CN2285898Y - On-line portable yarn evenness tester - Google Patents
On-line portable yarn evenness tester Download PDFInfo
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- CN2285898Y CN2285898Y CN 96236082 CN96236082U CN2285898Y CN 2285898 Y CN2285898 Y CN 2285898Y CN 96236082 CN96236082 CN 96236082 CN 96236082 U CN96236082 U CN 96236082U CN 2285898 Y CN2285898 Y CN 2285898Y
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Abstract
The utility model relates to an on-line portable testing and analyzing device for the uniformity of evenness, which is mainly used for on-line testing the qualitative variability CV% value of the linear density of long and thin textile materials and the wave spectrogram of periodic qualitative variability. The utility model is composed of a capacitance type sensor and a host machine. The measuring gap of the capacitance type sensor is fixed with a capacitance metal pole plate and the periphery of an insulation layer of the capacitance metal pole plate is provided with a metal protection ring; the width W of the metal protection ring is wider than 12 mm or is equal to 12 mm. The utility model can overcome that electric field scattering influences on test result. Having the advantages of reasonable circuit design, few components, small complete machine size, low cost, high test result accuracy rate, the utility model is especially suitable for on-line testing in textile mills.
Description
The utility model relates to a kind of online portable evenness tester analyser, belongs to a kind of line density qualitative variability CV% value of online detection elongated textile material and the weaving electronic device of the wave spectrogram of qualitative variability periodically.
The portable evenness tester analyser of conventional online; the peripheral no metal coating ring of the electric capacity metal polar plate of its capacitance type sensor; the electric field scattering at the two-plate edge of electric capacity causes the sensor displacement of shaped objects on every side; and, influence precision of test result to electric field effects between the electric capacity two-plate.In addition, the width of metal coating ring is the bigger the better but gets over the large sensor volume and increases on the principle, uses very inconvenient; lost the superiority of portable instrument; therefore should make the metal coating ring width the smaller the better in the design, but width is too small, then to no effect as far as possible.Also have the portable evenness tester analyser function of conventional online single, line density qualitative variability CV% value that can only test sample has influenced promoting the use of of this instrument.
The purpose of this utility model is to design a kind of online portable evenness tester analyser, not only overcome existing capacitance type sensor owing to the influence of electric field scattering to test result, and sensor bulk is little.In addition, this Instrument Circuit Designing is reasonable, adopts components and parts few, thereby makes this instrument volume less relatively, and cost is lower, and multiple functional, and test result accuracy rate height helps the online portable use of textile mills.
The utility model design proposal:
Online portable evenness tester analyser; electric capacity metal polar plate (3) by capacitance type sensor (1), main frame (2) formation, capacitance type sensor (1) is fixed on the insulation course (4); the periphery of insulation course (4) is provided with metal coating ring (5); and the width≤12mm of metal coating ring (5), and metal coating ring (5) is made by metallic copper.
The elementary two ends of the output termination telefault L of the high-frequency oscillating circuits in the capacitance type sensor (1) and the input end of coherent detector; the secondary centre tap ground connection of telefault L; two ends connect the capacitance bridge that is made of C8, C9, CT, CX respectively; wherein CX is the metal polar plate electric capacity of band metal coating ring (5); the input end of the balanced termination coherent detector of capacitance bridge; the input end of the low-pass filter of output termination of coherent detector, the signal output part of low-pass filter connect main frame (2) signal input part.
The signal input part of main frame (2) connects the input end of zeroing circuit, the input end of the output termination average circuit of zeroing circuit and the inside AD of main process computer, the input end of the output termination wave spectrum wave filter of average circuit and the input end of CV value filtering device, the output termination master process computer input end of CV value filtering device.The a plurality of output terminals of main process computer connect the input end of zeroing circuit respectively, the input end of average circuit, display interface device, keyboard interface and printer interface, the wave spectrum filter output connects wave spectrum process computer input end through AD, and the wave spectrum process computer connects with main process computer is two-way through data-interface.
