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Passive sensor and sensing method thereof

A passive sensor and sensor technology, which is applied in the sensor field to achieve the effects of simple structure, convenient use and simple method

Active Publication Date: 2012-01-04
南京艾驰电子科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The problem to be solved by the present invention is: the existing sensor can only realize the single function of rotation counting, and the operating temperature range is narrow, and the requirements for the use environment are high

Method used

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] Such as figure 1 , figure 2 As shown, the dual-function passive sensor of the present invention includes a casing 1, and a sensitive component 2 is housed in the casing 1, and the sensitive component 2 is electrically connected to three outer leads 4 through a printed board 3, and the port of the casing 1 is encapsulated with an epoxy resin sealing material 5 .

[0026] Wherein, the shell 1 is an aluminum cylindrical shell with a diameter of φ11 mm and a height of 6 mm; the size of the printed board 3 is adapted to the inner diameter of the shell, and mainly serves as a transitional circuit between the sensitive component 2 and the outer lead 4. Connection as; the outer lead 4 includes 1 ground wire G, 2 output wires U 1 and U 2 , The spacing of the 3 leads conforms to the standard spacing of single in-line devices, which is convenient for installation and ...

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Abstract

The invention discloses a passive sensor and a sensing method thereof. The passive sensor comprises a shell, sensitive components, a printed board, outer leads and a sealing material, wherein the sensitive components are arranged in the shell; the sensitive components are connected with the three outer leads electrically by the printed board; the three outer leads are respectively two output ends U1 and U2 and a grounding end G of the sensor; the port of the shell is encapsulated by using an epoxy resin sealing material; the sensitive components comprise sensitive wires, enamelled wire windings and a framework; the framework is cross-shaped; the sensitive wires are embedded into through holes of the framework; the enamelled wire windings are respectively wound on the four arms of the framework; and the enamelled wire windings wound on the same sensitive wire are connected in series to form the induction coil of the wound sensitive wire. The passive sensor performs two types of sensing such as rotary counting and direction identification at the same time, performs the rotary counting on pulses according to the time sequence characteristics of electrical pulses, and performs the rotary counting and the rotary direction identification on an object at the same time according to the time sequence characteristics of the electrical pulses.

Description

technical field [0001] The invention belongs to the technical field of sensors, relates to a magnetoelectric sensor, is a passive sensor and a sensing method thereof, and has dual functions of rotation counting and direction identification. Background technique [0002] Existing rotation counting sensors have various methods such as mechanical type, photoelectric type, and magnetoelectric type. Due to the lack of electrical signal output, the mechanical rotation counter cannot be used in automatic control, and has been gradually eliminated. However, photoelectric and magnetoelectric rotation counting sensors generally require a power supply and have a single function. At present, there is no sensor that can simultaneously perform rotation counting and direction recognition. Also, these sensors operate over a narrow temperature range. For example, the limit operating temperature of a sensor made of silicon material is 150°C. When the temperature exceeds 150°C, the silicon m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06M1/10G01F15/07G01P13/04G01P13/02
Inventor 崔义炜李云方刘玉林凌超潘旭东张年容郑主惠
Owner 南京艾驰电子科技有限公司
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