CN2329955Y - Testing and controlling instrument for interface of two non-resolving liquids - Google Patents
Testing and controlling instrument for interface of two non-resolving liquids Download PDFInfo
- Publication number
- CN2329955Y CN2329955Y CN 97239622 CN97239622U CN2329955Y CN 2329955 Y CN2329955 Y CN 2329955Y CN 97239622 CN97239622 CN 97239622 CN 97239622 U CN97239622 U CN 97239622U CN 2329955 Y CN2329955 Y CN 2329955Y
- Authority
- CN
- China
- Prior art keywords
- liquids
- interface
- resolving
- utility
- model
- 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
Links
Images
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The utility model relates to a testing and controlling instrument for an interface of two non-resolving liquids. The technical characteristic is that two groups of static pressure sensors (or a containing type pressure sensor) are respectively arranged on the pipeline openings of two detected solutions. A signal is converted through a switch circuit I/V, A/D and is input into a single chip machine. The position of the solution liquids interface can be accurately counted by the single chip machine according to the specific gravity of the two solution liquids. In addition, the position is displayed. The single chip machine drives a relay to execute. The utility model which is suitable for detecting the interface of two non-resolving liquids with different requirements has the advantages of novel design, high unfailing performance, and high precision.
Description
The utility model relates to the measurement and control instrument of two kinds of immiscible accurate positions of liquid interface of a kind of automatic detection.
Now, it is more to detect two kinds of immiscible methods that liquid interface adopted, and as artificial process, electrode method, can't realize automatic control with the artificial process detection, uses the electrode method, its cost costliness, poor safety performance.Patent documentations such as " optical fibre interface meter ", " water-oil interface sensor ", " measuring the instrument of two-phase liquid surface " have also been published on the Chinese patent communique, " optical fibre interface meter " adopts two groups of floating sheets as sensitive element, by sensor the stress of floating sheet is changed into light pulse signal, through processing of circuit, realize detecting the position at two kinds of different liquids interfaces.The instrument of liquid surface " measure two-phase " its technical scheme is to have the cylindrical shell of opening to place detected liquid one lower end, and shutoff end opening during extraction detects the position of two liquid interface, and its detection is inaccurate, also can't realize automatic detection.
The purpose of this utility model provide a kind of simple in structure, cost is low, realize detecting two kinds of immiscible liquid interface measurement and control instruments that accuracy is high automatically.
The utility model is finished like this, it places two groups of sensors on the pipeline opening of two kinds of detected non soluble liquids, signal is through on-off circuit, the I/V conversion, the A/D conversion, the D/A conversion, the input single-chip microcomputer also shows, single-chip microcomputer is according to the distance between proportion dA, the dB of two kinds of detected different liquids and two groups of sensors, adopt pressure reduction, Δ p=PA-PB=xdA+ (h-x) dB calculates the position of liquid interface X exactly, and display it, and the X value can be converted to the execution of electric signal driving relay.
Come the utility model done below in conjunction with embodiment and accompanying drawing and describe in further detail:
Accompanying drawing 1 is installed in the structural representation at detected solution conduit road junction for the utility model two sensors.
Accompanying drawing 2 is a circuit block diagram of the present utility model
With reference to accompanying drawing, two kinds of immiscible liquid interface measurement and control instruments of the utility model are by two groups of sensors (1,2), multi-way switch circuit, the I/V conversion, the A/D conversion, D/A changes single-chip microcomputer, display constitutes, two groups of sensors (1,2) be installed on the pipeline opening (3 of detected liquid tank body respectively, 4) on, wherein sensor (1) is installed on the pipeline opening (3) of A liquid, sensor (2) is installed on the pipeline opening (4) of B liquid, two groups of sensors adopt the static pressure type pressure transducer or hold the formula pressure transducer, the proportion of solution A is dA, the proportion of solution B is dB, distance between two groups of sensors is h, two immiscible liquid interface are X apart from the position of solution A sensor installation, sensor (1) is with the pressure signal of solution A liquid, sensor (2) is with the pressure signal process multi-way switch of solution B liquid, the I/V conversion, the A/D conversion, pressure signal is become the 4-20mA simulating signal input to single-chip microcomputer, single-chip microcomputer is according to 2 pressure differential deltap P=PA-PB, Δ P=xdA+ (h-x) dB, can calculate X exactly is two immiscible liquid interface positions, and by display the X value that calculates is shown, this X value and setting value are relatively, drive relay, and the X value is used to the transmission control system of transporting through D/A conversion output one road 4-20mA simulating signal.
