CN2272581Y - Microwave moisture content tester - Google Patents
Microwave moisture content tester Download PDFInfo
- Publication number
- CN2272581Y CN2272581Y CN 96229940 CN96229940U CN2272581Y CN 2272581 Y CN2272581 Y CN 2272581Y CN 96229940 CN96229940 CN 96229940 CN 96229940 U CN96229940 U CN 96229940U CN 2272581 Y CN2272581 Y CN 2272581Y
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- CN
- China
- Prior art keywords
- waveguide
- complementary wave
- diaphragm
- sheet
- moisture content
- 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 discloses a microwave moisture content tester comprising a sensor provided with a bi-directional coupler inside. A power detector is a bi-power detector. The utility model mainly solves measurement errors caused by ambient temperature change, is widely suitable for measuring water content in fluid and is especially suitable for measuring water content in petroleum.
Description
The utility model relates to a kind of microwave moisture content proving installation.
The CN862025036 patent disclosure a kind of name be called " reflection type microwave moisture content proving installation ", this device is to be made of solid state microwave source, directional coupler, waveguide switch, antenna formula probe, power detector, microwave absorbing tube and checking-valve body.The major defect of this device is that the variation that can not solve owing to environment temperature causes that the output of solid state microwave source microwave power changes the measuring error that causes.Therefore this device is provided with waveguide switch, is used for to this device owing to the measuring error that the variation that is subjected to environment temperature causes is carried out artificial self-correcting, so brings many inconvenience to the user.
The purpose of this utility model is that a kind of microwave moisture content proving installation that artificial self-correcting can be eliminated the measuring error that the variation owing to environment temperature causes automatically that need not will be provided.
The purpose of this utility model is achieved in that this microwave moisture content proving installation, it is made up of display and sensor, described sensor comprises the solid state microwave source, isolator, power detector, directional coupler, antenna probes, microwave absorbing tube and checking-valve body, it is characterized in that described directional coupler is a dual directional coupler, it is by a main waveguide and first, the second two complementary wave conduits are formed, described main waveguide and described first, the second two complementary wave conduits are communicating pipes each other, the described main waveguide and the second complementary wave conduit all contain a port and a closing end, the closing end of the closing end of described main waveguide and the second complementary wave conduit all is on the same plane
Described power detector is two power detectors, it comprises a matched waveguide section, on this matched waveguide section, be provided with two through holes, described first, the second two secondary conduits are inserted in respectively in described two through holes, the upper port place of the two-port of described first, second two complementary wave conduits and described two through holes is respectively equipped with first, second two slice coupling sheets contour with described matched waveguide section at grade in the port of described first, second two complementary wave conduits; Above described matched waveguide section, be provided with a diaphragm, central authorities at this diaphragm are provided with the third electrode sheet, are provided with first, second two groups of thermopairs, are respectively equipped with first, second two plate electrodes sheet on the left side of first group of thermopair and the right of second group of thermopair at the right and left of third electrode sheet; Above described diaphragm, be provided with a waveguide segment, on this waveguide segment, be provided with two through holes, in this two through hole, be provided with the 3rd, the 4 two coupling sheet; Described first is vertical also crossing with first and second liang of group thermopairs on the described diaphragm respectively with the 4 two coupling sheet with second with the 3 two coupling sheet; Above described waveguide segment, be provided with a battery lead plate; On described battery lead plate and waveguide segment, be provided with three binding posts, the lower end of these three binding posts respectively with described first, second and the 3rd totally three plate electrode sheets join.
The utility model is owing to be provided with dual directional coupler and two power detector in described sensor, in described dual directional coupler, set up the second complementary wave conduit, it only is used for detecting because the reference signal that changed by the caused solid state microwave of variation of ambient temperature source output power, and both comprised the reference signal of identical change in the measuring-signal of from the first complementary wave conduit, obtaining, also comprised microwave moisture content test signal simultaneously, the reference signal that therefore only need deduct identical change can record correct microwave moisture content test signal, therefore the utility model need not artificial self-correcting, just can eliminate the measuring error that causes owing to the variation that is subjected to environment temperature automatically.
Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof.
Fig. 1 is the structural representation of sensor described in the utility model.
Fig. 2 is the block diagram of sensor described in the utility model.
Fig. 3 is the structural representation of described in the utility model pair of power detector.
Fig. 4 is the structural representation of diaphragm described in the utility model.
Describe structure in detail below in conjunction with Fig. 1, Fig. 2, Fig. 3, Fig. 4 according to the concrete device that the utility model proposes.
