2results about How to "With self-test function" patented technology

The application discloses a kind of compatible monomer filter membrane and puncture membrane piece full-automatic membrane changer and method, filter membrane holder is installed on filtration station, monomer filter membrane automatic taking and sending mechanism includes the push rod type membrane piece separation device for pushing the single filter membrane in the lowermost part of the single filter membrane containing box to the membrane taking position and the moving device for moving the single filter membrane on the membrane taking position to the filter membrane holder, puncture membrane piece automatic feeding mechanism adopts reel-reel structure, unused puncture membrane piece is installed on puncture membrane piece supply disc, and the fresh membrane piece on puncture membrane piece supply disc is moved to the filter membrane holder on filtration station by winding shaft, and the lower part of filtration station is provided with membrane piece puncture and positioning needle, the device and method can be compatible with two consumables of monomer filter membrane and puncture membrane piece, membrane changing speed is fast and has self-checking function.

The present application relates to the field of photoelectric decoding detection, discloses a photoelectric decoding circuit with self-checking function, a detection method and a detection system, the photoelectric decoding circuit with self-checking function comprises: a plurality of light emitting tubes for emitting light signals;A plurality of light receiving tubes for one-to-one receiving the light signals emitted by the plurality of light emitting tubes;A current detection circuit for detecting the current values of the plurality of light emitting tubes and the plurality of light receiving tubes and outputting current detection signals;A processing chip for judging the normal state, short-circuit state or open-circuit state of the plurality of light emitting tubes and the plurality of light receiving tubes according to the current detection signals and outputting corresponding state signals.The present application can judge the state of each light emitting tube and light receiving tube, thereby judging the fault condition of the photoelectric meter device.