CN101266223A - Milk conductance dynamic on-line detection and milk amount metering system - Google Patents
Milk conductance dynamic on-line detection and milk amount metering system Download PDFInfo
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- CN101266223A CN101266223A CNA2007100569313A CN200710056931A CN101266223A CN 101266223 A CN101266223 A CN 101266223A CN A2007100569313 A CNA2007100569313 A CN A2007100569313A CN 200710056931 A CN200710056931 A CN 200710056931A CN 101266223 A CN101266223 A CN 101266223A
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Abstract
A milk conductive dynamic online detecting and milk amount metering system comprises a standard electrode, an approval electrode, a collecting electrode, a metering solenoid valve, a measuring circuit, a control circuit and a center processing unit, wherein the standard electrode, the approval electrode and the collecting electrode are mounted in the metering cup and the control circuit is composed of a standard wave form generating circuit and a metering solenoid valve control circuit. The metering solenoid valve control circuit comprises a drive circuit and a high pressure buffer circuit. The electric signals collected by the approval electrode and the collecting electrode are respectively approved with the standard basis generating circuit and are input into the central processing unit by the filter shaping circuit, amplifying circuit, high pressure linear buffer circuit and A/D switching circuit and output on the liquid crystal screen or upper PC data band. The invention has features of high accuracy in measurement, effectively reducing the electric polarization of the milk, safety and stability.
Description
Technical field:
The present invention relates to a kind of milk electricity and lead dynamic online detection and milkmeter amount system.
Background technology:
Carrying out the transition to automation and intelligentification by in the past hand milking milks in the process, main is prevent disease ox milk warehouse-in, thereby at first line of matter production of suckling--in the milk Room, the online detection of dynamic of fresh milk seems particularly important, is directly connected to the safety problem of the whole people with milk.And electricity to lead be a main reflection to milk matter index.And the online detection of dynamic environment that present raw milk's electricity is led is more abominable, milk matter self has high-pressure electrostatic and adds the stray current source, the impact of big disturbance or even indefinite degree is generally arranged in the milk solution, be attended by the not steam bubble of certainty ratio, and have multiple electrochemical phenomenons such as charing, polarization, measure thereby cause potential electrode to pollute influence easily.Simultaneously, also there is same problem in the on-line metering to the milk amount.
Summary of the invention:
Purpose of the present invention just is to overcome above-mentioned the deficiencies in the prior art, and provide a kind of milk electricity to lead dynamic online detection and milkmeter amount system, the measuring accuracy height of this system and can reduce effectively milk matter the electric polarization phenomenon, have security and stability.
Technical scheme of the present invention is: a kind of milk electricity is led dynamic online detection and milkmeter amount system, it is characterized in that: by power supply, normal electrode, check and approve electrode, acquisition electrode, metering solenoid valve, metering circuit, control circuit and center processing unit and form; Normal electrode, check and approve electrode and acquisition electrode is installed in the jigger; Control circuit is made up of reference waveform generative circuit and metering solenoid valve control circuit, the input port of reference waveform generative circuit is connected with the waveform modulated output terminal of CPU (central processing unit), receive the waveform modulated signal that it sends, the output port of reference waveform generative circuit is connected with normal electrode, makes it generate trapezoidal alternating voltage drive signal; The metering solenoid valve control circuit is made up of driving circuit and high pressure buffer circuit, the solenoid-driven output terminal of CPU (central processing unit) is connected with the input port of high pressure buffer circuit, the output port of high pressure buffer circuit is connected with the input port of driving circuit, and the output port of driving circuit is connected with metering solenoid valve; Metering circuit is connected to form successively by standard base generative circuit, filtering shaping circuit, amplifying circuit, high pressure circuit linearity insulating circuit and A/D change-over circuit; Check and approve the back with standard base generative circuit respectively and fall by filtering shaping circuit, amplifying circuit, high pressure circuit linearity insulating circuit and the input of A/D change-over circuit and carry out outputing in liquid crystal display or the upper PC database after the software processes in the CPU (central processing unit) by checking and approving electric signal in electrode and the acquisition electrode collecting milk.
The present invention can also adopt following technical measures:
Above-mentioned reference waveform generative circuit is connected to form successively by phase inverter U5B, photoelectronic coupler U7D, accurate adjustable potentiometer R42 and operational amplifier U8A.
Said reference ground generative circuit is connected to form successively by accurate adjustable potentiometer R43, operational amplifier U8B and some electric capacity thereof;
Above-mentioned A/D change-over circuit is two TLC0831 chips.
Driving circuit in the above-mentioned metering solenoid valve control circuit and high pressure buffer circuit are connected to form successively by photoelectronic coupler U7A, field effect transistor Q2, sustained diode 3 and filter capacitor C42, C34, C35.
Above-mentioned CPU (central processing unit) adopts 8052 family chips.
Above-mentioned power supply adopts high isolated supplies system.
The present invention has following advantage and good effect:
1, the measuring junction voltage of native system is little and stable, for high-acruracy survey provides comparatively intact platform.Terminal voltage drives with trapezoidal interchange ripple, has effectively reduced the problems such as electric polarization of milk matter.
