CN101698974B - Measurement instrument of moisture regaining rate of cotton wool - Google Patents
Measurement instrument of moisture regaining rate of cotton wool Download PDFInfo
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- CN101698974B CN101698974B CN2009102460545A CN200910246054A CN101698974B CN 101698974 B CN101698974 B CN 101698974B CN 2009102460545 A CN2009102460545 A CN 2009102460545A CN 200910246054 A CN200910246054 A CN 200910246054A CN 101698974 B CN101698974 B CN 101698974B
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Abstract
The invention discloses a measurement instrument of the moisture regaining rate of cotton wool, which comprises a single chip computer, a battery, a temperature sensor, a direct-current voltage-stabilizing measurement device, an operation component and an instrument panel, wherein the temperature sensor is connected with the single chip computer, the direct-current voltage-stabilizing measurement device is connected with the battery, the operation component is used for inputting a command to the single chip computer, and the instrument panel is used for installing the operation component. The temperature sensor adopts a digital type temperature sensor, the digital type temperature sensor is embedded on the instrument panel, and an induction opening of the sensor is exposed to outside and is aligned with the external surface of the instrument panel. Thus, on one hand, the sensor can be communicated with outside in an unobstructed way, and the outside temperature is accurately measured. On the other hand, the defect of easy damage when bulging can be avoided. The single chip computer and the battery are connected by an electronic switch, the operation component is a key, the instrument panel is a full key type panel, and the panel has beautiful appearance and simple and convenient operation.
Description
Technical field
The present invention relates to a kind of analyzer, be specifically related to a kind of measurement instrument of moisture regaining rate of cotton wool.
Background technology
Raw cotton is a kind of material that is easy to moisture absorption, and moisture absorption is loose moist very strong, its water capacity directly influences its quality, the regain of raw cotton is the raw cotton moisture that records under rated condition, the difference of wet quality and dry mass is represented the percentage of dry mass with containing of sample, the regain of raw cotton is the important evidence of industrial and commercial transaction, make trade fair and just, original method is to use Oven Method, obtain the wet quality and the dry mass of containing of raw cotton after weighing for twice respectively, though this method is directly correct, every oversize and poor efficiency of Measuring Time.The characteristic that has different resistance values according to the cotton fiber of different regains, quality at sample, under the certain situation of experimental condition such as density and polar plate voltage, the resistance of raw cotton and its regain are negative correlation, measure size of current by the cotton fiber sample, draw the regain of raw cotton indirectly, the electric-resistivity method principle records the analyzer of moisture regain rate of raw cotton in view of the above, if will measure the equivalent resistance of raw cotton accurately, need guarantee that raw cotton has certain compactedness, quality and polar plate voltage, polar plate voltage is selected 90V DC measurement voltage for use, and the process that obtains 90V DC measurement voltage at present is to carry out rectification behind the oscillation boosting again.In the existing measurement instrument of moisture regaining rate of cotton wool, choose 50g raw cotton sample, evenly put into the cotton chamber of survey between two battery lead plates, again battery lead plate is compressed raw cotton, connect power supply after reaching 735N, adopt the 90V high pressure as measuring voltage, and carry out control survey with single-chip microcomputer, measurement is by the size of current of raw cotton, draw regain through conversion, be connected with analog temperature sensor on the single-chip microcomputer, by temperature inductor measurement result carried out the non-linear temperature compensation correction, revised numerical value is the actual moisture regain of raw cotton, this analog temperature sensor is positioned on the battery lead plate, the induction mouth of sensor can contact with the raw cotton sample in surveying cotton chamber, but because the reaction speed of analog temperature sensor is slow, and the time that making alive is measured is shorter usually, generally have only two or three seconds, then analog temperature sensor is actually the temperature of detection less than the raw cotton sample, near the temperature of the air just battery lead plate of acquisition, and the raw cotton actual moisture regain that then obtains can be inaccurate.And analog temperature sensor need repeatedly debug new analog temperature sensor when changing, and changes very inconvenient.In the analyzer, be used for all selecting mechanical turntable type for use to the functional unit of single-chip microcomputer input instruction, mechanically actuated is loaded down with trivial details not attractive in appearance again, and mechanical wear also can influence the service life of instrument.
