100results about How to "Accurately represent the state of motion" patented technology

The invention discloses a turntable sensing element with unevenly distributed magnetic fluxes of magnetic blocks, belongs to the technical field of providing signals by magnetic induction, and particularly relates to a technology for carrying out multi-point magnetic induction to provide control signals on a rotating component. A plurality of permanent magnet blocks which are distributed in a ring are fixedly arranged on a rotating plate; the magnetic fluxes of at least two permanent magnet blocks are different; the magnetic polarities of the adjacent permanent magnet blocks are opposite at one side of the rotating plate, namely the magnetic polarity distribution mode of all permanent magnet blocks at one side of the rotating plate is an N pole, an S pole, the N pole ...; and halls on the fixing plate are arranged at the positions near the permanent magnet blocks. The turntable sensing element has the advantages that the halls can obtain rectangular wave signals by an opposite distribution mode of the magnetic polarities NS of the adjacent permanent magnet blocks; the signals can be conveniently subjected to digital treatment, the rectangular wave signals can present the positions of the permanent magnet blocks on the rotating plate by difference of the magnetic fluxes, and uses of different rectangular waves are determined.

The invention discloses a sensing element with non-uniform distribution of multiple magnetic block positions and magnetic flux in a casing and belongs to a technology of providing a control signal by multi-point magnetic induction. Permanent magnet blocks and a Hall are arranged in an inner hollow casing formed by embedding a rotary disk with a fixed disk; a plurality of permanent magnet blocks which are circularly distributed are fixedly arranged on the rotary disk; the permanent magnet blocks are different in space and magnetic flux; magnetic polarities of adjacent permanent magnets on a certain surface of the rotary disk are opposite, i.e., the magnet polarity distribution mode of all permanent magnet blocks on the certain surface is N pole, S pole, N pole and the like; and the Hall on the fixed disk is arranged at a position close to the permanent magnet block. The sensing element has the advantages that the magnetic polarities of adjacent permanent magnets are in an NS opposite distribution mode, so that the Hall can acquire a rectangular wave signal which is conveniently and digitally processed; by using the characteristics that the spaces and the magnetic fluxes are respectively different, the rectangular wave signal can express the position of the permanent magnet blocks on the rotary disk and determine purposes of different rectangular waves; and a relative position between the permanent magnet blocks and the Hall is fixed, and thus the reliability in signal output is realized.

A moped provided with a sensor with unevenly distributed positions of magnetic blocks on a motor casing disclosed by the invention is an electric moped for providing a power signal by multi-point magnetic induction. The sensor comprises a sensing element, a power model processor, a digital-analogue converter and an operational amplifier which are orderly connected, wherein a plurality of adjacent permanent magnet blocks of which the magnetic polarities are opposite are fixedly arranged on the motor casing as the sensing element; the distances between the permanent magnet blocks are different; a hall of the sensing element is arranged on a frame near the permanent magnet blocks; and the operational amplifier is connected with a motor controller. The moped has the advantages that the hall can obtain a rectangular wave signal, the sensor conveniently outputs an artificially set power model via digital treatment, and a power starting point, a finishing point and force are reasonable, so that a person and a machine can be matched and the electricity is saved.

A sensor having multiple magnetic blocks of adjustable positions in a housing, comprising, sequentially connected, a sensing element, a power-assist model processor (21), a digital-to-analog converter (27), and an operational amplifier (28). The sensing element comprises permanent magnet blocks (2) and a Hall element (3) arranged within a cavity fitted together by a rotating disk (1) and a fixed disk (40). Fixedly arranged on the rotating disk (1) are the multiple permanent magnet blocks (2) in a circular-annular distribution, the spacing intervals between the permanent magnet blocks (2) are adjustable, the magnetic polarities of adjacent permanent magnet blocks (2) are opposite, that is, the magnetic polarities of all of the permanent magnet blocks (2) on a certain side of the rotating disk (1) are distributed in a pattern of N pole, S pole, N pole...; the Hall element (3) on the fixed disk (40) is arranged at a position in proximity to the permanent magnet blocks (2). The advantages of the sensor is that the N-S distribution of the magnetic polarities allows the Hall element (3) to acquire a rectangular wave signal, and to add a digital processing for setting a power-assist model; by adjusting the spacing intervals of the permanent magnet blocks (2), the rectangular wave signal is allowed to express the positions of the permanent magnet blocks (2) on the rotating disk (1), and to determine the uses of different rectangular waves; the relative positions of the permanent magnet blocks (2) and of the Hall element (3) are fixed, and signal output is reliable.

The invention relates to a rotary table type sensor provided with a plurality of magnetic blocks with adjustable positions and magnetic fluxes for a booster bicycle, belonging to a technology for providing control signals by multi-point magnetic induction. The sensor comprises a sensing element, a booster model processor, a digital / analog (D / A) converter and an operational amplifier which are sequentially connected, wherein the rotary table of the sensing element is provided with the plurality of permanent magnet blocks with adjustable positions and magnetic fluxes, and every two adjacent permanent magnet blocks have the opposite magnetic polarities, namely, the magnetic polarity distribution mode of the permanent magnet blocks is N pole, S pole, N pole, and so on; and the Hall is arranged at the position close to the permanent magnet blocks. The rotary table type sensor has the advantages that the every two adjacent permanent magnet blocks are distributed in the opposite magnetic polarities (NS), and square-wave signals can be obtained by the Hall, so that digital processing can be conveniently carried out on the signals; the positions of the permanent magnet blocks on the rotary table can be shown by the square-wave signals by adjusting the distances among the permanent magnet blocks and the magnetic fluxes of the permanent magnet blocks, so that the usage of the different square-wave signals can be confirmed; and the sensor can output electrical signals which have positions matched with movement positions of the permanent magnet blocks and have artificially set control models.

The invention discloses a rotating disc type sensing element with a plurality of unevenly distributed magnet blocks, belongs to the technical field of providing signals through magnetic induction, and in particular relates to the technology of providing a control signal through multi-point position magnetic induction on a rotating part. A plurality of permanent magnets distributed annularly are fixedly arranged on a rotating disc, and the spacings between the plurality of permanent magnets are different; the adjacent permanent magnets are opposite in magnetic polarity on one surface of the rotating disc; in other words, the distribution manner of the magnetic polarities of all permanent magnets on one surface of the rotating disc are pole N, pole S, pole N...; and a hall is arranged in a position in the vicinity of the permanent magnets. The rotating disc type sensing element with the plurality of unevenly distributed magnet blocks has the following advantages that with the opposite N-S distribution manner of the magnetic polarities of the adjacent permanent magnets, the hall is capable of obtaining a rectangular wave signal, thereby facilitating digital processing of the signal; and as the spacings between the plurality of permanent magnets are different, the rectangular wave signal is capable of indicating the positions of the permanent magnets on the rotating disc; and therefore, the uses of different rectangular waves are determined.