Split type lens and split type static linear array infrared horizon sensor

The invention relates to a split type static linear array infrared horizon sensor which comprises at least one group of split type lens and split type installation base matched with each other. In the split type lens, an imaging light path is connected with a linear array detector which is connected with a multi-path selector, the multi-path selector is connected with a preamplifier and an FPGA (Field Programmable Gate Array) chip respectively, the preamplifier is connected with an analog-digital converter and the FPGA chip respectively, the analog-digital converter is connected with the preamplifier and the FPGA chip respectively, the FPGA chip is used for respectively generating control signals of the multi-path selector, the preamplifier and the analog-digital converter, performing signal processing on transmitted digital signals and then transmitting the digital signals to a CAN (Controller Area Network) interface chip, and the CAN interface chip is connected with a CAN bus through a CAN bus interface and used for transmitting the signals which are processed by the FPGA chip to the back-end digital processing part through the CAN bus. According to the split type static linear array infrared horizon sensor, the degree of generalization of the infrared horizon sensor is increased, the development process is simplified, and the project cost is saved.