CN206330927U - Fault diagnosis device for FDR (fully drawn yarn) tubular soil moisture sensor - Google Patents
Fault diagnosis device for FDR (fully drawn yarn) tubular soil moisture sensor Download PDFInfo
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- CN206330927U CN206330927U CN201621467876.8U CN201621467876U CN206330927U CN 206330927 U CN206330927 U CN 206330927U CN 201621467876 U CN201621467876 U CN 201621467876U CN 206330927 U CN206330927 U CN 206330927U
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- support
- collar
- soil moisture
- support block
- leading screw
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- 239000002689 soil Substances 0.000 title claims abstract description 80
- 238000003745 diagnosis Methods 0.000 title abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 15
- 238000004088 simulation Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 230000005611 electricity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000012223 aqueous fraction Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The utility model relates to a fault diagnosis device for FDR tubular soil moisture sensor. Four leveling bolts are respectively fixed below the base, the stepping motor, an electric control device, a dovetail guide rail, a supporting block I, a supporting block II, a first support I and a first support II are respectively fixed on the base, a screw rod is arranged in a screw hole in the middle of a second support, a shaft roller at one end of the screw rod is arranged in an upper end hole of the supporting block I, a shaft roller at the other end of the screw rod penetrates through an upper end hole of the supporting block II to be connected with the stepping motor, a soil moisture environment simulation device is fixed on the second support, a metal sheet I and a metal sheet II are respectively bonded on two surfaces of the soil moisture environment simulation device, a proximity switch I and a lantern ring are fixed on the first support I, a proximity switch II and a lantern ring are fixed on the first support II, and the electric control device is. The utility model discloses reduce manual work volume by a wide margin, shortened measuring cycle, degree of automation is high, has improved failure diagnosis's work efficiency.
Description
Technical field
The utility model is related to a kind of trouble-shooter, specifically a kind of for FDR tubular soil moisture sensors
Trouble-shooter.
Background technology
Soil moisture sensor is that a kind of soil water-containing used in meteorological, agricultural, ecological and hydrological environment field is measured
Measuring appratus.Based on FDR（Frequency Domain Reflectometry, frequency domain bounce technique）The soil moisture sensor of principle
Mainly by a pair of circular metal ring groups into an electric capacity, soil therebetween serves as dielectric, and electric capacity constitutes a tune with oscillator
Humorous circuit, sensor capacitance and the dielectric constant of two interpolar measured mediums are proportional.Because the dielectric constant of water compares one
As medium dielectric constant it is much greater, so when the moisture increase in soil, its dielectric constant accordingly increases, and is passed during measurement
The capacitance that sensor is provided also rises therewith, accordingly, and the measurement frequency of sensor can also change.Passed using soil moisture
Frequency of the sensor in different soils water content changes to measure soil volumetric water content.Usually, a FDR tubular type soil water
Multiple electric capacity are included in sub-sensor, capacitance positions are adjustable, and the soil volumetric water content of different depth can be measured respectively.
At present, the fault diagnosis to FDR tubular soil moisture sensors is mainly by contrasting artificial observation soil moisture
Content is with sensor measurement data come what is carried out, and artificial observation uses China Meteorological Administration《Agrometeorological observation specification》It is defined to dry
Dry weight method.The major advantage for measuring soil moisture content using weighting method after dried is that precision is higher, measurement range is wide, but is existed
Following shortcoming：One, weighting method after dried is by being accomplished manually, and adopted soil sample must be fetched laboratory by field and be dried by it
Do, weigh, the water content of soil is obtained finally by calculating, therefore workload is big, efficiency is low；Two, measurement period is long, from soil
Drying is sampled, weighed, calculated and generally require longer time, it usually needs 24 hours, is comparatively fast also required to 5 ~ 12 hours, to fast
Speed measurement brings very big inconvenience；Three, soil texture is destroyed during sampling soil, long-term observation should not be pinpointed.Based on this, it is necessary to
Utility model one kind can quick diagnosis FDR tubular soil moistures sensor whether failure, do not destroy soil texture, can pinpoint
The automation equipment observed for a long time, to solve that conventional fault diagnosis method labor workload is big, efficiency is low, measurement period length, broken
Bad soil texture, the shortcoming observed for a long time should not be pinpointed.
The content of the invention
In order to solve that conventional fault diagnosis method labor workload is big, efficiency is low, measurement period length, destruction soil texture,
The shortcoming observed for a long time should not be pinpointed, the utility model is examined there is provided a kind of failure for FDR tubular soil moisture sensors
Disconnected device.
The utility model to achieve the above object, adopts the following technical scheme that realization：One kind is used for FDR tubular type soil
The trouble-shooter and method of moisture transducer, including stepper motor, leading screw, guide rail, be characterized in that：Also include base,
First support I, the collar, second support, soil moisture environment analogue means, electric control gear, leveling bolt, support block I, support block
IIth, first support II, proximity switch I, proximity switch II, sheet metal I, sheet metal II；
Two leveling bolts, the stepper motor, electric control gear, swallow are fixed below the support block of the base two ends respectively
Tail guide rail, support block I, support block II, first support I and first support II are separately fixed on base, what submounts were fixed
It is dovetail guide between support block I, support block II, stepper motor and electric control gear are arranged on the side of support block II, described the
Two supports are arranged on second support by the dovetail groove of lower end and being equipped with dovetail guide for dovetail guide, the leading screw
In middle screw, the external screw thread of leading screw and the internal thread threaded of leading screw screw, the beaming roller of leading screw one end set support block I
In axle sleeve in upper end hole, the beaming roller of the leading screw other end passes through shaft coupling and stepping electricity through the axle sleeve in the upper end hole of support block II
Machine is connected, and the soil moisture environment analogue means is fixed on the arcwall face of second support upper end, in soil moisture environment mould
Sheet metal I, sheet metal II are bonded with respectively on two faces for intending device, and the He of proximity switch I is fixed with first support I
One collar, is fixed with proximity switch II and a collar in first support II, the ring hearts of two collars respectively with the soil water
With one heart, the electric control gear is connected the time-sharing environment analogue means hole heart with stepper motor, and driving stepper motor leading screw is rotated, and makes leading screw
On second support moved back and forth along dovetail guide.
Compared with prior art, the utility model has advantages below：
Sampling soil in existing method is replaced using soil moisture environment analogue means, manual working is greatly reduced
Amount, shortens measurement period, high degree of automation saves human and material resources, improves the operating efficiency of fault diagnosis, and
Soil texture is not destroyed, adjustable point is observed for a long time.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is structural decomposition diagram of the present utility model；
Fig. 3 is the structural representation of the utility model collar；
Fig. 4 is the profile of soil moisture environment analogue means.
Embodiment
In order to further illustrate technological means and its effect that the utility model is taken, with reference to preferred embodiment
And its accompanying drawing is made further to retouch in detail to the utility model applied to the trouble-shooter of FDR tubular soil moisture sensors
State.
As shown in Figures 1 to 4, a kind of trouble-shooter for FDR tubular soil moisture sensors, including stepping electricity
Machine 4, leading screw 5, guide rail 6, also including base 1, first support 2, the collar 3, second support 7, soil moisture environment analogue means 8,
Electric control gear 9, leveling bolt 10, support block I 11, support block II 12.
Soil moisture environment analogue means 8 is closed-type circular cavity, and hole 8-1 is provided with closed-type circular cavity face,
The water 8-2 of standard grammes per square metre is encapsulated in closed-type circular cavity.
The collar 3 includes upper collar 3-1, lower collar 3-2, stud 3-3, nut 3-4, bearing pin 3-5.
Upper collar 3-1 one end is semicircular bodies, and the other end is rectangle platform, stud bolt hole is provided with rectangular mesa, in semicircle
The end face of body is provided with sheet projection 3-1-1, and open slot 3-1-1 is provided with sheet projection 3-1-1 faces.
Lower collar 3-2 is semicircular bodies, screw 3-2-3 is provided with the median surface of semicircular bodies, in semicircular bodies side
Cambered surface be provided with the 3-2-1 of open slot I, on the platform of semicircular bodies opposite side be provided with the 3-2-2 of open slot II, in open slot I
Pin shaft hole is respectively equipped with the 3-2-1 and 3-2-2 of open slot II two walls.
Stud 3-3 lower ends are placed in the 3-2-2 of lower collar 3-2 open slots II, are connected to down stud 3-3 by bearing pin 3-5
On collar 3-2, stud 3-3 upper ends can left and right expansion in the 3-2-2 of open slot II.
