High-precision photoelectric liquid level sensor

A photoelectric liquid, high-precision technology, applied in liquid level indicators, instruments, machines/engines, etc., can solve the problems of low detection accuracy, achieve the effect of ensuring normal reception, improving detection sensitivity and accuracy, and reducing detection errors

Active Publication Date: 2022-01-14
深圳市奥图威尔科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a high-precision photoelectric liquid level sensor, aiming to solve the problem of low detection accuracy caused by the accumulation of water droplets at the cone tip of the sensor in the prior art

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Embodiment Construction

[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0024] The implementation of the present invention will be described in detail below in conjunction with specific embodiments.

[0025] In the drawings of this embodiment, the same or similar symbols correspond to the same or similar components; The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orien...

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Abstract

The invention relates to the technical field of photoelectric liquid level sensors and discloses a high-precision photoelectric liquid level sensor. The sensor comprises a transparent cone lens for detecting the liquid level of liquid to be detected, a light emitter for emitting light into the transparent cone lens, a light receiver for receiving the light reflected by the transparent cone lens and a rolling shaft arranged in a rotating mode, wherein the transparent cone lens is provided with a conical tip part which is arranged downwards, the rolling shaft is arranged below the conical tip part, an annular abutting groove is formed in the middle of the rolling shaft, the annular abutting groove is arranged in a closed surrounding mode in the circumferential direction of the rolling shaft, and the bottom of the conical tip part is embedded into the annular abutting groove and abuts against the bottom of the annular abutting groove; the rolling shaft is arranged below the transparent cone lens, and the annular abutting groove in the middle of the rolling shaft abuts against the cone tip part, so the surface tension of water drops at the cone tip part is damaged, the water drops are not prone to being adhered to the surface of the cone tip part, the water drops at the cone tip part can be rapidly eliminated, normal receiving of light signals by the light receiver is guaranteed, and detection sensitivity and precision are improved.

Description

technical field [0001] The patent of the present invention relates to the field of photoelectric liquid level sensors, specifically, to high-precision photoelectric liquid level sensors. Background technique [0002] The photoelectric liquid level sensor uses the principle of reflection and refraction of light at the interface of two different media to judge the liquid level of the liquid to be measured. It has the advantages of simple structure, high positioning accuracy, no mechanical parts, no need for debugging, high sensitivity and durability. Corrosion, low power consumption, small size and many other advantages, also has the characteristics of high temperature resistance, high pressure resistance, strong corrosion resistance, stable chemical properties, and little impact on the measured liquid, so it is widely used. [0003] The photoelectric liquid level sensor has a transparent cone lens, a light emitter and a light receiver. When the measured liquid is immersed in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F23/292
CPCG01F23/292Y02A90/30
Inventor 熊春波王贞松陈壁鑫万玖聪
Owner 深圳市奥图威尔科技有限公司
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