PIR sensor modeling and simulating using Comsol Multiphysics and its Ray Optics Module

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PIR (Passive Infrared) sensor is the most widely used motion sensor for occupancy detection. PIR sensor outputs a voltage corresponding to the temperature change of the sensor element. PIR sensor has two detector elements connected in series with opposite polarities. This arrangement prevents triggering to an event caused by the change of background IR. PIR sensor was modelled and simulated using the Ray Optics Module and AC/DC Module with its electric circuit interface. The model includes the optics and the pulse shaping electric circuitry.


Original languageEnglish
Title of host publicationProceedings of the COMSOL Conference 2018 Lausanne
Publication statusPublished - 22 Oct 2018
MoE publication typeA4 Article in a conference publication
EventCOMSOL Conference - SwissTech Convention Center, Lausanne, Switzerland
Duration: 22 Oct 201824 Oct 2018


ConferenceCOMSOL Conference
Internet address

    Research areas

  • FEM simulation, PIR sensor, occupancy detection

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ID: 30262248