Upper collar 3-1 sheet projection 3-1-2 is arranged in the lower collar 3-2 3-2-1 of open slot I, by bearing pin 3-5 with
Lower collar 3-2 links together, and upper collar 3-1 and lower collar 3-2 are deployable or close.
During closure, upper collar 3-1 rectangle platform is relative with lower collar 3-2 platforms to be connect, and stud 3-3 upper ends are placed in collar 3-
In 1 open slot, upper collar 3-1, lower collar 3-2 are fixed together by nut 3-4, upper collar 3-1 semicircular bodies and trapped
Ring 3-2 semicircular bodies are corresponding to constitute a ring.
Spiral shell dress fixes two leveling bolts 10 respectively below the two ends support block 1-1 of base 1,
By stepper motor 4, electric control gear 9, dovetail guide 6, support block I 11, support block II 12, first support I 2 and first
Support II 13 is separately fixed on base 1, and base 1 is led between the fixed support block I 11 of spiral shell dress, support block II 12 for dovetail above
Rail 6, stepper motor 4 and electric control gear 9 are arranged on the side of support block II 12, dovetail groove and swallow of the second support 7 by lower end
Tail guide rail 6 is equipped with dovetail guide 6, and leading screw 5 is arranged in the screw 7-1 in the middle of second support 7, leading screw 5 it is outer
The internal thread threaded of screw thread and the screw 7-1 of leading screw 5, the beaming roller of the one end of leading screw 5 sets the axle sleeve in the upper end hole of support block I 11
In, the beaming roller of the other end of leading screw 5 is connected through the axle sleeve in the upper end hole of support block II 12 by shaft coupling with stepper motor 4, will
Soil moisture environment analogue means 8 is bonded on the arcwall face 7-2 of the upper end of second support 7, in soil moisture environment analogue means 8
Two faces on be bonded with sheet metal I 16, sheet metal II 17 respectively, proximity switch I 14 is fixed with first support I 2
With a collar 3, proximity switch II 15 and a collar 3, the ring heart difference of two collars 3 are fixed with first support II 13
Concentric with the hole 8-1 hearts of soil moisture environment analogue means 8, electric control gear 9 is connected by wire with stepper motor 4, stepper motor 4
Driving leading screw 5 is rotated, and the second support 7 on leading screw 5 is moved back and forth along dovetail guide 6.
A kind of detection method of trouble-shooter for FDR tubular soil moisture sensors, step is as follows：
The first step, preparation,
By on device ground disposed within, device is set steadily to place by adjusting four leveling bolts 10, adjustment work is complete
Into；
In order to improve operating efficiency of the present utility model and accuracy of measurement, soil moisture environment analogue means 8 uses PVC
Material makes closed-type circular cavity, and inside cavity all seals water 8-2, can be steady for a long time which prevent water 8-2 loss
The soil environment of the fixed certain water content of simulation.
By upper collar 3-1 and lower collar the 3-2 expansion of two collars 3, soil moisture sensor is then passed through into the soil water
The hole 8-1 of time-sharing environment analogue means 8, makes on the lower collar 3-2 that soil moisture sensor head is placed in first support II 13,
Afterbody is placed on the lower collar 3-2 in first support I 2, is adjusted soil moisture sensor putting position, is sensed soil moisture
The electric capacity of all positions is between first support I 2 and first support II 13 in device, after putting steadily, will by nut 3-4
Upper collar 3-1 and lower collar 3-2 are closed together, so as to soil moisture sensor be fixed, the tube wall of soil moisture sensor
Gap between the 8-1 walls of hole is no more than 1mm, it is ensured that the authenticity of soil environment simulation.
Device is powered and started shooting, its connection access host computer, soil moisture sensor is powered, the access of its data communication line
Host computer, completes preparation.
Second step, by host computer to electric control gear 9 send reset command, control stepper motor 4 driving second support 7
Drive soil moisture environment analogue means 8）The position of proximity switch II 15 is moved, when metal on soil moisture environment analogue means 8
When thin slice II 17 is 2 ~ 3mm away from proximity switch II 15, proximity switch II 15 outputs signals to electric control gear 9, controls stepper motor 4
Stop operating, now, soil moisture environment analogue means 8 stops at reset position, complete to reset work.
