CN2173958Y - Milk tester - Google Patents
Milk tester Download PDFInfo
- Publication number
- CN2173958Y CN2173958Y CN 93241073 CN93241073U CN2173958Y CN 2173958 Y CN2173958 Y CN 2173958Y CN 93241073 CN93241073 CN 93241073 CN 93241073 U CN93241073 U CN 93241073U CN 2173958 Y CN2173958 Y CN 2173958Y
- Authority
- CN
- China
- Prior art keywords
- milk
- wiring board
- electrode
- tester
- resistance
- 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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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The utility model relates to a milk tester, which can diagnose the recessive mastitis of milk cows in a milk cow farm. The milk tester is composed of a casing and a circuit board which is arranged in the casing. A liquid containing disk is arranged on the upper cover of the casing, and an electrode and a temperature sensitive resistance are arranged in the liquid containing disk. The electrode and the temperature sensitive resistance are connected with the input end of the operational amplification circuit which is arranged on the circuit board by conducting wires, and the power supply input end which is on the circuit board is connected with a battery box by power cords. The utility model has temperature compensation function, high precision, stable and reliable operation, visual display, no artificial errors, easy use and quick diagnosis. The milk tester is suitable for the tentative diagnoses and the periodic checks of the recessive mastitis occurrence situations of milk cows.
Description
The utility model belongs to the milk detecting instrument, particularly a kind of milk detecting instrument of cow subclinical mastitis being diagnosed in the cattle farm.
Cow subclinical mastitis is the key factor that influences milk crop and quality.The domestic reagent method diagnosis of milk cow recessive mastitis that generally adopts is about to reagent and mixes, shakes up in the 1:1 ratio with milk at present.Then by observing the potpourri change in color and whether muddiness is judged.This method is not only operated inconvenience, and easily produces personal error, causes mistaken diagnosis, and is also higher to testing staff's empirical requirement.A kind of in addition in addition " milk examination diagnostic instrument " adopts the pilot lamp method, and the appearance that milk that will be an amount of during use the injects examination diagnostic instrument device of suckling turns on the power switch, and judges so that pilot lamp is whether bright whether milk cow is ill.Use also etiologic diagnosis roughly of this instrument, can't judge ill degree.
The purpose of this utility model is to provide a kind of hand-held tester device that adopts numeral to show, can be convenient, accurate, qualitative, whether diagnosis of milk cow suffers from recessive mastitis and ill degree quantitatively, thus make more science of diagnostic method.
The utility model comprises shell 1 and wiring board 2, is characterized in being provided with drip pan 5 on outer casing upper cover 3, and electrode 6 and warm electrification resistance 7 is housed in the drip pan 5, and electrode 6 and the resistance 7 of warm electrification link to each other by the input end of operational amplification circuit 19 on lead 8 and the wiring board 2.On outer casing upper cover 3, also have display screen mouth 9 and microswitch mouth 10, and by 11 sealings of waterproofing membrane panel.Be provided with battery case 14 in shell lower cover 4 inboards, power lead 15 links to each other with power input 16 on the wiring board 2.Microswitch 12 and LCDs 13 are housed on the wiring board 2.Loam cake 3 and lower cover 4 be by screw attachment, and by sealing gasket 21 sealings, wiring board 2 by screw retention on loam cake 3.
The utility model mainly contains following advantage:
1, volume is little, and is in light weight, and use is easy to carry.
2, milk to be measured be need not to survey preceding the preparation and specimen preparation.
3, have temperature compensation function, the precision height, working stability is reliable.
4, adopt numeral to show, intuitive display, unmanned is error, but the diagnosis of qualitative, quantitative ground.
5, easy to use, diagnosis is fast, is applicable to tentative diagnosis and makes regular check on.
6, cost is low, is beneficial to popularization.
The utility model is described in further detail below in conjunction with accompanying drawing:
Accompanying drawing 1 is a structural representation of the present utility model
Accompanying drawing 2 is the theory diagram of wiring board of the present utility model
Accompanying drawing 3 is a conspectus of the present utility model
1 shell, 2 wiring boards, 3 loam cakes, 4 lower covers, 5 drip pans, 6 electrodes, 7 temperature sensitive resisters, 8 leads, 9 display screen mouths, 10 microswitch mouths, 11 waterproofing membrane panels, 12 microswitches, 13 LCDs, 14 battery cases, 15 power leads, 16 power inputs, 17 power circuits, 18 operational amplification circuit input ends, 19 operational amplification circuits, 20 display driver circuits, 21 sealing gaskets
The utility model comprises shell 1 and wiring board 2, and shell 1 comprises loam cake 3, sealing gasket 21 and lower cover 4, and sealing gasket 21 seals between the surface of contact of loam cake 3 and lower cover 4.Outer casing upper cover 3 is provided with the drip pan 5 of a sampling usefulness, and electrode 6 and warm electrification resistance 7 is housed in the drip pan 5, and electrode 6 and the resistance 7 of warm electrification link to each other by the input end of operational amplification circuit 19 on lead 8 and the wiring board 2.Electrode 6 is input ends of complete machine, and the electric signal that 7 pairs of electrodes of warm electrification resistance record carries out temperature compensation.Also have display screen mouth 9 and microswitch mouth 10 on the loam cake 3, in use can operate easily and measurement result is looked in sight, for fear of in use damaging internal wiring through moisture, by 11 sealings of waterproofing membrane panel.Be provided with battery case 14 in shell lower cover 4 inboards, in adorn two joint No.5 cells as the power supply of complete machine, and link to each other with power input 16 on the wiring board 2 by power lead 15.Microswitch 12 and LCDs 13, power circuit 17, operational amplification circuit 19 are housed on the wiring board 2, and display driver circuit line 20.Loam cake 3 and lower cover 4 be by screw attachment, and by sealing gasket 21 sealings, wiring board 2 also by screw retention on loam cake 3.After temperature sensitive resister 7 carries out temperature compensation, send into operational amplification circuit 19 by electrode 6 measured electric signal (resistance value) and carry out the computing amplification, drive LCDs 13 by display driver circuit 20 again and show.
