CN2347166Y - Calabash strip water content measurer - Google Patents
Calabash strip water content measurer Download PDFInfo
- Publication number
- CN2347166Y CN2347166Y CN 98239321 CN98239321U CN2347166Y CN 2347166 Y CN2347166 Y CN 2347166Y CN 98239321 CN98239321 CN 98239321 CN 98239321 U CN98239321 U CN 98239321U CN 2347166 Y CN2347166 Y CN 2347166Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- transistor
- sensor
- control circuit
- water content
- 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 calabash strip water content measurer, which belongs to a water content measuring instrument. The utility model is composed of a sensor and a control circuit, wherein, the sensor is in a cylinder shape, two copper blocks acting as electrodes are arranged under the sensor, the output of the sensor is connected with the control circuit, and the control circuit is composed of a power circuit, a measuring circuit, and a display circuit. The output of the electrode is connected with the measuring circuit, the display output of the display circuit can be realized finally, and measured water content conditions can be directly marked out. The utility model adopts full electronic circuits, and the water content measurement can be directly displayed. The utility model has the advantages exact measurement, visualization, practicality, high speed, portability, and convenient operation.
Description
The utility model belongs to a kind of moisture measurement device.
The agricultural byproducts cucurbit all is to adopt to be processed into the cucurbit bar and to dry edible usually, the market sales volume is very big, and transportation and preservation are all difficult, must be through doing quick-fried processing, the general method for airing that adopts, make it reduce water cut, the moisture determination of relevant cucurbit bar all adopts feel test, the useful moisture content instrumentation of part amount at present, moisture content is counted a kind of old-fashioned pointer structure, measuring accuracy is low, and error is big, uses very inconvenient.
For solving cucurbit bar moisture content test problem, the purpose of this utility model provides a kind of cucurbit bar aquametry apparatus, adopts all electronic circuit and sensor, realizes the measurement to cucurbit bar moisture content.
The structural design of the utility model is achieved in that its structure of this measuring instrument is made up of sensor and control circuit two parts, wherein sensor adopts the electric-resistivity method principle to make, it is one cylindrical that the structure of sensor is that it is shaped as, be two semicircle brass ingots below, outside copper facing, be separately fixed at bolt on the base of sensor, two brass ingots are two rapiers, insulated from each other, be connected on the control circuit with cable pigtail separately, sensor base is that vinyon is made (as shown in Figure 1, 2); Control circuit is made up of power supply, metering circuit and display circuit three parts, wherein power circuit is the inverting circuit, connect the 6V direct supply below, become interchange through inverter, through behind the diode biphase rectification, becoming direct current after the transformer conversion again again, supply with test circuit and display circuit, circuit structure is that the negative terminal of 6V direct supply connects inverter transistor (T
2) emitter (as shown in Figure 2), (T
2) collector and transistor (T
3) base stage one of the back tietransformer primary winding end that joins, transistor (T
2Base stage is through resistance and transistor (T
3) collector is connected to the other end of transformer primary winding after joining simultaneously, the transistor grounded emitter, power supply 6V anode is connected to transistor (T
1) emitter, join through resistance and collector, be connected to the middle exit of transformer primary winding simultaneously, transistor (T
1) base stage is connected to transistor (T
4) collector, (T
4) base stage and divider resistance join emitter resistance grounded, (T
4) be supply voltage adjustment pipe, pair winding output terminal of transformer is respectively through diode D
1～D
4Biphase rectification, behind capacitor filtering, be connected to test circuit and display circuit respectively, wherein test circuit is the electrode output of sensor, directly is connected to the input end of control circuit through cable, directly inputs to the field effect transistor triode (M of high impedance through triode PN joint
1), output is connected to comparer (U
1) input end, transistor (T
5) (T
6) (T
7) be field effect transistor (M
1) linear compensation circuit, comparator output terminal is x, y, wherein the y output terminal is through transistor (T
11) to amplify the back be display circuit one input end, x exports through transistor (T
8) (T
9) (T
10) to amplify the back be another input end of display circuit to three utmost points, circuit is exported (out) through W
1Directly drive the charactron tube display circuit.
The advantage of the utility model: adopt all electronic circuit, directly show and measure moisture content, it is accurate, directly perceived to measure, and tube is single practical, and reaction velocity is fast, and small portable is easy to carry, and is easy to use.
The detailed structure of the utility model is provided by following examples and accompanying drawing.
Fig. 1 is a cucurbit bar aquametry apparatus electrode structural chart:
Fig. 2 is a cucurbit bar aquametry apparatus control circuit electrical schematic diagram.