2, system adopts the differential type mensuration, and successfully obtains stablizing sampled point with this.This method can effectively improve the precision and the degree of stability of online detection.Efficiently solve the perturbed problem that foam and impact etc. cause measurement, the disturbance rejection ability is strong.
3, system hardware and software combination possesses intelligent self-school checking functions, dynamically obtains sampled point, has improved the mistake ability of studying carefully greatly, and can carry out online detection so that safeguard to self hardware system.
4, adopted high isolation scheme between native system network and computing control system and electric power system, improved the independence of master control system and self Measurement Network greatly, effectively isolated outside spuious power supply and high-pressure electrostatic and then made the security and the stability of whole system obtain favourable guarantee.
5, software intelligent temperature compensation (compensation range: 5～60 degree).
6, grid has effectively been simplified circuit and electric power system thereof by the single supply low-voltage power supply.
Description of drawings:
Fig. 1 is an electrode scheme of installation of the present invention.
Fig. 2 is a theory diagram of the present invention.
Fig. 3 is measurement of the present invention and control circuit synoptic diagram.
Fig. 4 is driving circuit and the high pressure buffer circuit synoptic diagram in the metering solenoid valve control circuit.
Fig. 5 is a power supply synoptic diagram among the present invention.
Embodiment:
As shown in Figure 1, 2: a kind of milk electricity is led dynamic online detection and milkmeter amount system, by normal electrode P2, check and approve electrode P1, acquisition electrode P3, metering solenoid valve, metering circuit, control circuit and center processing unit 8052 family chips and form; Normal electrode, check and approve electrode and acquisition electrode is installed in the jigger; Control circuit is made up of reference waveform generative circuit and metering solenoid valve control circuit, the input port of reference waveform generative circuit is connected with the waveform modulated output terminal of CPU (central processing unit), receive the waveform modulated signal that it sends, the output port of reference waveform generative circuit is connected with normal electrode, makes it generate trapezoidal alternating voltage drive signal; The metering solenoid valve control circuit is made up of driving circuit and high pressure buffer circuit, the solenoid-driven output terminal of CPU (central processing unit) is connected with the input port of high pressure buffer circuit, the output port of high pressure buffer circuit is connected with the input port of driving circuit, and the output port of driving circuit is connected with metering solenoid valve; Metering circuit is connected to form successively by standard base generative circuit, filtering shaping circuit, amplifying circuit, high pressure circuit linearity insulating circuit and A/D change-over circuit; Check and approve the back with standard base generative circuit respectively and fall by filtering shaping circuit, amplifying circuit, high pressure circuit linearity insulating circuit and the input of A/D change-over circuit and carry out outputing in liquid crystal display or the upper PC database after the software processes in the CPU (central processing unit) by checking and approving electric signal in electrode and the acquisition electrode collecting milk.
As shown in Figure 3: above-mentioned reference waveform generative circuit is connected to form successively by phase inverter U5B, photoelectronic coupler U7D, accurate adjustable potentiometer R42 and operational amplifier U8A.Said reference ground generative circuit is connected to form successively by accurate adjustable potentiometer R43, operational amplifier U8B and some electric capacity thereof; Above-mentioned A/D change-over circuit is two TLC0831 chips.
As shown in Figure 4: driving circuit in the above-mentioned metering solenoid valve control circuit and high pressure buffer circuit are connected to form successively by photoelectronic coupler U7A, field effect transistor Q2, sustained diode 3 and filter capacitor C42, C34, C35.
As shown in Figure 5: power supply of the present invention adopts high isolated supplies system, and wherein, U17, U18 are high isolated form DCDC dress die change piece.
Principle of work of the present invention is: add the trapezoidal alternating voltage drive signal of 1kHZ on the normal electrode P2, in order to set up electric field in fresh milk.At this moment tested fresh milk can equivalence be pure resistance under the situation of staticizing relatively; P1, P3 are the differential type detecting electrode, and be accurately coaxial and equidistant with P2 respectively, is used for measuring the electric field that is formed by P2.At this moment there is certain corresponding relation in the conductivity k of the electric current I of electrode loop and tested fresh milk, and finally obtains dynamic k value by certain mistake of studying carefully with intellegent sampling and various calculation process.Strong, the electric conductivity good metal platinum of electrode material employing corrosion resistance.The electrode probe support adopts the engineering plastics polycarbonate that temperature coefficient is little, good chemical stability is arranged.
