CN108444764A - A kind of grain sampler for surveying sampling depth - Google Patents
A kind of grain sampler for surveying sampling depth Download PDFInfo
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- CN108444764A CN108444764A CN201810228630.2A CN201810228630A CN108444764A CN 108444764 A CN108444764 A CN 108444764A CN 201810228630 A CN201810228630 A CN 201810228630A CN 108444764 A CN108444764 A CN 108444764A
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- sampling
- resistance
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- circuit
- sampling head
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
- G01N2001/1418—Depression, aspiration
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Life Sciences & Earth Sciences (AREA)
- Electromagnetism (AREA)
- Remote Sensing (AREA)
- Radar, Positioning & Navigation (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Hydrology & Water Resources (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a kind of grain samplers for surveying sampling depth, are related to food storage field；Including sampling storage room, the sampling storage room connection sampling delivery hose, the sampling hose connects probe tube, infrared range-measurement system is provided on the probe tube, and the infrared range-measurement system connects microcontroller, and the microcontroller connects display screen；Infrared range-measurement system includes radiating circuit, gating circuit, filter amplification circuit and receiving circuit；The present invention solve the problems, such as current grain sampler can not real-time display sampling depth, realize sampling and meanwhile detect sampling quality and display quality, convenient for improve sampling precision and understanding sampling progress.
Description
Technical field
The present invention relates to food storage fields, and in particular to a kind of grain sampler for surveying sampling depth.
Background technology
As the country is continuously increased agricultural and sideline products plantation amount, wheat in bulk, the quality inspection of corn and soybean are aobvious
Particularly important, now widely used grain sample divider is obtained, is exactly sufficiently mixed the grains sample that skewer takes, uniformly
Divide a kind of common detection instrument taken；Have the characteristics that simple in structure, easy to use, sample mixing is uniform, divide sample error small, it is suitable extensively
For soybean, paddy, wheat, corn, etc. the mixing of particles edible oil material sample divide sample.But existing for existing grain sampler
Problem：Sampler often samples primary needs and sampling sample is carried out next sub-sampling again after being taken out in sampler, is manually inserted into
Sample, time-consuming and laborious, operation is not easy；Sampler can not learn the depth residing for sampling sample per sub-sampling, lead to not essence
Really control sampling, subsequent detection data reliability can not ensure.
Invention content
It is an object of the invention to：A kind of grain sampler for surveying sampling depth is provided, solves current grain sampling
Device can not real-time display sampling depth the technical issues of.
The technical solution adopted by the present invention is as follows：
A kind of grain sampler for surveying sampling depth, including sampling storage room, the sampling storage room connection sampling are defeated
It send hose, the sampling hose to connect probe tube, infrared range-measurement system, the infrared range-measurement system connection is provided on the probe tube
Microcontroller, the microcontroller connect display screen.
Preferably, the infrared range-measurement system includes radiating circuit, gating circuit, filter amplification circuit and receiving circuit, institute
It states receiving circuit, filter amplification circuit, gating circuit, microcontroller and radiating circuit to be sequentially electrically connected, gating circuit includes RS
Trigger.
Preferably, the radiating circuit connection is as follows：The both ends transmitting terminal LS1 one end parallel resistance R4, transmitting terminal LS1 also with
It is grounded after the connection of triode Q2 emitters, the transmitting terminal LS1 other ends are passed through via after capacitance C1 connecting triode Q2 collectors by electricity
Resistance R3 meets VCC, and triode Q2 base stages are followed by VCC via capacitance C2 connection resistance R1, and capacitance C2 is also connected with NAND gate U1AD outputs
End, NAND gate U1AD input terminals are separately connected microcontroller pin P1.6 and pin P1.7.
Preferably, the receiving circuit connection is as follows：The one end receiving terminal LS2 input end grounding, the connection of other end input terminal
Amplifier U3A normal phase input ends are connected after resistance R8, resistance R8 is also connected with resistance R5 and meets VCC, is also connected with resistance R6 ground connection；Amplifier
U3A inverting inputs connect resistance R7 ground connection, and resistance R7 connects amplifier U3A output ends, amplifier U3A outputs after being also connected with resistance R9
Amplifier U2A normal phase input ends are connected after the connection resistance R11 of end, amplifier U2A inverting inputs connect resistance R10 ground connection, resistance R10
Amplifier U2A output ends are connected after being also connected with resistance R12, amplifier U2A output ends connect the input terminal of filtering and amplifying circuit.