Summary of the invention
The object of the present invention is to provide a kind of measurement instrument of moisture regaining rate of cotton wool that adopts digital temperature sensor and full button instrument panel, the induction mouth of digital temperature sensor is exposed in this analyzer, can experience ambient temperature exactly.
In order to reach above purpose, the technical solution used in the present invention is: a kind of measurement instrument of moisture regaining rate of cotton wool, comprise single-chip microcomputer, battery, the temperature sensor that is connected with described single-chip microcomputer, the DC voltage-stabilizing measurement mechanism that is connected with described battery, be used for functional unit to described single-chip microcomputer input instruction, the instrument panel of described functional unit is installed, described temperature sensor adopts digital temperature sensor, this digital temperature sensor is inlaid on the described instrument panel, the induction mouth of this sensor is exposed, and flush with the outer surface of described instrument panel, be connected by electronic switch between described single-chip microcomputer and the described battery, described functional unit is a button, and described instrument panel is full button panel.
Described DC voltage-stabilizing measurement mechanism is input voltage can be realized voltage stabilizing output when variation or load current can change between the 5V-12V between 0-3mA a 90V DC voltage-stabilizing measurement mechanism.
Be connected with sound circuit on the described single-chip microcomputer, be connected with loudspeaker on the described sound circuit.
Be connected with on the described single-chip microcomputer and can show what LCD backlight Chinese display of battery electric quantity by battery symbol, this display is contained under the described instrument panel.
Because the present invention has adopted above technical scheme, its advantage is: adopt digital temperature sensor, can directly be connected with single-chip microcomputer, carry data signal, and digital temperature sensor interchangeability is good, change the new digital temperature sensor in back and can directly be connected use with single-chip microcomputer, need not repeatedly to debug, use simple, the induction mouth of digital temperature sensor and the outer surface of instrument panel flush, by rational Position Design, sensor can be without hindrance every communicating with the external world so on the one hand, measures ambient temperature exactly, the shortcoming of damaging easily in the time of can preventing to protrude on the other hand, instrument panel adopts complete touch-tone panel, good looking appearance and easy and simple to handle.
Description of drawings
Fig. 1 is that master of the present invention looks schematic diagram;
Fig. 2 is a schematic side view of the present invention;
Fig. 3 is a circuit schematic block diagram of the present invention.
The specific embodiment
Further set forth concrete structure of the present invention below in conjunction with accompanying drawing.
Shown in Fig. 1-3, a kind of measurement instrument of moisture regaining rate of cotton wool, instrument panel 2 is equipped with in the outside of the casing 1 of analyzer, 90V HVDC voltage stabilizing measurement mechanism 8 is equipped with in the inside of casing 1 on main circuit board 7, fluid drive, full scale, correcting device 9, sound circuit 10, analog to digital conversion circuit 11, electronic switch 12, single-chip microcomputer 13, at casing 1 top downside drawer type battery case 16 is installed, but selecting type push rod pressue device 17 about install casing 1 bottom, push rod in this pressue device 17 can be located at the left side or the right of casing 1, use the different situations of the left hand or the right hand to adapt to the different people custom, the connected mode that this pressue device 17 adopts wheel and rack to match, drive moving up and down of battery lead plate 15 by moving up and down of tooth bar, battery lead plate has two, one is fixed plate electrode 14, another piece is a removable electrode plate 15, form between fixed plate electrode 14 and the battery lead plate 15 and survey cotton chamber, raw cotton to be measured places to be surveyed in the cotton chamber.Be connected by electronic switch 12 between single-chip microcomputer 13 and the