In order to prevent that maloperation from causing stepper motor 4 to rotate for a long time, driving soil moisture environment analogue means 8 continue to
The direction of first support I 2 is moved, and is collided with first support I 2, and proximity switch I 14 is secured in first support I 2, when
When sheet metal I 16 is 2 ~ 3mm away from proximity switch I 14 on soil moisture environment analogue means 8, the output signal of proximity switch I 14
To electric control gear 9, control stepper motor 4 stops operating, and plays a part of protection device；
Each layer capacitance in soil moisture sensor, the i.e. nearest electric capacity in range sensor head are determined by product description
For the first layer capacitance, remaining electric capacity be followed successively by order the second layer capacitance, third layer electric capacity to n-th layer electric capacity particular location with
And spacing, the distance of the now layer capacitance of soil moisture environment analogue means 8 and first is then measured using instrument, so that it is determined that
Soil moisture environment analogue means 8 is from reset position to the displacement enveloped completely required for the first layer capacitance, by upper
Position machine sends movement directive to electric control gear 9, and the control driving second support 7 of stepper motor 4 drives soil moisture environment simulation dress
Put 8 and first layer capacitance is moved to by reset position, treat to read the soil moisture that sensor is exported on host computer later in 2 ~ 3 minutes
Data, by being compared with soil moisture environment analogue means standard value, actual measured value is then sentenced in standard value error range
Disconnected first layer capacitance is normal, otherwise judges first layer capacitive faults.
Third step, according to the first layer capacitance and the spacing of the second layer capacitance determined in second step, pass through host computer
Send movement directive to electric control gear 9, the control driving second support 7 of stepper motor 4 drive soil moisture environment analogue means 8 by
First layer capacitance is moved at the second layer capacitance, treats to read the soil water fraction that sensor is exported on host computer later in 2 ~ 3 minutes
According to by being compared with soil moisture environment analogue means standard value, actual measured value then judges in standard value error range
Second layer capacitance is normal, otherwise judges second layer capacitive faults.
Four steps, using third step method, fault diagnosis is carried out to third layer electric capacity to n-th layer electric capacity successively,
So as to judge that soil moisture sensor whether there is failure, and abort situation.
Claims (3)
1. a kind of trouble-shooter for FDR tubular soil moisture sensors, including stepper motor（4）, leading screw（5）, lead
Rail（6）, be characterized in that：Also include base（1）, first support I（2）, the collar（3）, second support（7）, soil moisture environment
Analogue means（8）, electric control gear（9）, leveling bolt（10）, support block I（11）, support block II（12）, first support II（13）、
Proximity switch I（14）, proximity switch II（15）, sheet metal I（16）, sheet metal II（17）；
The base（1）Two ends support block（1-1）Below fix two leveling bolts respectively（10）,
The stepper motor（4）, electric control gear（9）, dovetail guide（6）, support block I（11）, support block II（12）, first support
Ⅰ（2）With first support II（13）It is separately fixed at base（1）On, base（1）The support block I fixed above（11）, support block II
（12）Between be dovetail guide（6）, stepper motor（4）And electric control gear（9）It is arranged on support block II（12）Side, described
Two supports（7）Pass through the dovetail groove and dovetail guide of lower end（6）Be equipped with dovetail guide（6）On, the leading screw（5）If
Put in second support（7）Middle screw（7-1）In, leading screw（5）External screw thread and leading screw（5）Screw（7-1）Internal thread spiral shell
Connect cooperation, leading screw（5）The beaming roller of one end sets support block I（11）In axle sleeve in upper end hole, leading screw（5）The beaming roller of the other end is worn
Cross support block II（12）Axle sleeve in upper end hole passes through shaft coupling and stepper motor（4）Connection, the soil moisture environment simulation
Device（8）It is fixed on second support（7）The arcwall face of upper end（7-2）On, in soil moisture environment analogue means（8）Two faces
It is upper to be bonded with sheet metal I respectively（16）, sheet metal II（17）, in first support I（2）On be fixed with proximity switch I（14）
With a collar（3）, in first support II（13）On be fixed with proximity switch II（15）With a collar（3）, two collars（3）
Ring heart respectively with soil moisture environment analogue means（8）Hole（8-1）The heart is concentric, the electric control gear（9）With stepper motor（4）
Connection, stepper motor（4）Drive leading screw（5）Rotate, make leading screw（5）On second support（7）Along dovetail guide（6）It is reciprocal to move
It is dynamic.
