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Printed circuit wiring method used for displacement measurement sensor

A printed circuit, displacement measurement technology, applied in directions including printed electrical components, measuring devices, using electrical devices, etc., can solve the problems of signal clutter noise signal interference, increase manufacturing costs, affect stability, accuracy, etc., Achieving the effect of small volume and low cost

Inactive Publication Date: 2011-04-06
CHONGQING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 2. Due to the use of a single line rectangular wave Printed circuit, the signal is very weak, the requirements for the mechanical position of the two planes are very high, and the requirements for the flatness, parallelism, gap, and jumping of the two planes are very strict, which increases the manufacturing cost
[0006] 3. Also due to the use of rectangular waves Printed circuit, the vertical part of the circuit is a useful part and the horizontal part is just a connection, but it brings a lot of clutter and noise signal interference to the signal, thus affecting the stability and accuracy

Method used

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  • Printed circuit wiring method used for displacement measurement sensor
  • Printed circuit wiring method used for displacement measurement sensor
  • Printed circuit wiring method used for displacement measurement sensor

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Embodiment Construction

[0046] The technical solution of the present invention will be described in detail below according to the accompanying drawings.

[0047] In order to facilitate the description later, the meaning and graphic representation of the four nouns "body, layer, row, and section" are firstly defined.

[0048] "Body" refers to the substrate of printed circuit wiring, as shown in Figure 7.

[0049] "Layer" (or "face") means that the printed circuit wiring is on one side of the substrate, or on both sides, or on a certain level inside. For example, the existing inductive synchronizers are printed on a single layer on the surface. , as shown in Figure 8.

[0050] "Row" refers to whether the printed wiring concentrates several phases (commonly 2-phase or 3-phase) in a row on a certain side, or is divided into different rows according to different phases. For example, some induction synchronizers are divided into 2 rows, which means such as Figure 9.

[0051] The existing common inductio...

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Abstract

A printed circuit wiring method for a displacement (angular displacement or straight-line displacement) measuring transducer is provided. In the method, each phase coil of excitation coils of the displacement measuring transducer is respectively arranged on different printed circuit substrates, or respectively arranged on different linear position of a same printed circuit substrate, or respectively arranged on different layers of a same printed circuit substrate; each phase coil uses n-shaped winding or 8-shaped winding wiring; the induction coils of the displacement measuring transducer arearranged on another printed circuit substrate and n-shaped winding or 8-shaped winding wiring is used so that both number of pole-pairs and number of gauge heads can be n / 2 of the maximum so as to realize measurement of high precision by means of excitation coils and induction coils with low-grade precision. The method can produce traveling wave signals and is applied to dynamic, static and variable displacement tracking measurement, thereby realizing transducers with high precision, small volume, low cost, high reliability and universal measuring.

Description

technical field [0001] The invention relates to a displacement measuring sensor, including an angular displacement and a linear displacement measuring sensor, in particular to a wiring method using printed circuit technology in a modulated displacement measuring sensor represented by an inductive synchronizer and a time grating. Background technique [0002] All of today's displacement (angle and length) sensors include reticles, gratings, magnetic gratings, inductive synchros, resolvers, ball grids, gear grids, multi-tooth indexing discs, etc., none of which can improve accuracy. Instead of grasping two points: one is to increase the number of grid lines (or the number of pole pairs, the number of excitation coils), and the other is to increase the number of reading heads (or the number of measuring heads, the number of induction coils). The former can increase sensitivity, subdivision, and precision, while the latter can partially eliminate some harmonic errors through uni...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B7/02H05K1/16
Inventor 彭东林王先全董淳杨继森万文略张兴红
Owner CHONGQING UNIV OF TECH