battery, battery links to each other with 90V HVDC voltage stabilizing measurement mechanism 8, by voltage stabilizing measurement mechanism 8, obtain the 90V high pressure, and when variation or load current change between 0-3mA between the input voltage 5V-12V, still can stably export the 90V high pressure, the 90V high pressure is applied between fixed plate electrode 14 and the battery lead plate 15, be used to measure electric current by raw cotton, obtain the current analog amount, the current analog amount obtains data signal through analog to digital conversion circuit 11 conversions, in the input single-chip microcomputer 13, calculate and obtain regain, also be connected with digital temperature sensor 6 on the single-chip microcomputer 13 by single-chip microcomputer 13, this digital temperature sensor 6 is inlaid on the instrument panel 2, the induction mouth of this sensor is exposed, and thermometric in real time is according to the ambient temperature that measures, can carry out the nonlinear compensation correction to the moisture regain rate of raw cotton numerical value of measuring, revised numerical value is actual regain.Be connected with LCD backlight Chinese display 3 on the single-chip microcomputer 13, this display 3 is contained in instrument panel 2 times, then actual moisture regain can be sent to display 3 demonstrations, on display 3, can also show battery symbol, by what of battery symbol pilot cell electric weight, for user's observation, to carry out the preparation of changing battery in advance.Be connected with sound circuit 10 on the single-chip microcomputer 13, be connected with loudspeaker 4 on the sound circuit 10, then actual moisture regain can be reported by sound circuit 10 and loudspeaker 4.Adopt digital temperature sensor 6, can directly be connected, carry data signal with single-chip microcomputer 13, and digital temperature sensor interchangeability is good, changing the new digital temperature sensor in back can directly be connected use with single-chip microcomputer, need not repeatedly to debug, and uses simple.The induction mouth of digital temperature sensor 6 and the outer surface of instrument panel 2 flush, by rational position is set, sensor can be without hindrance every communicating with the external world so on the one hand, measures ambient temperature exactly, the shortcoming of damaging easily in the time of can preventing to protrude on the other hand.Single-chip microcomputer 13 also is connected with the functional unit that is used to import instruction, this functional unit has formed the button on the panel 2, as power key, voice key etc., the duty of control single chip computer 13, by electronic switch 12 is set, instrument panel 2 can adopt complete touch-tone panel, and is attractive in appearance and easy and simple to handle.Also be connected with fluid drive, full scale, correcting device 9 on the single-chip microcomputer 13, we know, when actual measurement, the DC voltage that is added on the battery lead plate divides three layers in work, upper strata voltage, middle level voltage, lower floor's voltage are selected measuring voltage according to the dried tidal excursion degree of survey raw cotton, and this fluid drive, full scale, correcting device 9 are used for regulating automatically the voltage of different gears, automatically transfer full, correction, measure.Two calibrating sockets 5 are arranged on the instrument panel 2, and these two calibrating sockets 5 are in parallel with battery lead plate, as shown in Figure 3, be connected with resistance between two calibrating sockets 5, be used for testing department the accuracy of instrument is detected, corresponding, the calibrating key is set on the instrument panel 2.
Analyzer of the present invention is when work, get raw cotton sample 50 grams, evenly put into and survey cotton chamber, but the pressurization of selecting type push rod pressue device makes to move on the movable battery lead plate and compresses raw cotton about operation, connect power supply when reaching 735N and begin test, digital temperature sensor is measured temperature immediately, and the moisture regain rate of raw cotton numerical value of measuring carried out the nonlinear compensation correction, again revised numerical value is presented on the LCD backlight Chinese display, simultaneously revised numerical value is quoted by sound circuit, test process is finished.
