3results about How to "Improve sensing accuracy" patented technology

The utility model discloses a passive wireless vibration sensing device and system, sensing device includes antenna group, the antenna group includes at least one antenna, antenna group is connected with frequency conversion device and phase modulation device, frequency conversion device is connected with phase modulation device, and phase modulation device is connected with piezoelectric device, sensing system includes read-write device, and read-write device is connected with at least one passive wireless vibration sensing device, the utility model can carry out real -time accurate monitoring to vibration under the condition of passive.

The application discloses a passive wireless sensing label with multi-axis sensing function and belongs to the technical field of sensing; the device comprises a film layer, a first antenna layer, a piezoelectric layer and a second antenna layer which are sequentially stacked from top to bottom; an RFID chip and an RFID antenna are installed in the first antenna layer; the RFID chip is in signal connection with the RFID antenna; the piezoelectric layer is in signal connection with the RFID chip; the RFID chip is connected with a sensing structure, and the sensing structure is installed on the first antenna layer or the second antenna layer; the number of the sensing structure is two, the two sensing structures are horizontally arranged on the same plane, and the two sensing structures are perpendicular to each other. The passive wireless sensing label has the advantages of convenient manufacturing, low cost, flexible size, high starting sensitivity, flexible adjustment of sensing parameters and the like.

The utility model relates to the technical field of object table, concretely is a kind of object table guiding mechanism, it mainly includes installation platform, two groups of welding assembly are installed in installation platform top surface, two groups of object table and jig are provided in installation platform upper portion, further include: guiding mechanism, guiding mechanism is set in installation platform upper portion, guiding mechanism includes the guiding frame of fixed installation in installation platform top surface, cleaning mechanism, cleaning mechanism is set in installation platform upper portion. When moving frame and fixed plate move, gear one rotates on rack, gear one drives rotating shaft and bevel gear one to rotate, bevel gear one drives bevel gear two and connecting shaft to rotate, connecting shaft drives fan blade to rotate, when fan blade moves to the upper portion of inductor, the wind force produced by fan blade rotation blows dust on the surface of inductor, ensure that inductor is not easily obstructed cover, inductor can accurately sense the position of inductive plate to improve the sensing accuracy and guiding accuracy of inductor.