NOVELTY - The sensor has a first conductive element and a second conductive element fixed at an upper surface of an insulation layer. A first friction material layer is fixed at different position of a first friction electrode. A second friction material layer is fixed at different position of a second friction electrode. The second friction material layer detects an alternating current pulse signal. The first friction material layer is equipped with a PTFE layer or a polydimethyl siloxane layer. A space holder is equipped with an elastic rubber and a spring or elastic sheet.    USE - Self-driving photoelectric sensor.    DETAILED DESCRIPTION - The second friction material layer is selected from semiconductor material such as zinc-oxide, titanium-oxide, indium oxide, zinc sulfide, zinc selenide, zinc telluride, gallium nitride, selenium, cadmium selenide, cadmium telluride, silicon, germanium, lead selenide and tellurium. The first friction material layer is selected from insulation material and metal material. The metal material is made of gold, silver, platinum, aluminum, nickel, copper, titanium and chromium. The insulation material is made of aniline formaldehyde resin, polyformaldehyde, ethyl cellulose, polyamide nylon 11, nylon 66, polyamide and wool fabric, silk and fabric, paper, polyethylene glycol succinate, cellulose, cellulose acetate, polyethylene glycol adipate, polydiallyl phthalate, regenerated cellulose sponge, cotton and fabric, polyurethane elastomer, styrene-acrylonitrile copolymer, styrene-butadiene copolymer, wood, hard rubber, acetate, rayon, polyvinyl alcohol, polyester, polyisobutylene, polyurethane elastic sponge, polyethylene glycol terephthalate, polyvinyl butyral, butadiene-acrylonitrile copolymer, neoprene, natural rubber, polyacrylonitrile, poly bisphenol carbonate, PVC ether, polyvinylidene chloride, poly (2, 6-dimethyl poly-phenylene oxide), polystyrene, polyethylene, polypropylene, polydiphenyl propane polycarbonate, polyethylene glycol terephthalate, polyimide, PVC, poly-dimethyl siloxane, polytrifluorochloroethylene, PTFE and parylene. The first friction electrode and the second fiction electrode are made of metal, conductive oxide or conductive polymer, gold and silver or molybdenum. The first conductive element and the second conductive element are made of metal, conductive oxide or conductive polymer, indium tin oxide, gold, silver or molybdenum, hard material and soft material. An INDEPENDENT CLAIM is also included for a method for manufacturing a self-driving photoelectric sensor.    DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of a self-driving photoelectric sensor.'(Drawing includes non-English language text)'