Claims (3)
1. measurement instrument of moisture regaining rate of cotton wool, comprise single-chip microcomputer, battery, the temperature sensor that is connected with described single-chip microcomputer, the DC voltage-stabilizing measurement mechanism that is connected with described battery, be used for functional unit to described single-chip microcomputer input instruction, the instrument panel of described functional unit is installed, it is characterized in that: described temperature sensor adopts digital temperature sensor, this digital temperature sensor is inlaid on the described instrument panel, the induction mouth of this sensor is exposed, and flush with the outer surface of described instrument panel, be connected by electronic switch between described single-chip microcomputer and the described battery, described functional unit is a button, described instrument panel is full button panel, and described DC voltage-stabilizing measurement mechanism is input voltage can be realized voltage stabilizing output when variation or load current can change between the 5V-12V between 0-3mA a 90V DC voltage-stabilizing measurement mechanism.
2. a kind of measurement instrument of moisture regaining rate of cotton wool according to claim 1 is characterized in that: be connected with sound circuit on the described single-chip microcomputer, be connected with loudspeaker on the described sound circuit.
3. a kind of measurement instrument of moisture regaining rate of cotton wool according to claim 1 is characterized in that: be connected with on the described single-chip microcomputer and can show what LCD backlight Chinese display of battery electric quantity by battery symbol, this display is contained under the described instrument panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102460545A CN101698974B (en) | 2009-11-19 | 2009-11-19 | Measurement instrument of moisture regaining rate of cotton wool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102460545A CN101698974B (en) | 2009-11-19 | 2009-11-19 | Measurement instrument of moisture regaining rate of cotton wool |
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| Publication Number | Publication Date |
|---|---|
| CN101698974A CN101698974A (en) | 2010-04-28 |
| CN101698974B true CN101698974B (en) | 2011-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009102460545A Expired - Fee Related CN101698974B (en) | 2009-11-19 | 2009-11-19 | Measurement instrument of moisture regaining rate of cotton wool |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818448B (en) * | 2010-04-30 | 2011-05-18 | 苏州科慧电子技术研究所(有限公司) | Tester for moisture regain rate of raw cotton |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2210693A (en) * | 1987-10-02 | 1989-06-14 | Scanflow Systems Ltd | An electronic moisture measuring instrument |
| US5663650A (en) * | 1994-03-31 | 1997-09-02 | Farmex, Inc. | Portable grain moisture meter |
| CN2433622Y (en) * | 2000-08-02 | 2001-06-06 | 樊小宁 | Gearshift of instrument for measuring cotton-regain percentage |
| CN1372134A (en) * | 2001-02-28 | 2002-10-02 | 张友信 | Cotton moisture electric measuring method and electric measurer thereof |
| CN201567493U (en) * | 2009-11-19 | 2010-09-01 | 苏州科慧电子技术研究所(有限公司) | Moisture regain tester for raw cotton |
-
2009
- 2009-11-19 CN CN2009102460545A patent/CN101698974B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2210693A (en) * | 1987-10-02 | 1989-06-14 | Scanflow Systems Ltd | An electronic moisture measuring instrument |
| US5663650A (en) * | 1994-03-31 | 1997-09-02 | Farmex, Inc. | Portable grain moisture meter |
| CN2433622Y (en) * | 2000-08-02 | 2001-06-06 | 樊小宁 | Gearshift of instrument for measuring cotton-regain percentage |
| CN1372134A (en) * | 2001-02-28 | 2002-10-02 | 张友信 | Cotton moisture electric measuring method and electric measurer thereof |
| CN201567493U (en) * | 2009-11-19 | 2010-09-01 | 苏州科慧电子技术研究所(有限公司) | Moisture regain tester for raw cotton |
Non-Patent Citations (4)
| Title |
|---|
| JP特开平8-173938A 1996.07.09 |
| 吴国新等."棉包回潮率在线测试系统的研制".《中国纤检》.2006,(第1期),30-32页. |
| 胡春雷."棉包回潮率在线测试装置新技术应用".《中国棉花加工》.2005,(第6期),12-15页. |
| 范力旻."新型棉花水分测试仪".《中国棉花》.2007,第34卷(第12期),第12-17页. |
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| CN101698974A (en) | 2010-04-28 |
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