Sensor with large working stroke and small size

A technology with small working stroke and small volume, applied in the field of sensors, can solve the problems of large and small volume, unable to realize working stroke, limit the application of linear displacement sensors, etc., and achieve the effect of reducing working stroke

Pending Publication Date: 2017-09-26
CHENGDU HONGMING ELECTRONICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] It can be seen from the above that the working stroke of the traditional linear displacement sensor is directly proportional to the volume of the sensor, which leads to the i

Method used

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  • Sensor with large working stroke and small size
  • Sensor with large working stroke and small size

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[0019] The present invention will be further explained below in conjunction with the drawings:

[0020] Such as figure 1 with figure 2 As shown, the sensor with large working stroke and small volume according to the present invention includes a housing 3, a resistor 19, a brush, a collector ring 24, a lead terminal 22, a lead wire 1, a flexible stainless steel wire rope 7, a rotating shaft 15, and a shaft disk 10. Bearing 13 and insulating sleeve 25. The brushes include a first brush 20 and a second brush 23. The first brush 20 and the second brush 23 are respectively mounted on the collector ring 24 and can be connected to the resistor The surface of one side of the body 19 is in contact. The distance between the first brush 20 and the axis of the insulating sleeve 25 is different from the distance between the second brush 23 and the axis of the insulating sleeve 25. The resistor 19 The lead terminal 22 is connected to the lead wire 1, and the lead wire 1 is provided with a le...

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Abstract

The invention discloses a sensor with a large working stroke and a small size. A rotating shaft is mounted in a shell through a bearing; a shaft disk is fixedly arranged on the rotating shaft and is coaxial with the rotating shaft; an annular groove is formed in the outer circumferential surface of the shaft disk; one end of a pull rope is fixed in the annular groove, and the other end of the pull rod is located outside the shell; an insulating sleeve is fixedly arranged on the rotating shaft in a sleeving manner; a circular resistor body is mounted inside the shell and is provided with a resistor body center hole; the insulating sleeve penetrates through the resistor body center hole and can freely rotate; a current collecting ring is fixedly arranged on the insulating sleeve in a sleeving manner. According to the sensor, by converting an angular displacement motion of an electric brush into a linear displacement motion of the pull rope, the aim of completing detection of relatively large linear displacement only through the relatively small size is fulfilled; the sensor is intrinsically a linear displacement sensor, but compared with the conventional linear displacement sensor, the sensor has an outstanding advantage of a decreased size, so that the sensor can meet an application environment of a relatively small installation space; meanwhile, the working stroke cannot be reduced due to the small installation space.

Description

technical field [0001] The invention relates to a displacement sensor provided with a brush and a resistor, in particular to a sensor with a large working stroke and a small volume. Background technique [0002] Displacement sensors are divided into angular displacement sensors and linear displacement sensors according to their working methods. The linear displacement sensor is a displacement sensor that converts linear mechanical displacement into electrical signals. [0003] In traditional linear displacement sensors, the variable resistance slide rail is usually fixed on the fixed part of the sensor, and different resistance values ​​are measured through the displacement of the slide plate on the slide rail; the sensor slide rail is connected to a steady-state DC voltage, allowing microamperes to flow The small current, the voltage between the slider and the starting end, is proportional to the length the slider moves. [0004] It can be seen from the above that the work...

Claims

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Application Information

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IPC IPC(8): G01B7/02
CPCG01B7/02
Inventor 郭刚胡佑朴鲍红军吴永胜
Owner CHENGDU HONGMING ELECTRONICS CO LTD
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