Device for measuring bed temperature of DPF carrier

The utility model discloses a device for measuring bed temperature of a DPF (diesel particulate filter) carrier, which is used for a motor vehicle and comprises a DPF shell, the DPF carrier is arranged in the DPF shell, one axial end of the DPF carrier is an air inlet end of the DPF carrier, and the other axial end of the DPF carrier is an air outlet end of the DPF carrier; a plurality of threading holes are evenly formed in the downstream end of the DPF shell in the circumferential direction. Three groups of temperature sensors are arranged in the DPF carrier, each group of temperature sensors are positioned on the same radial temperature measurement section of the DPF carrier, and each group of temperature sensors comprises a plurality of temperature sensors; the three groups of temperature sensors are arranged at intervals along the axial direction of the DPF shell; connecting wires of the temperature sensors extend out of the exhaust end of the DPF carrier, penetrate through the corresponding wire penetra