CN2575622Y - Automatic resetting meter for mercury column of thermometer - Google Patents
Automatic resetting meter for mercury column of thermometer Download PDFInfo
- Publication number
- CN2575622Y CN2575622Y CN 02279691 CN02279691U CN2575622Y CN 2575622 Y CN2575622 Y CN 2575622Y CN 02279691 CN02279691 CN 02279691 CN 02279691 U CN02279691 U CN 02279691U CN 2575622 Y CN2575622 Y CN 2575622Y
- Authority
- CN
- China
- Prior art keywords
- liquid level
- conduit
- tongue tube
- lead
- wire
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a liquid level sensor which is an electronic device. The utility model is characterized in that the outer part of a guide tube (1) is sheathed with an annular floating body (3) and an annular magnet (2) which can freely do motion up and down following the liquid-level variation. A group of drying reed tubes (4) is arranged in the guide tube (1) in a sequential way. After one end of the guide tube is connected with the public end, a leading wire (7) is led out, and the other end of the guide tube can lead out a leading wire (6) by the pairwise connection of some electronic elements. When a liquid level (9) is varied, electric parameters between the leading wires (6) and (7) can also produce variation, so that the utility model can only use the two leading wires to be connected with a detection mechanism, and the utility model can carry out the multi-point detection for different heights of varied liquid levels.
Description
The utility model relates to a kind of liquid level sensor of tracer liquid liquid level, is a kind of electron device.
Detect liquid level number of ways is arranged: the simplest is the electric pole type liquid level sensor, and it is to utilize the electric conductivity of fluid to be measured to detect, and it only limits to the detection of the liquid level of non-aggressive and conduction, but also can be malfunctioning because of electrolysis, corrosion, fouling etc.That the existing isolated liquid level sensor that utilizes tongue tube and permanent magnet to make has is simple in structure, dependable performance, applied widely, cheap characteristics, is specially adapted to the detection to less liquid level.In the time of will detecting more a plurality of liquid levels, just need to increase lead-in wire (pin count=detection count+1).So, carry out multiple spot to the differing heights that changes liquid level when detecting, exist the shortcoming that lead-in wire is many, be connected complexity with testing agency.
The purpose of this utility model is that a kind of improved isolated liquid level sensor will be provided, and it can only link to each other with testing agency with two lead-in wires, just can carry out multiple spot to the differing heights that changes liquid level and detect.
The purpose of this utility model is enclosed within outside the airtight non-magnetic conduction conduit in a lower end after being achieved in that annular permanent magnnet and annular buoyancy aid being linked, and magnet can be moved along the conduit easy on and off with tested liquid level variation.In conduit along catheter shaft to arranging one group of tongue tube in order, with an end of these tongue tubes with draw a lead-in wire after common port links to each other, draw another lead-in wire after their other end is linked to each other in twos by a kind of electronic component (resistance or electric capacity or diode or voltage stabilizing element etc.).When magnet was in a certain position, near corresponding a certain tongue tube can be subjected to the influence in magnetic field and closure.At this moment, the electric parameter value is determined by this closed tongue tube between two lead-in wires.The residing position of magnet difference, influenced and closed tongue tube are also different, and the electric parameter value between two lead-in wires is also different.Like this, just can detect the height of liquid level by the electric parameter value that detects between two lead-in wires.
The utility model so install simply, is saved lead because only need to link to each other with testing agency with two lead-in wires, can also dwindle the volume of testing agency, is specially adapted to remote detection.