The utility model compared with prior art; the one, the electric capacity metal polar plate periphery of capacitance type sensor is provided with the metal coating ring; and the metal coating ring width is selected rationally; not only make the electric field stability of sensor effective capacitance effective; overcome existing capacitance type sensor owing to the influence of electric field scattering to test result; and volume is little, and test result is disturbed little, the 2nd, and circuit design is reasonable; the integrated level height; multiple functional, adopt components and parts few, thereby make this instrument not only easy and simple to handle; and volume is little; cost is low, and test result accuracy rate height helps promoting the use of in textile mills.
Fig. 1 is the utility model contour structures synoptic diagram.
Fig. 2 is the utility model host backplane synoptic diagram.
Fig. 3 is the utility model capacitive sensor structure synoptic diagram.
Fig. 4 is the A-A cut-open view of Fig. 3.
Fig. 5 is the B-B cut-open view of Fig. 3.
Fig. 6 is the utility model capacitive sensor structure synoptic diagram.
Fig. 7 is the C-C cut-open view of Fig. 6.
Fig. 8 is the D-D cut-open view of Fig. 6.
Fig. 9 is the utility model capacitance type sensor circuit structure block scheme.
Figure 10 is the utility model host circuit block diagram.
Figure 11 is the utility model capacitance type sensor circuit theory diagrams.
Figure 12 is the utility model host circuit schematic diagram.
Embodiment 1: describe first kind of embodiment of the present utility model in conjunction with instructions the 5th part and accompanying drawing 1,2,3,4,5,6,7,8,9,10,11,12.Main frame (2) is furnished with four～five capacitance type sensors (1), and to adapt to various sample, one of them capacitance type sensor (1) joins by the signal socket on cable and main frame (2) postnotum during use.Capacitive sensor structure is basic identical with existing online capacitive sensor structure, by formations such as housing (6), measurement seam (7), circuit boards.Difference is that the periphery of the insulation course (4) of measurement seam (7) one side fixed capacity metal polar plates (3) is provided with metal coating ring (5) and metal coating ring (5) is made with metallic copper, and its width W is 9～12mm.
Main frame (2) is reached by housing (8), panel (9), backboard (10), handle (11), circuit board and constitutes towards electrical equipment, panel (9) is provided with LCDs (12), keyboard (13), under-voltage pilot lamp (14) and towards electric pilot lamp (15), backboard (10) is provided with instrument connection (16), printer interface (17), signaling interface (18), 220 deep-sited part of the chong channel electric jacks and master switch, fuse.
Circuit board in the capacitance type sensor is provided with high-frequency oscillating circuits, telefault L, capacitance bridge C 8, C9, CT, CX, coherent detector and low-pass filter.High-frequency oscillating circuits produces the high frequency ac signal of tens megahertzes; constitute by IC1 (CA3028B) and C2, C3, C6, R1, R2, R3, RX, W1; 8 pin and 6 pin by IC1 are exported to the elementary of telefault L; the secondary centre tap ground connection of inductance; two ends connect the capacitance bridge that is made of C8, C9, CT, CX respectively, and wherein CX is the metal polar plate electric capacity of band metal coating ring.The balance end of electric bridge is exported to coherent detector and low-pass filter.Coherent detector and low-pass filter are made of IC2 (XR-2208CP) and R4, R5, R6, R7, R8, R9, R10, R11, R12, C7, C14, C17.The high frequency sample signal is by the input of 3 pin of IC2, and simultaneously, 6 pin of high-frequency oscillating circuits IC1 input to the AC signal of tens identical megahertzes of 5 pin of IC2, are used for the coherent detection of IC2.Simultaneously, IC2 filters the AC signal and the clutter of tens megahertzes, then 14 pin of IC2 output sample signal.Principle of work is, when in the sensor plate electric capacity during no sample, the bridge balance end is exported the AC signal of tens megahertzes, handles the no sample signal of back output by the phase wave detector then.When sensor plate electric capacity has sample to pass through, the electric capacity size of plates capacitance will change with the quality of sample, electric bridge is just exported the sample mass variable signal that has tens megahertz carrier waves like this, through coherent detector and low-pass filter, the carrier wave of tens megahertzes is examined, just obtain the signal that sample mass changes, this signal is exported to instrument host and is further handled calculating.