The utility model modern design adopts sensor to convert pressure signal to electric signal input computing machine, the liquid interface value standard that calculates through electronic circuit, the precision height, its value of detecting is shown, and its value can be converted to the electric analogy amount, carry out by the Micro Controller Unit (MCU) driving relay.
The utility model is applicable to the accurate measurement that detects the various different immiscible liquid interface that require.
Claims (2)
1, a kind of two kinds of immiscible liquid interface measurement and control instruments, it is by sensor, multi-way switch circuit, the I/V conversion, the A/D conversion, formations such as D/A conversion, single-chip microcomputer, display, it is characterized in that two groups of sensors (1,2) are installed on respectively on the pipeline opening (3,4) of two kinds of detected immiscible solution.
2, two kinds of immiscible liquid interface measurement and control instruments as claimed in claim 1 is characterized in that described sensor is the static pressure type pressure transducer or holds the formula pressure transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97239622 CN2329955Y (en) | 1997-05-13 | 1997-05-13 | Testing and controlling instrument for interface of two non-resolving liquids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97239622 CN2329955Y (en) | 1997-05-13 | 1997-05-13 | Testing and controlling instrument for interface of two non-resolving liquids |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2329955Y true CN2329955Y (en) | 1999-07-21 |
Family
ID=33949565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97239622 Expired - Fee Related CN2329955Y (en) | 1997-05-13 | 1997-05-13 | Testing and controlling instrument for interface of two non-resolving liquids |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2329955Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107313878A (en) * | 2017-07-21 | 2017-11-03 | 西京学院 | A kind of double elements liquid propellant liquid level measure and control device |
-
1997
- 1997-05-13 CN CN 97239622 patent/CN2329955Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107313878A (en) * | 2017-07-21 | 2017-11-03 | 西京学院 | A kind of double elements liquid propellant liquid level measure and control device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204963951U (en) | Liquid level detection system | |
| CN105116166A (en) | Ultrasonic anemograph | |
| CN102607889B (en) | A kind ofly get liquid metering method for analytical instrument | |
| CN1113218C (en) | Float flow meter | |
| CN2329955Y (en) | Testing and controlling instrument for interface of two non-resolving liquids | |
| CN201100842Y (en) | Electronic level instrument | |
| CN105737797B (en) | Vertical deformation detection method and device | |
| CN201373834Y (en) | Online electronic solution concentration meter | |
| CN2209794Y (en) | Plug-in type liquid level sensor | |
| CN2035476U (en) | Continuous detecting device for pulp specific gravity | |
| CN211013162U (en) | Liquid level detection device for biological oil tank | |
| CN2492837Y (en) | Pointer-type pipe fluid flowmeter | |
| CN1139209A (en) | Fluid-detecting measuring device | |
| CN202814838U (en) | Liquid viscosity coefficient determinator | |
| CN205898179U (en) | Motormeter coils automatic check out system based on angle sensor | |
| CN216646552U (en) | Liquid flow rate metering device | |
| CN2566247Y (en) | Intelligent passive digital display liquid level gauge | |
| CN2404102Y (en) | Internal digital display target type flowmeter | |
| CN215178049U (en) | Novel liquid level meter | |
| CN213067825U (en) | Oil liquid detection equipment | |
| CN217331468U (en) | Electronic multifunctional pressure gauge | |
| CN213021796U (en) | Be used for car oil feeding system oil pump to mark level sensor | |
| CN2114148U (en) | Means for testing or calibrating water meter using microcomputers | |
| CN221099839U (en) | Liquid level monitoring device for water conservancy reservoir | |
| CN217930373U (en) | Multifunctional measuring instrument |
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 |