an array of lasers; an array of collimating lenses , each of the collimating lenses arranged after a respective laser; an array of focusing lenses, each of the focusing lenses disposed opposite a respective collimating lens; and an array of probe volumes, each probe volume being a space into which dust particles enter and in which laser radiation is focused, wherein arranged in succession along a second array of optical axes, the multimodal dust sensor comprises: a first array of photodetectors; an array of dichroic mirrors, each of the dichroic mirrors arranged after a respective one of photodetectors of the first array of photodetectors; an array of dichroic filters; and a second array of photodetectors, each of the dichroic filters being followed by a respective one of photodetectors of the second array of photodetectors, a first array of photodetectors; an array of dichroic mirrors, each of the dichroic mirrors arranged after a respective one of photodetectors of the first array of photodetectors; an array of dichroic filters; and a second array of photodetectors, each of the dichroic filters being followed by a respective one of photodetectors of the second array of photodetectors, wherein the multimodal dust sensor further comprises a beam splitter disposed between the array of dichroic filters and the array of dichroic mirrors, and between the array of focusing lenses and the array of collimating lenses, and wherein the first and second arrays of optical axes intersect at a point located on the beam splitter and form a measurement channel. <EOS>