Accompanying drawing is a kind of structural representation of liquid level sensor, is to realize a kind of method of the present utility model, and its course of work and principle are as follows:
Non-magnetic conduction conduit (1) is vertically fixed in the fluid to be measured (8),, makes it to move along conduit (1) easy on and off with the variation of tested liquid level (9) with annular buoyancy aid (3) and the outside that is enclosed within conduit (1) after ring-shaped magnet (2) links to each other.In conduit (1), arrange one group of tongue tube (4) vertically in order, with an end of tongue tube group (4) with draw a lead-in wire (7) after common port links to each other, draw another lead-in wire (6) after the other end of tongue tube group (4) linked to each other in twos by resistor group (5), when magnet (2) was in a certain position with the variation of tested liquid level (9), some accordingly (or several) tongue tube was subjected to the influence in magnetic field and closure near it.At this moment, the resistance value between two lead-in wires (6), (7) just equals that the highest in the tongue tube of closure all resistance value sum in tongue tube top.When the height of tested liquid level (9) not simultaneously, the residing position of magnet (2) is also different, by influence of magnetic field and closed tongue tube is also different, the resistance values between two lead-in wires (6), (7) are also different.Like this, just can detect liquid level by the resistance value that detects between two lead-in wires (6), (7).
Claims (3)
1, a kind of liquid level sensor of tracer liquid liquid level, this sensor has the non-magnetic conduction conduit (1) of a lower end closure, an outer annular buoyancy aid (3) and the ring-shaped magnet (2) of being with of conduit (1), buoyancy aid (3) can move along conduit (1) easy on and off with the variation of tested liquid level (9) with magnet (2), be arranged with one group of tongue tube (4) in the conduit (1) vertically in order, one end of tongue tube group (4) with draw a lead-in wire (7) after common port links to each other, draw another lead-in wire (6) after the other end that it is characterized in that tongue tube group (4) links to each other in twos by certain electronic component.
2,, it is characterized in that drawing another lead-in wire (6) after the other end with tongue tube group (4) links to each other in twos by resistance or electric capacity or diode or voltage stabilizing element in conduit (1) according to the described device of claim 1.
3, according to the described device of claim 1, it is characterized in that the other end of tongue tube group (4) with outside the lead extraction catheter (1), conduit (1) outside, draw another lead-in wire (6) after continuous in twos then by resistance or electric capacity or diode or voltage stabilizing element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02279691 CN2575622Y (en) | 2002-10-25 | 2002-10-25 | Automatic resetting meter for mercury column of thermometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02279691 CN2575622Y (en) | 2002-10-25 | 2002-10-25 | Automatic resetting meter for mercury column of thermometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2575622Y true CN2575622Y (en) | 2003-09-24 |
Family
ID=33742706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02279691 Expired - Fee Related CN2575622Y (en) | 2002-10-25 | 2002-10-25 | Automatic resetting meter for mercury column of thermometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2575622Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697972A (en) * | 2012-09-28 | 2014-04-02 | 北京中天金谷粮油工程技术有限公司 | High-accuracy liquid level, height and display sensor |
| CN105538344A (en) * | 2016-02-02 | 2016-05-04 | 江苏豪林自动化科技有限公司 | Material height measuring device for mechanical arm |
| CN109360769A (en) * | 2018-11-21 | 2019-02-19 | 沈阳明远电气科技有限公司 | Tongue tube liquid level relay |
| WO2020034381A1 (en) * | 2018-08-15 | 2020-02-20 | 广州视源电子科技股份有限公司 | Liquid level detection apparatus and device containing same, liquid level detection method, electronic device and computer readable storage medium |
-
2002
- 2002-10-25 CN CN 02279691 patent/CN2575622Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697972A (en) * | 2012-09-28 | 2014-04-02 | 北京中天金谷粮油工程技术有限公司 | High-accuracy liquid level, height and display sensor |
| CN105538344A (en) * | 2016-02-02 | 2016-05-04 | 江苏豪林自动化科技有限公司 | Material height measuring device for mechanical arm |
| WO2020034381A1 (en) * | 2018-08-15 | 2020-02-20 | 广州视源电子科技股份有限公司 | Liquid level detection apparatus and device containing same, liquid level detection method, electronic device and computer readable storage medium |
| CN109360769A (en) * | 2018-11-21 | 2019-02-19 | 沈阳明远电气科技有限公司 | Tongue tube liquid level relay |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |