阅读说明：本技术 一种平面绕线线圈无磁采集位移和角速度的方法 (Method for non-magnetic acquisition of displacement and angular velocity of planar winding coil ) 是由 王元西 于 2019-10-15 设计创作，主要内容包括：本发明公开了一种平面绕线线圈无磁采集位移和角速度的方法,属于位移和角速度数据采集技术领域,具体包括如下步骤：(1)同颜色为一组,比较线圈1和9、2和10、3和11、4和12、5和13、6和14、7和15、8和16的感应电动势高低；(2)以1、2、3、4、5、6、7、8号线圈刚好在阻尼区为起始状态,然后以正流逆时针方向旋转进行分析；(3)正流从FSM1依次阿拉伯数字增加到FSM32,然后从FSM32到FSM1完成一圈；反流是从FSM32依次阿拉伯数字减少到FSM1,然后从FSM1到FSM32完成反流一圈；(4)角速度检测分析：计算出目标检测物的旋转角速度。本发明利用磁通量变化引起的感应电动势变化差检测被检测目标的旋转的位移和角速度。(The invention discloses a method for non-magnetically acquiring displacement and angular velocity by a planar winding coil, which belongs to the technical field of displacement and angular velocity data acquisition and specifically comprises the following steps: (1) comparing the induced electromotive force levels of coils 1 and 9, 2 and 10, 3 and 11, 4 and 12, 5 and 13, 6 and 14, 7 and 15, 8 and 16 in the same color group; (2) taking coils No. 1, 2, 3, 4, 5, 6, 7 and 8 just in a damping area as an initial state, and then rotating in a positive flow anticlockwise direction for analysis; (3) the positive flow is sequentially Arabic numerals increased from FSM1 to FSM32 and then completes one turn from FSM32 to FSM 1; the reverse flow is realized by reducing Arabic numbers from FSM32 to FSM1, and then completing a reverse flow circle from FSM1 to FSM 32; (4) angular velocity detection analysis: the rotational angular velocity of the target detection object is calculated. The invention detects the rotary displacement and angular speed of the detected target by using the induced electromotive force variation difference caused by the magnetic flux variation.)

1. A method for non-magnetic acquisition of displacement and angular velocity of a planar winding coil is characterized by comprising the following steps: the method specifically comprises the following steps:

(1) comparing the induced electromotive force levels of coils 1 and 9, 2 and 10, 3 and 11, 4 and 12, 5 and 13, 6 and 14, 7 and 15, 8 and 16 in the same color group;

(2) taking coils No. 1, 2, 3, 4, 5, 6, 7 and 8 just in a damping area as an initial state, and then rotating in a positive flow anticlockwise direction for analysis;

(3) the positive flow is sequentially Arabic numerals increased from FSM1 to FSM32 and then completes one turn from FSM32 to FSM 1; the reverse flow is realized by reducing Arabic numbers from FSM32 to FSM1, and then completing a reverse flow circle from FSM1 to FSM 32;

(4) angular velocity detection analysis: and monitoring the switching time of adjacent state machines by a high-precision timer, and calculating the rotation angular velocity of the target detection object according to an interpolation sampling formula.

2. The method for non-magnetic acquisition of displacement and angular velocity of a planar wound coil as claimed in claim 1, wherein: and (4) the sampling rate in the step (4) is higher than 2 times of the rotation speed of the detected equipment.

Technical Field

The invention relates to the technical field of displacement and angular velocity data acquisition, in particular to a method for acquiring displacement and angular velocity of a planar winding coil in a non-magnetic mode.

Background

In the aspect of water meter data acquisition, magnetic acquisition is mainly carried out by using photoelectric direct reading, reed pipes, Hall devices and the like, the influence of surrounding environment is large, and the rising of a non-magnetic acquisition technology arouses great interest in the industry.

The photoelectric direct reading has the defects that the reading is influenced by the water quality in a wet meter; the reed switch and the Hall device have the defects that a base meter is slightly changed, the base meter is easily interfered by environment and magnet, water is easily stolen, and impurities are easily accumulated to block the meter after a long time in a wet meter; the pin type non-magnetic acquisition has the defects of difficult production, high large-scale mass production cost and low yield, and each table is delivered out of the factory correspondingly and needs to be calibrated; the existing plane winding coil has the defect of non-magnetic acquisition that displacement is easy to deviate and angular speed cannot be detected.

Disclosure of Invention

Aiming at the problems in the background technology, the invention provides a method for collecting displacement and angular speed of a planar winding coil without magnetism.

In order to achieve the purpose, the invention provides the following technical scheme:

1. a method for non-magnetic acquisition of displacement and angular velocity of a planar winding coil is characterized by comprising the following steps: the method specifically comprises the following steps:

(1) comparing the induced electromotive force levels of coils 1 and 9, 2 and 10, 3 and 11, 4 and 12, 5 and 13, 6 and 14, 7 and 15, 8 and 16 in the same color group;

(2) taking coils No. 1, 2, 3, 4, 5, 6, 7 and 8 just in a damping area as an initial state, and then rotating in a positive flow anticlockwise direction for analysis;

(3) the positive flow is sequentially Arabic numerals increased from FSM1 to FSM32 and then completes one turn from FSM32 to FSM 1; the reverse flow is realized by reducing Arabic numbers from FSM32 to FSM1, and then completing a reverse flow circle from FSM1 to FSM 32;

(4) angular velocity detection analysis: and monitoring the switching time of adjacent state machines by a high-precision timer, and calculating the rotation angular velocity of the target detection object according to an interpolation sampling formula.

Further, the sampling rate in the step (4) is higher than 2 times of the rotation speed of the detected device.

Compared with the prior art, the invention has the beneficial effects that:

the method can simultaneously acquire displacement and angular velocity data.

Drawings

FIG. 1 is a block computation graph;

FIG. 2 is a schematic diagram of a device under test;

fig. 3 is a switching diagram of the forward flow reverse flow state machine.

Detailed Description

The invention is explained in more detail below with reference to exemplary embodiments and the accompanying drawings. The following examples are provided only for illustrating the present invention and are not intended to limit the scope of the present invention.