Wearable miniature position sensor

A sensor and wearable technology, applied in the field of sensors, can solve problems such as inappropriateness, and achieve the effect of simple structure, good diffraction and diffraction effects, and small size

Pending Publication Date: 2018-03-27
CHENGDU SIWUGE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the field where the operating distance needs to reach 1 meter, the volume requirement is relatively small at 1-2cm, and there are radiation compon

Method used

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  • Wearable miniature position sensor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] like figure 1 , figure 2 A wearable miniature position sensor is shown, including a sealing layer 4, a printed circuit board layer 5, a supporting buffer layer 6 and an adhesive layer 7 stacked sequentially from top to bottom, and a coupling cable is connected to the printed circuit board layer 5 9.

[0028] Specifically, a radiator circuit is provided on the printed circuit board layer 5, and the radiator circuit includes an access port 1, a ground port 3, a capacitor C, a coil L, and a vibrator 2, and the access port 1 is used for connecting with a cable to access signal; the ground port 3 is used to connect to the ground; the ground port and the access port are connected to the coupling cable 9 to realize the connection with the external device; the capacitor C is connected between the access port 1 and the ground port 3; the coil L is connected in parallel On the capacitor, after the signal is connected through the cable, the relatively low-frequency signal in th...

Embodiment 2

[0031] Based on the principle of the above-mentioned embodiment, this embodiment optimizes the above-mentioned embodiment, that is, a resistor R is connected between the access port 1 and the vibrator 2, the resistor is an adjustable resistor, and the signal strength is adjusted through the adjustable resistor.

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PUM

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Abstract

The invention discloses a wearable miniature position sensor, which comprises a sealing layer, a printed circuit board layer and a supporting buffer layer stacked sequentially from top to bottom, the printed circuit board layer is provided with a radiator circuit, and the radiator The circuit includes an access port for signal access, a ground port for grounding, a capacitor connected between the access port and the ground port, a coil connected in parallel to the capacitor, and an oscillator connected to the access port. ports, access ports are connected on coupling cables. Based on the circuit structure of the present invention, the signal of the cable is distributed in the near field through the vibrator and the coil, which can not only realize the radiation of two frequency bands with a long distance between frequencies, but also has a simple structure, small size, and a radiation distance of up to 1 meter, which satisfies the need for action extraction. Experimental needs in other fields.

Description

technical field [0001] The invention relates to the field of sensors, in particular to a wearable miniature position sensor. Background technique [0002] The problem of short-range electromagnetic field radiation is different from that of antennas in the traditional sense. The energy of the electromagnetic field is concentrated in the Ferriel zone, and not most of it radiates to the far field to form a pattern. The applications of short-range electromagnetic fields are mostly concentrated in the fields of wireless charging and near-field communication NFC, both of which have a working distance of less than 10CM. The number of coil turns of the radiator for wireless charging is very dense, the power capacity is large, and the volume is also large, with an area of ​​about 10 cm. Due to the need for high-quality brass materials, the cost is also high; the near-field communication radiator is small, and the operating distance Also small, good only for work in snug situations. ...

Claims

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Application Information

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IPC IPC(8): G01B7/00G01B7/30
CPCG01B7/003G01B7/30
Inventor 周密吴斌
Owner CHENGDU SIWUGE TECH CO LTD
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