Ic
1TL496 and IC
2TL062 and peripheral cell thereof constitute power circuit 17, are the precision switch stabilized voltage supply for operational amplification circuit 19 and display driver circuit 20 etc. provides stable operating voltage, TL496, are connected into booster circuit at this, and K is a power switch, T
1And T
2Be electrode 6, TM
1Be temperature sensitive resister 7, it is to by T
1And T
2The electric signal (resistance value) of input carries out sending into by double operational IC after the temperature compensation
3TL082 and single amplifier IC
4The operational amplification circuit 19 that TL080 forms carries out computing and amplifies VR
2Be balancing resistance.Electric signal after computing is amplified passes through R by TL080
11, R
12More accurate resistance VR
1Deliver to display driver circuit 20, display driver circuit is by IC
5CD4030 and IC
6ICL7136 forms, ZD
1For the accurate low pressure reference power supply of 1.2V, make IC
7Can stably work.The power switch of the utility model product adopts automatically reset microswitch 12, can save electric energy effectively.
Should carry out standard to instrument earlier before using, the NaCl solution that is about to 0.05M injects drip pan, presses microswitch 12, adjusts VR simultaneously
1, make display screen be shown as 5.6, promptly standard finishes.During use, an amount of milk is injected drip pan 5, this moment, instrument was in state to be checked.Press microswitch 12, the voltage of battery promptly is added to power circuit 17, and is boosted, offered operational amplification circuit 19, display driver road 20 and LCDs 13 after the voltage stabilizing by power circuit 17.Because there is resistance in the electrolyte in the milk between two electrodes, so this electric signal is promptly delivered to by double operational IC after temperature compensation is carried out in warm electrification resistance 7
3TL082 and single amplifier IC
4The input end of the operational amplification circuit 19 that TL080 forms, and carry out computing by operational amplification circuit 19 and amplify, the electric signal after computing is amplified passes through resistance R by TL080
11,
12More accurate resistance VR
1Deliver to the driver module ICL7136 of display driver circuit line 20, it at first is transformed into this analog electrical signal and outputs to LCDs 13 after digital signal is encoded, latchs, amplified and demonstrate numeral, according to this result who records, can diagnose, concrete grammar is as follows: if measured value overgauge value (5.6), then be diagnosed as illly, difference is big more, and is ill heavy more.If measured value less than standard value (5.6), then is diagnosed as normal.
Claims (1)
- A kind of milk detecting instrument, comprise shell and wiring board, it is characterized in that on outer casing upper cover, being provided with drip pan, the resistance of electrode and warm electrification is housed in the drip pan, electrode and the resistance of warm electrification link to each other by the input end of operational amplification circuit on lead and the wiring board, on outer casing upper cover, also have display screen mouth and microswitch mouth, and by the waterproofing membrane panel sealing, inboard at the shell lower cover is provided with battery case, link to each other with power input on the wiring board by power lead, microswitch and LCDs are housed on the wiring board, loam cake and lower cover are by screw attachment, and by the sealing gasket sealing, wiring board is covered last by screw retention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93241073 CN2173958Y (en) | 1993-10-08 | 1993-10-08 | Milk tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93241073 CN2173958Y (en) | 1993-10-08 | 1993-10-08 | Milk tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2173958Y true CN2173958Y (en) | 1994-08-10 |
Family
ID=33815144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93241073 Expired - Fee Related CN2173958Y (en) | 1993-10-08 | 1993-10-08 | Milk tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2173958Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU175605U1 (en) * | 2016-10-24 | 2017-12-12 | Федеральное Государственное Бюджетное Образовательное Учреждение Высшего Образования "Великолукская государственная сельскохозяйственная академия" | MOBILE PHONE WITH FUNCTIONS FOR DETECTING MILK TEMPERATURE AND ANIMAL STATE |
| CN112858313A (en) * | 2021-01-14 | 2021-05-28 | 内蒙古农业大学 | Sheep milk adulteration detection device |
-
1993
- 1993-10-08 CN CN 93241073 patent/CN2173958Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU175605U1 (en) * | 2016-10-24 | 2017-12-12 | Федеральное Государственное Бюджетное Образовательное Учреждение Высшего Образования "Великолукская государственная сельскохозяйственная академия" | MOBILE PHONE WITH FUNCTIONS FOR DETECTING MILK TEMPERATURE AND ANIMAL STATE |
| CN112858313A (en) * | 2021-01-14 | 2021-05-28 | 内蒙古农业大学 | Sheep milk adulteration detection device |
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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 |