This microwave moisture content proving installation, it (sees Fig. 1 by display (not shown) and sensor, Fig. 2) form, described sensor comprises solid state microwave source 1, isolator 2, power detector 4, directional coupler 3, antenna probes 5, microwave absorbing tube 6, with checking-valve body 7, described directional coupler 3 is a dual directional coupler, it is by a main waveguide 3-1 and first, the second two secondary conduit 3-2 and 3-3 form, described main waveguide 3-1 and described first, the second two secondary conduit 3-2 and 3-3 are communicating pipes each other, the described main waveguide 3-1 and the second complementary wave conduit 3-3 all contain a port and a closing end, the closing end of the closing end of described main waveguide 3-1 and the second complementary wave conduit 3-3 is on the same plane
Described power detector 4 is two power detectors (seeing Fig. 3 for details), it comprises a matched waveguide section 15, on this matched waveguide section 15, be provided with two through hole 15-1 and 15-2, described first, the second two complementary wave conduit 3-2 and 3-3 are inserted in respectively among described two through hole 15-1 and the 15-2, described first, the two-port of the second two complementary wave conduit 3-2 and 3-3 and the upper port place of described two through hole 15-1 and 15-2 at grade, described first, be respectively equipped with in the port of the second two complementary wave conduit 3-2 and 3-3 one with described matched waveguide 15 contour first, the second two coupling sheets 11 and 12; Above described matched waveguide 15, be provided with a diaphragm 16 (seeing Fig. 4 for details), central authorities at this diaphragm 16 are provided with third electrode sheet 23, the right and left at third electrode sheet 23 is provided with first, second two groups of thermopairs 25 and 26, is respectively equipped with first, second two plate electrodes sheet 22 and 24 on the left side of first group of thermopair 25 and the right of second group of thermopair 26; Above described diaphragm, be provided with a waveguide segment 17, on this waveguide segment 17, be provided with two through hole 17-1 and 17-3, in this two through hole, be provided with the 3rd, the 4 two coupling sheet 13 and 14; Described first with the 3 two coupling sheet 11 with 12 with second with the 4 two coupling sheet 13 with 14 respectively with described diaphragm 16 on first and second liang of group thermopairs 25 vertical with 26 also crossing; Above described waveguide segment 17, be provided with a battery lead plate 18; On described battery lead plate 18 and waveguide segment 17, be provided with three binding posts 19,20 and 21, the lower end of these three binding posts respectively with described first, second and the 3rd totally three plate electrode sheets 22,23 and 24 join, also be provided with a socket 8 on the described sensor, this socket 8 links to each other with 21 by lead 9 and described three binding posts 19,20.10 is woven hoses among Fig. 2.
The utility model is widely used in measuring the water cut in the fluid, is specially adapted to measure the water cut in the oil.
Claims (2)
1. microwave moisture content proving installation, it is made up of display and sensor, described sensor comprises the solid state microwave source, isolator, power detector, directional coupler, antenna probes, microwave absorbing tube and checking-valve body, it is characterized in that described directional coupler is a dual directional coupler, it is made up of a main waveguide and the one the second two complementary wave conduits, described main waveguide and described first, the second two secondary conduits are communicating pipes each other, the described main waveguide and the second complementary wave conduit all contain a port and a closing end, the closing end of the closing end of described main waveguide and the second complementary wave conduit all is on the same plane
Described power detector is two power detectors, it comprises a matched waveguide section, on this matched waveguide section, be provided with two through holes, described first, second two complementary wave conduits are inserted in respectively in described two through holes, the upper port place of the two-port of described first, second two complementary wave conduits and described two through holes is respectively equipped with first, second two slice coupling sheets contour with described matched waveguide section at grade in the port of described first, second two complementary wave conduits; Above described matched waveguide section, be provided with a diaphragm, central authorities at this diaphragm are provided with the third electrode sheet, are provided with first, second two groups of thermopairs, are respectively equipped with first, second two plate electrodes sheet on the left side of first group of thermopair and the right of second group of thermopair at the right and left of third electrode sheet; Above described diaphragm, be provided with a waveguide segment, on this waveguide segment, be provided with two through holes, in this two through hole, be provided with the 3rd, the 4 two coupling sheet; Described first is vertical also crossing with first and second liang of group thermopairs on the described diaphragm respectively with the 4 two coupling sheet with second with the 3 two coupling sheet; Above described waveguide segment, be provided with a battery lead plate; On described battery lead plate and waveguide segment, be provided with three binding posts, the lower end of these three binding posts respectively with described first, second and the 3rd totally three plate electrode sheets join.
2. microwave moisture content proving installation according to claim 1 is characterized in that also being provided with on the described sensor socket, and this socket links to each other with described three binding posts by lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96229940 CN2272581Y (en) | 1996-05-22 | 1996-05-22 | Microwave moisture content tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96229940 CN2272581Y (en) | 1996-05-22 | 1996-05-22 | Microwave moisture content tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2272581Y true CN2272581Y (en) | 1998-01-14 |
Family
ID=33907476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96229940 Expired - Fee Related CN2272581Y (en) | 1996-05-22 | 1996-05-22 | Microwave moisture content tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2272581Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104051837A (en) * | 2014-06-30 | 2014-09-17 | 成都赛纳赛德科技有限公司 | Six-port two-way directional coupler |
| CN104681909A (en) * | 2013-11-27 | 2015-06-03 | 中国航空工业集团公司雷华电子技术研究所 | Waveguide slot three-way power divider |
| CN108398442A (en) * | 2018-02-11 | 2018-08-14 | 杨厚荣 | Online immersion microwave radar Moisture Meter and its measurement method are realized |
| CN108918689A (en) * | 2018-04-09 | 2018-11-30 | 华南理工大学 | A kind of supersonic sounding direct wave elimination system and method for software and hardware combined adjustment |
-
1996
- 1996-05-22 CN CN 96229940 patent/CN2272581Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104681909A (en) * | 2013-11-27 | 2015-06-03 | 中国航空工业集团公司雷华电子技术研究所 | Waveguide slot three-way power divider |
| CN104051837A (en) * | 2014-06-30 | 2014-09-17 | 成都赛纳赛德科技有限公司 | Six-port two-way directional coupler |
| CN108398442A (en) * | 2018-02-11 | 2018-08-14 | 杨厚荣 | Online immersion microwave radar Moisture Meter and its measurement method are realized |
| CN108398442B (en) * | 2018-02-11 | 2021-05-11 | 杨厚荣 | Online immersion type microwave radar moisture meter and measurement method thereof |
| CN108918689A (en) * | 2018-04-09 | 2018-11-30 | 华南理工大学 | A kind of supersonic sounding direct wave elimination system and method for software and hardware combined adjustment |
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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 |