CN201535763U - Solid water content measuring pen - Google Patents
Solid water content measuring pen Download PDFInfo
- Publication number
- CN201535763U CN201535763U CN2009202498251U CN200920249825U CN201535763U CN 201535763 U CN201535763 U CN 201535763U CN 2009202498251 U CN2009202498251 U CN 2009202498251U CN 200920249825 U CN200920249825 U CN 200920249825U CN 201535763 U CN201535763 U CN 201535763U
- Authority
- CN
- China
- Prior art keywords
- circuit
- measuring
- measuring pen
- water content
- analog
- 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
Links
Images
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
Abstract
A solid water content measuring pen comprises a pen body, measuring needles, a measuring circuit, an analogue to digital converting circuit and a digital display. The measuring needles are two sharp objects which are parallel to each other, and base ends of the measuring needles are fixed on the pen body and connected with the measuring circuit. The solid water content measuring pen can be used for measuring water content in various solids such as Chinese herbal medicines, building materials, crops, food and the like.
Description
Technical field
The utility model relates to a kind of device for measuring moisture, and solid moistures such as especially a kind of Chinese herbal medicine, building materials, grain, food numeral shows measures ratio.
Background technology
Existing solid moisture content measurement device power supply complexity, precision are low.Utility model patent CN200986554, it consumes energy high, and volume is big, the heavy cost height of quality carries inconvenience.
Summary of the invention
In order to address the above problem, the purpose of this utility model is to provide a kind of solid moisture content measurement pen, measure the moisture in the solids such as Chinese herbal medicine, building materials (non-firmly insert class), grain, food, during measurement, moisture shows intuitively with digital form.
The utility model can be measured the moisture of Chinese herbal medicine, meat and measure use, also can measure purity such as some liquid such as pure water and measure use.
The purpose of this utility model is achieved in that
A kind of solid moisture content measurement pen comprises handwriting, surveyingpin, metering circuit, analog to digital conversion circuit, digital indicator, and surveyingpin is two mutual parallel sharp shaped materials, and cardinal extremity is fixed on the handwriting, and links to each other with metering circuit.
Described metering circuit is common printed circuit or silver slurry P.e.c..
Described metering circuit is a bridge balancing circuit.
Analog-digital conversion circuit as described is an A/D converter.
Described digital indicator is LCD or light-emitting diode display.
Described metering circuit and analog to digital conversion circuit are integrated on the chip.
The utility model is the pen type shape, be easy to carry, and practical and convenient, simple in structure, element is few, precision is high, power consumption less, with low cost, volume is little, light weight, cost are little.In measuring various solid moisture content measurements such as Chinese herbal medicine, building materials (can insert), grain, food, use operation more convenient, more humane, more accurate.
Description of drawings
Fig. 1, the outside synoptic diagram of the utility model measuring pen;
Fig. 2, the utility model circuit theory diagrams.
Among the figure
U1-analog to digital converter (ICL7106)
U2-digital indicator (YN04KX33)
Embodiment
The utility model comprises handwriting, surveyingpin, metering circuit, modulus circuit, digital indicator, sees Fig. 1, and wherein surveyingpin is two mutual parallel sharp shaped materials, and cardinal extremity is fixed on the handwriting.Distance between the surveyingpin can be regulated according to different testees, also can be fixed as a certain numerical value between the 0.1cm-1cm.Metering circuit 1 usefulness Rp1, Rp2, Rp3, Rp4 form bridge balancing circuit, see Fig. 2.U1 is analog to digital converter (ICL7106).U2 is digital lcd (YN04KX33).Supply voltage is 9 (7-15) volts.Two surveyingpins are connected the variable-resistance two ends of the bridge balancing circuit of metering circuit.
When it is shape to be measured, adjust the automatic zero set (AZS) capacitor C 4 on analog to digital converter (ICL7106) pin 29, digital indicator U2 (YN04KX33) video data is zero.
When surveyingpin insert when surveying object, because different object contained humidity difference, the resistance that presents is also different, if the resistance in the object is Rx, i.e. resistance R x between two surveyingpins, through Rp1, Rp2, Rp3, Rp4 forms bridge balancing circuit and is reflected to Q1, the Q2 two ends, through R4, C3 is with Q1, change in voltage between the Q2 is transferred to analog quantity input end 30/31 pin of analog to digital converter U1 (ICL7106), seven sections digital stroke codings of 2～25 pin output of analog to digital converter U1 (ICL7106), thereby drive digital indicator U2 (LCD), show the material resistance R x size of surveying, the i.e. numerical value of the water cut of object.Resistance R x and water cut are corresponding relation.
