CN205749366U - Plain type pH meter - Google Patents
Plain type pH meter Download PDFInfo
- Publication number
- CN205749366U CN205749366U CN201620436849.8U CN201620436849U CN205749366U CN 205749366 U CN205749366 U CN 205749366U CN 201620436849 U CN201620436849 U CN 201620436849U CN 205749366 U CN205749366 U CN 205749366U
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- CN
- China
- Prior art keywords
- instrument shell
- subchassis
- meter
- display screen
- measuring probe
- 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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- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
nullA kind of plain type pH meter，Including measuring probe、Instrument shell and subchassis，It is provided with display screen on described Instrument shell，Instrument shell below display screen is provided with activate switch and reset switch，Microprocessor it is provided with inside Instrument shell、Rechargeable battery and suction pump，Described measuring probe lower end is provided with detection cavity，PH induction apparatus it is provided with in detection cavity，Described suction pump connects detection cavity by external hose，Measuring probe end is provided with temperature sensor，Instrument shell side is provided with subchassis，Subchassis is provided with the annulus boss for carrying solution beaker，Annulus boss inwall is provided with cooling module，Annulus boss bottom center is provided with warm table，Heating module it is provided with inside warm table，Subchassis sidepiece is provided with temperature setting switch，This utility model simple in construction，Compact volume and convenience，Take up room little，Possesses isothermal condition，It is substantially reduced measurement error.
Description
Technical field
This utility model relates to electronic instrument technology field, specifically a kind of plain type pH meter.
Background technology
Hydrogen ionexponent refers to the ratio of the amount of hydrionic sum and total material in solution.Its numerical value is commonly called as
“pH”.Represent solution acidic or the numerical value of degree of alkalinity, the negative value of the common logarithm of i.e. contained hydrogen ion concentration.
There is a lot of method to measure the pH value of solution: use pH indicator；PH indicator is added in solution to be measured,
Different indicators, according to different pH value meeting changes colours, is assured that pH according to the research of indicator
Scope.During titration, accurate pH standard can be made；Use pH reagent paper；PH reagent paper have extensive reagent paper and
Precision test paper, dips in some solution to be measured with Glass rod and, on reagent paper, then changes sighting target according to the color of reagent paper
Quasi-colorimetric card can obtain the pH of solution.PH reagent paper can not demonstrate the pH value of oil content, because pH reagent paper
Measuring the pH value of solution to be measured with hydrion, but do not contain hydrion in oil, therefore pH reagent paper can not show
The pH value of oil content is shown；Use pH meter；PH meter is a kind of instrument measuring solution ph, and it passes through pH
Electrode (such as glass electrode) is selected to determine the pH of solution.PH meter can be as accurate as 2 significant digits.But
Common pH meter is bulky, carries inconvenience；It addition, general pH measurement apparatus does not possess at constant temperature
The lower condition measured of degree, the error easily causing pH measurement is bigger.
Utility model content
The purpose of this utility model is to provide a kind of simple in construction, compact volume and convenience, takes up room little, possesses perseverance
Fixed temperature condition, is substantially reduced the plain type pH meter of measurement error, to solve to carry in above-mentioned background technology
The problem gone out.
For achieving the above object, the following technical scheme of this utility model offer:
A kind of plain type pH meter, including measuring probe, Instrument shell and subchassis, described instrument shell
Being provided with display screen on body, the Instrument shell below display screen is provided with activate switch and reset switch, instrument shell
Internal portion is provided with microprocessor, rechargeable battery and suction pump, and described measuring probe lower end is provided with detection cavity, detection
Intracavity is provided with pH induction apparatus, and described suction pump connects detection cavity by external hose, and measuring probe end is provided with
Temperature sensor, Instrument shell side is provided with subchassis, and subchassis is provided with for carrying solution beaker
Annulus boss, annulus boss inwall is provided with cooling module, and annulus boss bottom center is provided with warm table, warm table
Inside is provided with heating module, and subchassis sidepiece is provided with temperature setting switch, described heating module, display screen,
Activate switch, reset switch, temperature setting switch, pH induction apparatus and temperature sensor are all with microprocessor even
Connect.