The structure of sensor as shown in Figure 1,1,2 is electrode, is placed on sensor bottom, and direct and testee joins, the resistance size of two electrode centres is an input parameter, 3 is electrodes base, with bolt electrode is fixed on the base, and 4 is whole probe handle, following static probe sensor, be connected to the control circuit input end through cable output, the used device of control circuit as shown in Figure 2, comparer (U wherein
1) be CD4852, field effect transistor (M
1) be 3DG7, transistor (T
1) be 8912, transistor (T
2) (T
3) be 9013, triode (T
4) (T
5) (T
6) (T
7) be 9014, transistor (T
8) (T
9) (T
10) (T
11) be 9015.During test sensor is placed on above the cucurbit bar after the processing, directly exports on display, indicate the moisture situation of cucurbit bar by circuit.
Claims (2)
1. cucurbit bar aquametry apparatus, it is characterized in that this measuring instrument structure is made up of sensor and control circuit two parts, wherein sensor adopts the electric-resistivity method principle to make, and it is one cylindrical that the structure of sensor is that it is shaped as, and is two semicircle brass ingots below, outside copper facing, be separately fixed at bolt on the base of sensor, two brass ingots are two rapiers, and are insulated from each other, be connected on the control circuit with cable pigtail separately, sensor base is that vinyon is made.
2. by the described measuring instrument of claim 1, it is characterized in that control circuit is made up of power supply, metering circuit and display circuit three parts, wherein power circuit is the inverting circuit, connect the 6V direct supply below, become interchange through inverter, through behind the diode biphase rectification, becoming direct current after the transformer conversion again again, supply with test circuit and display circuit, circuit structure is that the negative terminal of 6V direct supply connects inverter transistor (T
2) emitter, (T
2) collector and transistor (T
3) base stage one of the back tietransformer primary winding end that joins, transistor (T
2Base stage is through resistance and transistor (T
3) collector is connected to the other end of transformer primary winding after joining simultaneously, the transistor grounded emitter, power supply 6V anode is connected to transistor (T
1) emitter, join through resistance and collector, be connected to simultaneously the transformer primary winding in same exit, transistor (T
1) base stage is connected to transistor (T
4) collector, (T
4) base stage and divider resistance join emitter resistance grounded, (T
4) be supply voltage adjustment pipe, pair winding output terminal of transformer is respectively through diode D
1～D
4Biphase rectification, behind capacitor filtering, be connected to test circuit and display circuit respectively, wherein test circuit is the electrode output of sensor, directly is connected to the input end of control circuit through cable, directly inputs to the field effect transistor triode (M of high impedance through triode PN joint
1), output is connected to comparer (U
1) input end, transistor (T
5) (T
6) (T
7) be field effect transistor (M
1) linear compensation circuit, comparator output terminal is x, y, wherein the y output terminal is through transistor (T
11) to amplify the back be display circuit one input end, x exports through transistor (T
8) (T
9) (T
10) to amplify the back be another input end of display circuit to three utmost points, circuit is exported (out) through W
1Directly drive the charactron tube display circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98239321 CN2347166Y (en) | 1998-11-11 | 1998-11-11 | Calabash strip water content measurer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98239321 CN2347166Y (en) | 1998-11-11 | 1998-11-11 | Calabash strip water content measurer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2347166Y true CN2347166Y (en) | 1999-11-03 |
Family
ID=33986713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98239321 Expired - Fee Related CN2347166Y (en) | 1998-11-11 | 1998-11-11 | Calabash strip water content measurer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2347166Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103995024A (en) * | 2014-04-30 | 2014-08-20 | 武汉凯特复兴科技有限责任公司 | Measure method applied to circuit of resistor-type moisture measure sensor |
| CN104483231A (en) * | 2014-12-24 | 2015-04-01 | 黑龙江省木材科学研究所 | Wood moisture content detecting and verifying device |
-
1998
- 1998-11-11 CN CN 98239321 patent/CN2347166Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103995024A (en) * | 2014-04-30 | 2014-08-20 | 武汉凯特复兴科技有限责任公司 | Measure method applied to circuit of resistor-type moisture measure sensor |
| CN104483231A (en) * | 2014-12-24 | 2015-04-01 | 黑龙江省木材科学研究所 | Wood moisture content detecting and verifying device |
| CN104483231B (en) * | 2014-12-24 | 2017-08-11 | 黑龙江省木材科学研究所 | A kind of moisture content detection check 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 |