CN203561601U - Easy electronic moisture content tester - Google Patents
Easy electronic moisture content tester Download PDFInfo
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- CN203561601U CN203561601U CN201320554239.4U CN201320554239U CN203561601U CN 203561601 U CN203561601 U CN 203561601U CN 201320554239 U CN201320554239 U CN 201320554239U CN 203561601 U CN203561601 U CN 203561601U
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- resistance
- triode
- electric capacity
- rectifier
- transformer
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- 239000003990 capacitor Substances 0.000 abstract description 19
- 238000005259 measurement Methods 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 3
- 238000004457 water analysis Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000003534 oscillatory effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000012113 quantitative test Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000012085 test solution Substances 0.000 description 1
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Abstract
The utility model discloses an easy electronic moisture content tester, which comprises first to seventh resistors, first to fifth capacitors, a first triode, a second triode, a third triode, a potentiometer, a transformer, a rectifier and a micro-ammeter. A signal is transmitted to a measurement electrode from the second level of the transformer, transmitted to an emitter follower consisting of the second triode after passing through a tested substance, and then is amplified by the third triode, and the amplified signal is coupled by the fourth capacitor, rectified by the rectifier, filtered by the fifth capacitor, and finally indicated by the microammeter. The easy electronic moisture content tester is applied to measurement of moisture-containing substances, has the advantages of simple circuit structure, few electronic elements and low cost, can ensure accurate measurement, and is beneficial to popularization and promotion.
Description
Technical field
The utility model relates to a kind of moisture measurement instrument, relates in particular to a kind of easy electronics moisture content measuring device.
Background technology
Along with the quantitative test of the development of scientific research and the progressive moisture of production technology has been listed in one of elementary item of all kinds of material physico-chemical analysis, as one of all kinds of materials important quality index.The different requirements of moisture have been proposed to measure according to the different in moisture content in multi-form sample.Determination of moisture can be industrial control analysis, also the quality of industrial and agricultural products signing; Can from the product that becomes ton to count, measure moisture and also can in laboratory, only with number microlitre test solution, carry out water analysis; Can be the constant water analysis that water cut reaches a few percent to tens, also water cut be only 1,000,000/following trace water analysis etc.And the circuit structure complexity of moisture tester of the prior art, adopt electronic component many, cost is high, be difficult to promote and popularize.
Utility model content
The purpose of this utility model is just to provide in order to address the above problem a kind of easy electronics moisture content measuring device.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The utility model comprises the first resistance to the seven resistance, the first electric capacity to the five electric capacity, the first triode, the second triode, the 3rd triode, potentiometer, transformer, rectifier and microampere meter, positive source simultaneously with the first end of described the 6th resistance, the collector of described the second triode, the first end of described the 3rd resistance, the tap of described transformer, the sliding end of described potentiometer is connected with the first end of described potentiometer, power cathode simultaneously with the negative pole of described rectifier, the first end of described the 7th resistance, the first end of described the 5th resistance, the first end of described the 4th resistance, the first end of described the second resistance, the first end of described transformer secondary output, the first end of described the second resistance is connected with the first end of described the first resistance, the second end while of described the first resistance and the first end of described the first electric capacity, the second end of the base stage of described the first triode and described potentiometer is connected, the second end while of described the first electric capacity and the second end of described the second resistance, the emitter of described the first triode, the first end of described the second electric capacity is connected with the first end of described primary, the collector of described the first triode is connected with the second end of described the second electric capacity and the first end of described primary simultaneously, the second end of described transformer secondary output is connected with the second end of described the second resistance and the first end of test lead simultaneously, the second end of described test lead is connected with the first end of described the 3rd electric capacity, the second end while of described the 3rd electric capacity and the second end of described the 3rd resistance, the second end of described the 4th resistance is connected with the base stage of described the second triode, the emitter of described the second triode is connected with the second end of described the 5th resistance and the base stage of described the 3rd triode simultaneously, the emitter of described the 3rd triode is connected with the second end of described the 7th resistance, the collector of described the 3rd triode is connected with the second end of described the 6th resistance and the first end of described the 4th electric capacity simultaneously, the second end of described the 4th electric capacity is connected with the positive pole of described rectifier, the first end of the input end of described rectifier is connected with described the 5th first end of electric capacity and the first end of described microampere meter simultaneously, the second end of the input end of described rectifier is connected with the second end of described the 5th electric capacity and the second end of described microampere meter simultaneously.
The beneficial effects of the utility model are:
The utility model is a kind of easy electronics moisture content measuring device, is applied to the measurement of moisture material, have advantages of that circuit structure is simple, adopt electronic component few, with low cost, and measurement of the present utility model is accurate, is conducive to universal and promotes.