As further program of the utility model, described heating module is PTC-ceramic heating plate or heating resistor
Silk.
As further program of the utility model, described cooling module is that entrance and exit is respectively connected with cooling and follows
The flexible pipe of ring water pipe.
As further program of the utility model, the Instrument shell below described display screen is provided with buzzer,
Buzzer is connected with microprocessor.
As further program of the utility model, described Instrument shell sidewall is provided with and is connected with rechargeable battery
Charging socket.
Compared with prior art, the beneficial effects of the utility model are: set constant temperature by temperature setting switch
Degree, is placed on annulus boss by solution beaker to be measured, is risen solution to be measured by heating module or cooling module
Temperature or cooling, measuring probe stretches in solution to be measured, and temperature sensor measurement solution temperature to be measured, when solution
After temperature reaches design temperature, microprocessor control and suck pump work, suction pump passes through external hose by be measured molten
Liquid is pumped in the detection cavity above measuring probe, the pH induction apparatus in detection cavity by incoming for signal microprocessor,
PH value is shown by microprocessor on a display screen, is arranged such, it is ensured that solution to be measured and standard solution are surveyed
It is in during amount under same steady temperature, is substantially reduced the measurement error of pH value, it is ensured that the accuracy of experimental result；
Annulus boss wraps solution beaker, reduces solution temperature change, it is simple to measure；PH is reported by buzzer
Value reading, in conjunction with display screen, uses convenient；Device entirety takes up room little, is convenient for carrying, and pH surveys
Accurately and reliably, degree of accuracy is high for numerical quantity.This utility model simple in construction, compact volume and convenience, take up room little, tool
Standby isothermal condition, is substantially reduced measurement error.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of plain type pH meter.
In figure: 1-Instrument shell, 2-microprocessor, 3-reset switch, 4-activate switch, 5-buzzer, 6-
Display screen, 7-suction pump, 8-external hose, 9-detection cavity, 10-measuring probe, 11-subchassis, 12-
Warm table, 13-heating module, 14-cooling circulating water pipe, 15-annulus boss, 16-cooling module, 22-fills
Electricity battery.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, to the technical scheme in this utility model embodiment
It is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model,
Rather than whole embodiments.Based on the embodiment in this utility model, those of ordinary skill in the art are not having
Make the every other embodiment obtained under creative work premise, broadly fall into the scope of this utility model protection.
Referring to Fig. 1, in this utility model embodiment, a kind of plain type pH meter, including measuring probe
10, Instrument shell 1 and subchassis 11, described Instrument shell 1 is provided with display screen 6, display screen 6
The Instrument shell 1 of lower section is provided with activate switch 4 and reset switch 3, and Instrument shell 1 is internal is provided with micro-process
Device 2, rechargeable battery 22 and suction pump 7, described measuring probe 10 lower end is provided with detection cavity 9, detection cavity 9
Inside being provided with pH induction apparatus, described suction pump 7 connects detection cavity 9, measuring probe end by external hose 8
Being provided with temperature sensor (not shown), Instrument shell 1 side is provided with subchassis 11, subchassis
11 are provided with the annulus boss 15 for carrying solution beaker, and annulus boss 15 inwall is provided with cooling module 16,
Annulus boss 15 bottom centre is provided with warm table 12, and warm table 12 is internal is provided with heating module 13, assists the end
Dish 11 sidepiece is provided with temperature setting switch (not shown), described heating module 13, display screen 6, opens
Dynamic switch 4, reset switch 3, temperature setting switch, pH induction apparatus and temperature sensor all with microprocessor 2
Connect.
In this utility model embodiment, described heating module 13 is PTC-ceramic heating plate or heating resistance wire.
