3results about How to "Same polarity" patented technology

The invention provides a liquid floated gyroscope signal conversion circuit, conversion device and conditioning conversion method, and the conversion circuit comprises a differential amplification circuit, a phase-sensitive demodulation circuit, a DC amplification filter circuit, an AC output circuit, an anti-reverse connection filter circuit and a secondary power supply circuit. The phase-sensitive demodulation circuit and the direct-current amplification filter circuit are used for performing phase demodulation and conditioning processing on the gyro output signal, outputting a direct-current output signal which is used for measurement of signal acquisition equipment and has small scale factor discreteness, independently performing voltage following processing on the gyro output signal, and outputting an alternating-current output signal; the alternating current signal and the direct current signal are output in parallel and do not influence each other, so that the output signal of the gyroscope body is truly restored, the signal output quality is improved, and the testing efficiency of measuring the angular rate of rotation of the carrier along the gyroscope sensitive axial direction by applying the liquid floated gyroscope is greatly improved.

The application provides a polymethyl methacrylate product and a preparation method thereof. The preparation method of the polymethyl methacrylate product comprises the following steps: S1. mixing a resin matrix, a toughening agent, an antioxidant and a light stabilizer to obtain a mixture; the resin matrix comprises a polymethyl methacrylate resin; the toughening agent comprises a core-shell structure toughening agent and a polyester-based toughening agent; the core-shell structure toughening agent comprises a core and a shell layer; the core comprises polybutyl acrylate, and the shell layer comprises polymethyl methacrylate; S2. melt blending, extruding and granulating the mixture, and drying, injection molding, cooling and annealing. In the application, the core-shell structure toughening agent and the polyester-based toughening agent can synergistically improve the toughening effect.

The utility model discloses a food processor, including cup body and can cover on cup lid of cup body, wherein, the cup body is provided with magnetic trigger switch, the cup lid is provided with a first magnet, when the cup lid covers on the cup body, the first magnet acts on the magnetic trigger switch, and the magnetic trigger switch is closed. Through setting magnetic trigger switch on cup body, the cup lid is provided with first magnet, thereby bring at least following beneficial effect: through magnetic force drive, cup body can be completely sealed in the position of setting magnetic trigger switch, need not expose to outside, further put an end to the security risk of water inlet.