Accompanying drawing explanation
Fig. 1 is circuit structure schematic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1: the utility model comprises that the first resistance R 1 is to the 7th resistance R 7, the first capacitor C 1 is to the 5th capacitor C 5, the first triode VT1, the second triode VT2, the 3rd triode VT3, potentiometer RP, transformer T, rectifier DR and microampere meter A, positive source simultaneously with the first end of the 6th resistance R 6, the collector of the second triode VT2, the first end of the 3rd resistance R 3, the tap of transformer T, the sliding end of potentiometer RP is connected with the first end of potentiometer RP, power cathode simultaneously with the negative pole of rectifier DR, the first end of the 7th resistance R 7, the first end of the 5th resistance R 5, the first end of the 4th resistance R 4, the first end of the second resistance R 2, the first end of T level of transformer, the first end of the second resistance R 2 is connected with the first end of the first resistance R 1, the second end while of the first resistance R 1 and the first end of the first capacitor C 1, the second end of the base stage of the first triode VT1 and potentiometer RP is connected, the second end while of the first capacitor C 1 and the second end of the second resistance R 2, the emitter of the first triode VT1, the first end of the second capacitor C 2 is connected with the elementary first end of transformer T, the collector of the first triode VT1 is connected with the second end of the second capacitor C 2 and the elementary first end of transformer T simultaneously, the second end of T level of transformer is connected with the second end of the second resistance R 2 and the first end of test lead CS simultaneously, the second end of test lead CS is connected with the first end of the 3rd capacitor C 3, the second end while of the 3rd capacitor C 3 and the second end of the 3rd resistance R 3, the second end of the 4th resistance R 4 is connected with the base stage of the second triode VT2, the emitter of the second triode VT2 is connected with the second end of the 5th resistance R 5 and the base stage of the 3rd triode VT3 simultaneously, the emitter of the 3rd triode VT3 is connected with the second end of the 7th resistance R 7, the collector of the 3rd triode VT3 is connected with the second end of the 6th resistance R 6 and the first end of the 4th capacitor C 4 simultaneously, the second end of the 4th capacitor C 4 is connected with the positive pole of rectifier DR, the first end of the input end of rectifier DR is connected with the first end of the 5th capacitor C 5 and the first end of microampere meter A simultaneously, the second end of the input end of rectifier DR is connected with the second end of the 5th capacitor C 5 and the second end of microampere meter A simultaneously.
As shown in Figure 1: in the oscillatory circuit forming at the first triode VT1, elementary and the first capacitor C 1 of transformer T forms resonant tank, its oscillation frequency is 2KHz, the second capacitor C 2 is feedback capacity, signal, by the secondary potential electrode that reaches of transformer T, is sent to the emitter follower being comprised of the second triode VT2 through measured matter, then amplifies through the 3rd triode VT3, signal after amplification is coupled and by rectifier DR rectification and the 5th capacitor C 5 filtering, finally by microampere meter A, is indicated through the 4th capacitor C 4.
Claims (1)
1. an easy electronics moisture content measuring device, it is characterized in that: comprise the first resistance to the seven resistance, the first electric capacity to the five electric capacity, the first triode, the second triode, the 3rd triode, potentiometer, transformer, rectifier and microampere meter, positive source simultaneously with the first end of described the 6th resistance, the collector of described the second triode, the first end of described the 3rd resistance, the tap of described transformer, the sliding end of described potentiometer is connected with the first end of described potentiometer, power cathode simultaneously with the negative pole of described rectifier, the first end of described the 7th resistance, the first end of described the 5th resistance, the first end of described the 4th resistance, the first end of described the second resistance, the first end of described transformer secondary output, the first end of described the second resistance is connected with the first end of described the first resistance, the second end while of described the first resistance and the first end of described the first electric capacity, the second end of the base stage of described the first triode and described potentiometer is connected, the second end while of described the first electric capacity and the second end of described the second resistance, the emitter of described the first triode, the first end of described the second electric capacity is connected with the first end of described primary, the collector of described the first triode is connected with the second end of described the second electric capacity and the first end of described primary simultaneously, the second end of described transformer secondary output is connected with the second end of described the second resistance and the first end of test lead simultaneously, the second end of described test lead is connected with the first end of described the 3rd electric capacity, the second end while of described the 3rd electric capacity and the second end of described the 3rd resistance, the second end of described the 4th resistance is connected with the base stage of described the second triode, the emitter of described the second triode is connected with the second end of described the 5th resistance and the base stage of described the 3rd triode simultaneously, the emitter of described the 3rd triode is connected with the second end of described the 7th resistance, the collector of described the 3rd triode is connected with the second end of described the 6th resistance and the first end of described the 4th electric capacity simultaneously, the second end of described the 4th electric capacity is connected with the positive pole of described rectifier, the first end of the input end of described rectifier is connected with described the 5th first end of electric capacity and the first end of described microampere meter simultaneously, the second end of the input end of described rectifier is connected with the second end of described the 5th electric capacity and the second end of described microampere meter simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320554239.4U CN203561601U (en) | 2013-09-07 | 2013-09-07 | Easy electronic moisture content tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320554239.4U CN203561601U (en) | 2013-09-07 | 2013-09-07 | Easy electronic moisture content tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203561601U true CN203561601U (en) | 2014-04-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320554239.4U Expired - Fee Related CN203561601U (en) | 2013-09-07 | 2013-09-07 | Easy electronic moisture content tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203561601U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2013
- 2013-09-07 CN CN201320554239.4U patent/CN203561601U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140423 Termination date: 20140907 |
|
| EXPY | Termination of patent right or utility model |