In this utility model embodiment, described cooling module 16 is respectively connected with cooling circulating water for entrance and exit
The flexible pipe of pipe 14.
In this utility model embodiment, the Instrument shell 1 below described display screen 6 is provided with buzzer 5, honeybee
Ring device 5 is connected with microprocessor 2.
In this utility model embodiment, described Instrument shell 1 sidewall is provided with and filling that rechargeable battery 22 is connected
Electrical outlet (not shown), is charged to rechargeable battery in time by charging socket, it is ensured that the continuation of measurement apparatus
Use.
Operation principle of the present utility model is: sets steady temperature by temperature setting switch, is burnt by solution to be measured
Cup is placed on annulus boss 15, is heated up solution to be measured by heating module 13 or cooling module 16 or drops
Temperature, measuring probe 10 stretches in solution to be measured, and temperature sensor measurement solution temperature to be measured, when the temperature of solution
After degree reaches design temperature, microprocessor 2 control and suck pump 7 works, and suction pump 7 is by external hose 8
Being pumped in the detection cavity 9 above measuring probe 10 by solution to be measured, the pH induction apparatus in detection cavity 9 will letter
Number incoming microprocessor 2, pH value is shown on display screen 6, is arranged such, really by microprocessor 2
Protect solution to be measured and standard solution be under same steady temperature when measuring, be substantially reduced the measurement error of pH value,
Ensure the accuracy of experimental result；Annulus boss 15 wraps solution beaker, reduces solution temperature change, just
In measurement；Report pH value reading by buzzer 5, in conjunction with display screen 6, use convenient；Device is whole
Body takes up room little, is convenient for carrying, and pH measures numerical value accurately and reliably, and degree of accuracy is high.
Claims (5)
1. a plain type pH meter, including measuring probe, Instrument shell and subchassis, it is characterised in that described
Being provided with display screen on Instrument shell, the Instrument shell below display screen is provided with activate switch and reset switch, Instrument shell
Inside is provided with microprocessor, rechargeable battery and suction pump, and described measuring probe lower end is provided with detection cavity, is provided with pH in detection cavity
Induction apparatus, described suction pump connects detection cavity by external hose, and measuring probe end is provided with temperature sensor, Instrument shell
Side is provided with subchassis, and subchassis is provided with the annulus boss for carrying solution beaker, and annulus boss inwall is provided with fall
Temperature module, annulus boss bottom center is provided with warm table, is provided with heating module inside warm table, and subchassis sidepiece is provided with temperature
Degree configuration switch, described heating module, display screen, activate switch, reset switch, temperature setting switch, pH induction apparatus and
Temperature sensor is all connected with microprocessor.
A kind of plain type pH meter the most according to claim 1, it is characterised in that described heating module is PTC
Ceramic heating flake or heating resistance wire.
A kind of plain type pH meter the most according to claim 1, it is characterised in that described cooling module is entrance
With the flexible pipe that outlet is respectively connected with cooling circulating water pipe.
A kind of plain type pH meter the most according to claim 1, it is characterised in that the instrument below described display screen
Device housing is provided with buzzer, and buzzer is connected with microprocessor.
A kind of plain type pH meter the most according to claim 1, it is characterised in that on described Instrument shell sidewall
It is provided with the charging socket being connected with rechargeable battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620436849.8U CN205749366U (en) | 2016-05-12 | 2016-05-12 | Plain type pH meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620436849.8U CN205749366U (en) | 2016-05-12 | 2016-05-12 | Plain type pH meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205749366U true CN205749366U (en) | 2016-11-30 |
Family
ID=57366581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620436849.8U Expired - Fee Related CN205749366U (en) | 2016-05-12 | 2016-05-12 | Plain type pH meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205749366U (en) |
-
2016
- 2016-05-12 CN CN201620436849.8U patent/CN205749366U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161130 Termination date: 20170512 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |