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Measuring device

一种测定装置、检测信号的技术，应用在测量装置、悬浮液和多孔材料分析、仪器等方向，能够解决气泡污染、不能正确地诊断污染状态等问题，达到防止误测定、简单测定污染度的效果

Active Publication Date: 2019-09-27
YAMASHIN FILTER CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the invention described in Patent Document 1, if air bubbles or the like are contained in the hydraulic oil, the air bubbles may be misdetected as contamination, and the contamination state may not be correctly diagnosed.

Method used

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Embodiment Construction

[0045] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. figure 1 It is a figure which shows the schematic diagram of the pollution degree measuring apparatus 1. The pollution level measuring device 1 is installed at a desired position of a device that uses liquid to perform a desired operation, such as construction equipment and hydraulic equipment.

[0046] At least a part of the measurement channel 10 through which liquid such as oil and water to be measured flows is formed of a translucent material. That is, the measurement channel 10 may be formed entirely of a light-transmitting material, or a window for introducing and exporting light may be formed in a part.

[0047] A light emitting unit (for example, LED) 11 for irradiating light into the measurement flow channel 10 from one side is disposed on a portion of the measurement flow channel 10 formed of a light-transmitting material. On the side opposite to the...

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PUM

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Abstract

The present invention provides a measurement device capable of preventing erroneous measurement due to air bubbles and easily measuring the degree of contamination. A signal for measuring the degree of contamination of the liquid is generated based on the particle detection signal and the bubble detection signal, wherein the particle detection signal is a continuous signal generated by amplifying the continuous electrical signal converted by the light receiving unit at a first magnification, The air bubble detection signal is a continuous signal generated by amplifying the continuous electrical signal converted by the light receiving unit at a second magnification smaller than the first magnification.

Description

technical field [0001] The present invention relates to assay devices. Background technique [0002] Patent Document 1 discloses a hydraulic oil contamination state diagnostic device, which uses a mini pump to circulate hydraulic oil at a nearly constant speed in a flow channel of a microcell made of a transparent glass material. The laser light irradiated from the light emitting element installed at the position sandwiching the flow path from the left and right transmits the hydraulic oil in the flow path, and is received by the light receiving element installed at the position sandwiching the flow path from the left and right sides , and output a detection signal corresponding to the amount of light received from the light receiving element to the controller. [0003] prior art literature [0004] patent documents [0005] Patent Document 1: Japanese Patent Laid-Open No. 2001-221793 [0006] In the invention described in Patent Document 1, if air bubbles or the like ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N15/06
CPCG01N15/1429G01N15/1456G01N33/2835
Inventor 石塚雅规
Owner YAMASHIN FILTER CORP
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