Preferably, the probe tube lower end is provided with rotation sampling head, and the rotation sampling head is driven by sampling head motor.
Preferably, inner tube is arranged in the probe tube, said inner tube is hollow-core construction, is fixedly installed below said inner tube
There is a rotation sampling head, the sampling head motor is set above said inner tube said inner tube is made to be done under the drive of sampling head motor and revolve
Transhipment is dynamic.
Preferably, the section of the rotation sampling head is trapezoidal, and the rotation sampling head is made of hard bristle, the rotation
Turn to be provided with the air duct penetrated through with said inner tube on sampling head, the grain of sampling is delivered to the sampling storage room through air duct.
Preferably, handle is provided on the probe tube, the infrared range-measurement system is arranged below the handle.
In conclusion by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
1. infrared range-measurement system is arranged on the probe tube, and come out by microcontroller real-time display, detection people can be made
Member understands depth selection in real time.
2. using the rotation sampling head, rotating force makes probe tube be easier to be downwardly into grain heap and be sampled.
3. being arranged with inner tube in probe tube, inner tube is hollow-core construction, and inner tube is fixedly connected with rotation sampling head, rotation sampling
It is provided with air duct on head, grain to be sampled is enable to be transmitted in sampling storage room from air duct；Rotation sampling head takes rotation
The outer grain in rotation sampling head of sample head separates, and so that the grain in rotation sampling head is more easily transmitted under the action of negative pressure and takes
Sample storage room.
4. rotation sampling head is made of hard bristle, compared to metal coupon, during downsampled, avoid making grain
Food is impaired.
Description of the drawings
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein：
Fig. 1 is the overall structure figure of the present invention；
Fig. 2 is the structure chart of rotational head in the present invention；
Fig. 3 is the sectional view of rotational head in the present invention；
Fig. 4 is circuit diagram of the present invention；
Reference numeral：1- samples storage room, and 2- samples delivery hose, 3- probe tubes, 4- handles, 5- rotation sampling heads, 6-
Sampling head motor, 7- inner tubes, the air ducts 8-, 15- infrared range-measurement systems.
Specific implementation mode
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
It elaborates with reference to Fig. 1-4 couples of present invention.
Embodiment 1
A kind of grain sampler for surveying sampling depth, including sampling storage room 1, the sampling connection sampling conveying of storage room 1
Hose 2, sampling hose connect probe tube 3, and infrared range-measurement system 15 is provided on probe tube 3, and infrared range-measurement system 15 connects microcontroller,
Microcontroller connects display screen.
Infrared range-measurement system includes radiating circuit, gating circuit, filter amplification circuit and receiving circuit, receiving circuit, filtering
Amplifying circuit, gating circuit, microcontroller and radiating circuit are sequentially electrically connected, and gating circuit includes rest-set flip-flop.
Radiating circuit connection is as follows：It is also sent out with triode Q2 the both ends transmitting terminal LS1 one end parallel resistance R4, transmitting terminal LS1
Be grounded after emitter-base bandgap grading connection, the transmitting terminal LS1 other ends via after capacitance C1 connecting triode Q2 collectors through by resistance R3 meeting VCC,
Triode Q2 base stages are followed by VCC via capacitance C2 connection resistance R1, and capacitance C2 is also connected with NAND gate U1AD output ends, NAND gate
U1AD input terminals are separately connected microcontroller pin P1.6 and pin P1.7.
Receiving circuit connection is as follows：The one end receiving terminal LS2 input end grounding, other end input terminal connect after connecting resistance R8
Amplifier U3A normal phase input ends, resistance R8 are also connected with resistance R5 and meet VCC, are also connected with resistance R6 ground connection；Amplifier U3A inverting inputs
Resistance R7 ground connection is connected, resistance R7 connects amplifier U3A output ends after being also connected with resistance R9, and amplifier U3A output ends connect resistance R11
Amplifier U2A normal phase input ends are connected afterwards, and amplifier U2A inverting inputs connect resistance R10 ground connection, and resistance R10 is also connected with resistance R12
Amplifier U2A output ends are connected afterwards, and amplifier U2A output ends connect the input terminal of filtering and amplifying circuit.
Filter amplification circuit connection is as follows：The input terminal of filter amplification circuit is sequentially connected with resistance R19, capacitance C5 is followed by
Ground, resistance R19 are also connected with capacitance C6 and are grounded via resistance R20, and resistance R19 is also connected with connection amplifier U6A outputs after resistance R23
End, capacitance C6 are also connected with amplifier U6A normal phase input ends, are grounded after amplifier U6A inverting inputs connection resistance R10, amplifier U6A is anti-
Phase input terminal connects amplifier U6A output ends after being also connected with resistance R22, and amplifier U6A output ends are via resistance R21 connection diodes
It is grounded after D11, amplifier U6A output ends are also connected with microcontroller pin P1.2.
Operation principle：Gating circuit connect microcontroller pin P1.7, NAND gate input terminal connect microcontroller pin P1.5 and
P1.6, switch S1 connection resistance R14 meet VCC, and microcontroller pin P3.2 is connected after connection resistance R15, and microcontroller control valve is real
Existing different subregions storage, P1.0, P1.1, P1.3 pin of microcontroller are separately connected valve K1, K2, K3；Microcontroller uses
ATC89C51 series when closure switch S1, launches gate-control signal, the frequency of the signal is when microcontroller powers on from P1.6
4kHz, while starting the timer TMR1 inside microcontroller, it starts counting up；The gate-control signal often emits the waveform of a cycle,
Infrared ray will emit 10 complete waveforms so that microcontroller generates the infrared signal of 40kHz；The period of ultrasonic wave is
40kHz=1025ms, and the period of gate-control signal is 4kHz=125ms；Hot outer receiving terminal LS2 receives reflected infrared
When line, counter stops counting, and time t can be found out according to the counting of counter and the period of gate-control signal；Rest-set flip-flop is certainly
The transmitting and stopping of dynamic control infrared ray；Since microcontroller pin at most only has 20mA~25mA pull-up currents, and infrared emission
Device minimum needs the electric current of 60mA, so adding level-one amplifying circuit after NAND gate U1AD to amplify electric current, to complete infrared ray
Transmitting；Since the infrared signal that infrared receiver end LS2 is received is very faint, after resistance and capacitor filtering, at it
After need plus ultrasonic wave receive amplifying circuit；Amplifier is homophase input, and level-one amplifies 10 times, and two level amplifies 100 times, and circuit diagram provides
It is level-one amplification, amplifier uses dual power supply, is positive and negative 5V；Finally found out when sampler does not decline according to s=vt from taking
When the distance of sample plane and decline with a distance from sample plane；By calculate sampler do not decline when with a distance from sample plane and
When decline depth selection information is acquired from the distance difference of sample plane.Microcontroller uses TFT using STC89 series, display screen
Color screen, infrared range-measurement system use miniature infrared tube, and handle is provided on probe tube, and miniature infrared tube is arranged below handle, this
Infrared range-measurement system is arranged in invention on probe tube, and is come out by microcontroller real-time display, testing staff can be made to understand in real time
Depth selection and specific sampling progress.
Embodiment 2
3 lower end of probe tube is provided with rotation sampling head 5, and rotation sampling head 5 is driven by sampling head motor 6,3 inner sleeve of probe tube
Equipped with inner tube 7, inner tube 7 is hollow-core construction, and 7 lower section of inner tube is fixedly installed rotation sampling head 5, is taken described in 7 top setting of inner tube
Sample head motor 6 makes inner tube 7 rotate under the drive of sampling head motor 6, and the section of rotation sampling head 5 is trapezoidal, rotation
It is provided with the air duct 8 penetrated through with inner tube 7 on sampling head 5, the grain of sampling is delivered to sampling storage room 1 through air duct 8.Pass through rotation
Turn sampling head 5 and reduce sampler to go deep into the resistance of sample, avoids existing going deep into the time-consuming and laborious disadvantage of sample manually；Rotation
Sampling head 5 uses hard bristle sampling head, convenient for quickly going deep into sample while protection sample；Rotating sampling head 5 will revolve
Turn the outer grain in rotation sampling head of sampling head to separate, the grain in rotation sampling head 5 is made more easily to pass under the action of negative pressure
Sampling storage room 1 is transported to, sampling efficiency is accelerated, avoids the blocking in sampling channel.
Claims (8)
1. a kind of grain sampler for surveying sampling depth, including sampling storage room (1), sampling storage room (1) connection takes
Sample delivery hose (2), the sampling hose connection probe tube (3), it is characterised in that：It is provided on the probe tube (3) infrared
Rangefinder (15), the infrared range-measurement system (15) connect microcontroller, and the microcontroller connects display screen.
2. a kind of grain sampler for surveying sampling depth according to claim 1, which is characterized in that the infrared distance measurement
Instrument includes radiating circuit, gating circuit, filter amplification circuit and receiving circuit, the receiving circuit, filter amplification circuit, gate
Circuit, microcontroller and radiating circuit are sequentially electrically connected, and gating circuit includes rest-set flip-flop.
3. a kind of grain sampler with partitioned organization according to claim 2, it is characterised in that：The radiating circuit connects
It connects as follows：The both ends transmitting terminal LS1 one end parallel resistance R4, transmitting terminal LS1 is grounded after also being connect with triode Q2 emitters, transmitting
The end LS1 other ends are via, through meeting VCC by resistance R3, triode Q2 base stages are via capacitance after capacitance C1 connecting triode Q2 collectors
C2 connection resistance R1 is followed by VCC, and capacitance C2 is also connected with NAND gate U1AD output ends, and NAND gate U1AD input terminals are separately connected monolithic
Power traction foot P1.6 and pin P1.7.
4. a kind of grain sampler with partitioned organization according to claim 3, it is characterised in that：The receiving circuit connects
It connects as follows：The one end receiving terminal LS2 input end grounding, other end input terminal connect amplifier U3A normal phase input ends after connecting resistance R8,
Resistance R8 is also connected with resistance R5 and meets VCC, is also connected with resistance R6 ground connection；Amplifier U3A inverting inputs connect resistance R7 ground connection, resistance
R7 connects amplifier U3A output ends after being also connected with resistance R9, and connection amplifier U2A positives are defeated after amplifier U3A output ends connect resistance R11
Enter end, amplifier U2A inverting inputs connect resistance R10 ground connection, and resistance R10 is also connected with connection amplifier U2A outputs after resistance R12
End, amplifier U2A output ends connect the input terminal of filtering and amplifying circuit.
5. a kind of grain sampler for surveying sampling depth according to claim 1, which is characterized in that the probe tube
(3) lower end is provided with rotation sampling head (5), and the rotation sampling head (5) is driven by sampling head motor (6).
6. a kind of grain sampler for surveying sampling depth according to claim 5, which is characterized in that the probe tube
(3) inner tube (7) is arranged in, said inner tube (7) is hollow-core construction, and rotation sampling head is fixedly installed below said inner tube (7)
(5), the sampling head motor (6) is arranged above said inner tube (7) makes said inner tube (7) under the drive of sampling head motor (6)
It rotates.
7. a kind of grain sampler for surveying sampling depth according to claim 6, which is characterized in that the rotation sampling
Head (5) section be it is trapezoidal, the rotation sampling head (5) is made of hard bristle, be provided on the rotation sampling head (5) and
The air duct (8) of said inner tube (7) perforation, the sampling storage room (1) is delivered to by the grain of sampling through air duct (8).
8. a kind of grain sampler for surveying sampling depth according to claim 1, which is characterized in that the probe tube
(3) handle (4) is provided on, infrared range-measurement system (15) setting is below the handle (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810228630.2A CN108444764A (en) | 2018-03-20 | 2018-03-20 | A kind of grain sampler for surveying sampling depth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810228630.2A CN108444764A (en) | 2018-03-20 | 2018-03-20 | A kind of grain sampler for surveying sampling depth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108444764A true CN108444764A (en) | 2018-08-24 |
Family
ID=63195940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810228630.2A Withdrawn CN108444764A (en) | 2018-03-20 | 2018-03-20 | A kind of grain sampler for surveying sampling depth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108444764A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109323881A (en) * | 2018-09-25 | 2019-02-12 | 许昌农科种业有限公司 | A kind of Seed Inspection extraction element |
| CN109932217A (en) * | 2019-04-22 | 2019-06-25 | 安徽理工大学 | A kind of metallurgical raw material sampler for sampling |
| CN113933109A (en) * | 2021-10-22 | 2022-01-14 | 黑龙江省天润检验检测研究院有限公司 | Food detection sampling equipment |
-
2018
- 2018-03-20 CN CN201810228630.2A patent/CN108444764A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109323881A (en) * | 2018-09-25 | 2019-02-12 | 许昌农科种业有限公司 | A kind of Seed Inspection extraction element |
| CN109932217A (en) * | 2019-04-22 | 2019-06-25 | 安徽理工大学 | A kind of metallurgical raw material sampler for sampling |
| CN113933109A (en) * | 2021-10-22 | 2022-01-14 | 黑龙江省天润检验检测研究院有限公司 | Food detection sampling equipment |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180824 |
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| WW01 | Invention patent application withdrawn after publication |