2. the trouble-shooter according to claim 1 for FDR tubular soil moisture sensors, it is characterised in that：
Described soil moisture environment analogue means（8）For closed-type circular cavity, hole is provided with closed-type circular cavity face（8-
1）, water is packaged with closed-type circular cavity（8-2）.
3. the trouble-shooter according to claim 1 for FDR tubular soil moisture sensors, it is characterised in that：
The described collar（3）Including the upper collar（3-1）, lower collar（3-2）, stud（3-3）, nut（3-4）, bearing pin（3-5）, it is described on
The collar（3-1）One end is semicircular bodies, and the other end is rectangle platform, and open slot is provided with rectangular mesa（3-1-1）, in semicircle
The end face of body is raised provided with sheet（3-1-2）, it is raised in sheet（3-1-2）Face is provided with pin shaft hole；
The lower collar（3-2）For semicircular bodies, screw is provided with the face of semicircular bodies（3-2-3）, in semicircular bodies side
Cambered surface be provided with open slot I（3-2-1）, open slot II is provided with the platform of semicircular bodies opposite side（3-2-2）, in opening
Groove I（3-2-1）With open slot II（3-2-2）Two walls on be respectively equipped with pin shaft hole；
The stud（3-3）Lower end is placed in lower collar（3-2）Open slot II（3-2-2）It is interior, pass through bearing pin（3-5）By stud（3-
3）It is connected to lower collar（3-2）On, stud（3-3）Upper end is in open slot II（3-2-2）It is interior can left and right expansion；
The upper collar（3-1）Sheet it is raised（3-1-2）It is arranged on lower collar（3-2）Open slot I（3-2-1）In, pass through
Bearing pin（3-5）With lower collar（3-2）Link together,
The upper collar（3-1）And lower collar（3-2）Deployable or closure；
During closure, the upper collar（3-1）Rectangle platform and lower collar（3-2）Platform is relative to be connect, stud（3-3）Upper end is placed in the collar
（3-1）Open slot（3-1-1）It is interior, pass through nut（3-4）By the upper collar（3-1）, lower collar（3-2）It is fixed together, the upper collar
（3-1）Semicircular bodies and lower collar（3-2）Semicircular bodies are corresponding to constitute a ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621467876.8U CN206330927U (en) | 2016-12-29 | 2016-12-29 | Fault diagnosis device for FDR (fully drawn yarn) tubular soil moisture sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621467876.8U CN206330927U (en) | 2016-12-29 | 2016-12-29 | Fault diagnosis device for FDR (fully drawn yarn) tubular soil moisture sensor |
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| Publication Number | Publication Date |
|---|---|
| CN206330927U true CN206330927U (en) | 2017-07-14 |
Family
ID=59292735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621467876.8U Withdrawn - After Issue CN206330927U (en) | 2016-12-29 | 2016-12-29 | Fault diagnosis device for FDR (fully drawn yarn) tubular soil moisture sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206330927U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106645314A (en) * | 2016-12-29 | 2017-05-10 | 中环天仪（天津）气象仪器有限公司 | Fault diagnosis device for FDR (Frequency Domain Reflectiometry) tube type soil moisture sensor and detection method |
| CN107918004A (en) * | 2017-12-27 | 2018-04-17 | 河南中原光电测控技术有限公司 | A kind of cannula type soil moisture detector calibrating installation |
| CN111337486A (en) * | 2020-04-06 | 2020-06-26 | 杜大庆 | Heavy metal pollution detection device for environmental protection |
-
2016
- 2016-12-29 CN CN201621467876.8U patent/CN206330927U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106645314A (en) * | 2016-12-29 | 2017-05-10 | 中环天仪（天津）气象仪器有限公司 | Fault diagnosis device for FDR (Frequency Domain Reflectiometry) tube type soil moisture sensor and detection method |
| CN106645314B (en) * | 2016-12-29 | 2023-10-03 | 中环天仪（天津）气象仪器有限公司 | Fault diagnosis device and detection method for FDR tubular soil moisture sensor |
| CN107918004A (en) * | 2017-12-27 | 2018-04-17 | 河南中原光电测控技术有限公司 | A kind of cannula type soil moisture detector calibrating installation |
| CN111337486A (en) * | 2020-04-06 | 2020-06-26 | 杜大庆 | Heavy metal pollution detection device for environmental protection |
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