The utility model course of work is as follows:
Switch among Fig. 1 is pulled out to opening (ON) position, and measuring pen enters duty.Two surveyingpins are inserted testee, and LCD U2 then shows the water cut of testee.
The utility model is the pen type shape, be easy to carry, and practical and convenient, simple in structure, element is few, precision is high, power consumption less, with low cost, volume is little, light weight, cost are little.
Claims (6)
1. a solid moisture content measurement pen comprises handwriting, surveyingpin, metering circuit, analog to digital conversion circuit, digital indicator, it is characterized in that, surveyingpin is two mutual parallel sharp shaped materials, and cardinal extremity is fixed on the handwriting, and links to each other with metering circuit.
2. measuring pen according to claim 1 is characterized in that, described metering circuit is common printed circuit or silver slurry P.e.c..
3. measuring pen according to claim 1 is characterized in that described metering circuit is a bridge balancing circuit.
4. measuring pen according to claim 1 is characterized in that analog-digital conversion circuit as described is an A/D converter.
5. measuring pen according to claim 1 is characterized in that described digital indicator is LCD or light-emitting diode display.
6. measuring pen according to claim 1 is characterized in that described metering circuit and analog to digital conversion circuit are integrated on the chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202498251U CN201535763U (en) | 2010-04-15 | 2010-04-15 | Solid water content measuring pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202498251U CN201535763U (en) | 2010-04-15 | 2010-04-15 | Solid water content measuring pen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201535763U true CN201535763U (en) | 2010-07-28 |
Family
ID=42535542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202498251U Expired - Fee Related CN201535763U (en) | 2010-04-15 | 2010-04-15 | Solid water content measuring pen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201535763U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105758893A (en) * | 2016-04-12 | 2016-07-13 | 南京农业大学 | Pig carcass surface humidity detection device |
| CN114167010A (en) * | 2021-09-30 | 2022-03-11 | 河北北方学院 | Potato starch content tester and potato quality management evaluation method |
-
2010
- 2010-04-15 CN CN2009202498251U patent/CN201535763U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105758893A (en) * | 2016-04-12 | 2016-07-13 | 南京农业大学 | Pig carcass surface humidity detection device |
| CN114167010A (en) * | 2021-09-30 | 2022-03-11 | 河北北方学院 | Potato starch content tester and potato quality management evaluation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2006069286A3 (en) | Light powered pressure gauge | |
| CN103389149A (en) | Electronic scale provided with suckers | |
| CN201535763U (en) | Solid water content measuring pen | |
| CN203100841U (en) | Electronic weighing apparatus | |
| CN103245328B (en) | A kind of general digital formula attitude automatic measurement circuit | |
| CN201187985Y (en) | Universal angle gauge | |
| CN207515681U (en) | A kind of combined type digital display calliper | |
| CN100451636C (en) | Humidity transmitter in low cost | |
| CN205581041U (en) | Simple and easy hygrometer | |
| CN206321705U (en) | A kind of Multi-functional Digital Frequency Gauge based on STM32 | |
| CN201757765U (en) | Micro galvanometer for photocurrent detection | |
| CN107340045A (en) | A kind of Intelligent weight measurement apparatus | |
| CN102058401A (en) | Screwed-in capillary pressure measuring device | |
| CN206974533U (en) | A kind of Intelligent weight measurement apparatus | |
| CN201795876U (en) | Digital thermometer | |
| CN202255676U (en) | Sea water temperature detection circuit | |
| CN201497471U (en) | Depth measurer for grain bulks | |
| CN201159671Y (en) | Simple metering device | |
| CN201094101Y (en) | Digital electronic thermometer | |
| CN203825218U (en) | Novel rainfall measuring device | |
| CN202512167U (en) | Digital voltage meter | |
| CN211042314U (en) | L oRa-based wireless handheld universal signal input detector | |
| CN202057389U (en) | Digital meter | |
| CN202630826U (en) | Image measuring ruler | |
| CN203350336U (en) | Multi-function voltage frequency table |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100728 Termination date: 20170415 |