Claims (7)
1. a milk electricity is led dynamic online detection and milkmeter amount system, it is characterized in that: by power supply, normal electrode, check and approve electrode, acquisition electrode, metering solenoid valve, metering circuit, control circuit and center processing unit and form; Normal electrode, check and approve electrode and acquisition electrode is installed in the jigger; Control circuit is made up of reference waveform generative circuit and metering solenoid valve control circuit, the input port of reference waveform generative circuit is connected with the waveform modulated output terminal of CPU (central processing unit), receive the waveform modulated signal that it sends, the output port of reference waveform generative circuit is connected with normal electrode, makes it generate trapezoidal alternating voltage drive signal; The metering solenoid valve control circuit is made up of driving circuit and high pressure buffer circuit, the solenoid-driven output terminal of CPU (central processing unit) is connected with the input port of high pressure buffer circuit, the output port of high pressure buffer circuit is connected with the input port of driving circuit, and the output port of driving circuit is connected with metering solenoid valve; Metering circuit is connected to form successively by standard base generative circuit, filtering shaping circuit, amplifying circuit, high pressure circuit linearity insulating circuit and A/D change-over circuit; Check and approve the back with standard base generative circuit respectively and fall by filtering shaping circuit, amplifying circuit, high pressure circuit linearity insulating circuit and the input of A/D change-over circuit and carry out outputing in liquid crystal display or the upper PC database after the software processes in the CPU (central processing unit) by checking and approving electric signal in electrode and the acquisition electrode collecting milk.
2. milk electricity according to claim 1 is led dynamic online detection and milkmeter amount system, it is characterized in that: above-mentioned reference waveform generative circuit is connected to form successively by accurate adjustable potentiometer R42 of phase inverter U5B, photoelectronic coupler U7D. and operational amplifier U8A.
3. milk electricity according to claim 1 is led dynamic online detection and milkmeter amount system, it is characterized in that: said reference ground generative circuit is connected to form successively by accurate adjustable potentiometer R43, operational amplifier U8B and some electric capacity thereof;
4. milk electricity according to claim 1 is led dynamic online detection and milkmeter amount system, it is characterized in that: above-mentioned A/D change-over circuit is two TLC0831 chips.
5. milk electricity according to claim 1 is led dynamic online detection and milkmeter amount system, it is characterized in that: driving circuit in the above-mentioned metering solenoid valve control circuit and high pressure buffer circuit are connected to form successively by photoelectronic coupler U7A, field effect transistor Q2, sustained diode 3 and filter capacitor C42, C34, C35.
6. milk electricity according to claim 1 is led dynamic online detection and milkmeter amount system, and it is characterized in that: above-mentioned CPU (central processing unit) adopts 8052 family chips.
7. milk electricity according to claim 1 is led dynamic online detection and milkmeter amount system, it is characterized in that: above-mentioned power supply adopts high isolated supplies system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100569313A CN101266223A (en) | 2007-03-16 | 2007-03-16 | Milk conductance dynamic on-line detection and milk amount metering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100569313A CN101266223A (en) | 2007-03-16 | 2007-03-16 | Milk conductance dynamic on-line detection and milk amount metering system |
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| Publication Number | Publication Date |
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| CN101266223A true CN101266223A (en) | 2008-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2007100569313A Pending CN101266223A (en) | 2007-03-16 | 2007-03-16 | Milk conductance dynamic on-line detection and milk amount metering system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103207628A (en) * | 2013-03-29 | 2013-07-17 | 北京经纬恒润科技有限公司 | Automobile filtering and water discharging control system and automobile water discharging system and method |
| CN105865576A (en) * | 2016-06-21 | 2016-08-17 | 天津和利惠牧科技有限公司 | Measuring cup |
| CN106155153A (en) * | 2015-03-31 | 2016-11-23 | 展讯通信（上海）有限公司 | The system of anti-voltage impulse disturbances |
| CN107478686A (en) * | 2017-09-25 | 2017-12-15 | 中国水利水电科学研究院 | A kind of water power leads aeration measuring instrument |
| CN112858313A (en) * | 2021-01-14 | 2021-05-28 | 内蒙古农业大学 | Sheep milk adulteration detection device |
-
2007
- 2007-03-16 CN CNA2007100569313A patent/CN101266223A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103207628A (en) * | 2013-03-29 | 2013-07-17 | 北京经纬恒润科技有限公司 | Automobile filtering and water discharging control system and automobile water discharging system and method |
| CN103207628B (en) * | 2013-03-29 | 2016-06-01 | 北京经纬恒润科技有限公司 | A kind of automobile-used filtering discharges water Controlling System, drainage system and method |
| CN106155153A (en) * | 2015-03-31 | 2016-11-23 | 展讯通信（上海）有限公司 | The system of anti-voltage impulse disturbances |
| CN106155153B (en) * | 2015-03-31 | 2018-07-10 | 展讯通信（上海）有限公司 | The system of anti-voltage impulse disturbances |
| CN105865576A (en) * | 2016-06-21 | 2016-08-17 | 天津和利惠牧科技有限公司 | Measuring cup |
| CN105865576B (en) * | 2016-06-21 | 2023-10-10 | 天津和利惠牧科技有限公司 | Measuring cup |
| CN107478686A (en) * | 2017-09-25 | 2017-12-15 | 中国水利水电科学研究院 | A kind of water power leads aeration measuring instrument |
| CN112858313A (en) * | 2021-01-14 | 2021-05-28 | 内蒙古农业大学 | Sheep milk adulteration detection device |
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Open date: 20080917 |