Host circuit adopts up-to-date electronic computer technology and modern electronic technology, and host computer adopts high-performance monolithic 16-bit computer MSC80C196 chip, makes zeroing and average handle and finishes automatically.And the circuit that connects display, keyboard and printer is easy.The wave spectrum process computer adopts digital processing computing machine TMS320C25, makes wave spectrum calculate and finishes with minimum device.The miniaturization that is chosen for this instrument of these two computing machines (promptly portable) is laid a good foundation.
Host circuit comprises:
1, power circuit: it offer instrument+5v ,+12v ,-the 12v direct supply.It is by chargeable battery B1,9.3v voltage is supplied with 1 pin of three-terminal voltage-stabilizing pipe LM323K, and 3 pin output+5v power supplys are given instrument, inverter BCT5D12 be+5v input is reverse into+12v ,-12v exports and uses for instrument.Simultaneously electric battery B1 exports to the under-voltage indicating circuit of battery that N6 (triode) and R24, R25, R26, W5, D4 (light emitting diode) form, and when cell voltage was reduced to 8.4v, under-voltage pilot lamp was bright.
2, zeroing circuit: zeroing refers to, in the sensor during no sample, and it is zero that sensor circuit is answered output signal.Yet, because the drift of tiny foreign material and circuit is often arranged in the sensor plate, make and impossible output zero-signal before each test, all must return to zero like this, when being calculated, main frame do not produce error.This circuit is finished zeroing function by U1 (main process computer) control.Sensor signal is given the input end of the amplifier that is made of N1, C1, R2, R4 via R1, i.e. 2 pin of N1, and 6 pin of N1 are the output of zeroing.It is 6 pin of N2:B that zeroing output is given two times of amplifier input terminal that are made of N2:B, D3, R10, R11 via R9,7 pin of N2:B are exported to 5 pin of U1, be inner AD, calculate after the 39 pin output of U1 through U1, through R6 give the DA that constitutes by N2:A, C2, R3, R5, R7, R8, W1 become one identical with the sensor signal size, the signal that direction is opposite inputs to 2 pin of N1 and finishes zeroing function.
3, average circuit: because the kind of sample is variant,, when test, need the mean value of signal is fixed on the set potential, just need average to handle so the signal power is also inequality.Average is handled by main process computer control and is finished automatically.Sample signal is handled 15 pin that 6 pin of back N 1 are defeated by the input end U3 of average circuit through zeroing, makes 6 pin of the output terminal N3 of average circuit export the sample mean value signal on a certain set potential through U1 control by the average processing of circuit that constitutes through U3, N3 and C3, C4, R12, W2.
4, CV value filtering device: effect is to filter useless high-frequency signal, and it constitutes low channel filter by N4, R16, R17, R18, R19, W4, C8.Mean value signal is imported through R16, and 6 pin of output N4 calculate the CV value for 6 pin of U1 after filtering.
5, wave spectrum wave filter: be three grades of chebyshev low-pass filters, constitute that 6 pin that are output as N5 are in the AD circuit by N5, R13, R14, R15, C5, C6, C7.
6, AD circuit: effect is that the analog signal conversion with sample becomes digital signal and latchs, and calculates wave spectrum for U2.It is made of U4, U19, U20 and control circuit.
7, wave spectrum process computer: it is made of U2 and OS (40MHZ crystal).Finish that wave spectrum calculates and the result is existed in the memory.
8, memory: constitute the memory of 16K * 16 by U5, U6, U7, U8, finish the program of depositing the wave spectrum process computer and wave spectrum and handle all test results that intermediate result and main process computer calculate.
9, data-interface: be made of U9, U10, U11, U12, main frame adopts two CPU parallel processing techniques.Will have data to transmit between two CPU, when handling, necessary again self-organizing system does not disturb mutually simultaneously.Data-interface is finished this work, and its control is finished by U1 and control circuit.Wherein U9, U10 finish the address connection and separate the two-way transmission that U11, U12 finish data.
10, main process computer: it is finished the control and the CV value of complete machine and calculates, and is the heart of main frame.Constitute by U1 and U26, U22:B and C19, C10, C11, R21, RA1, RA2, RA3, D1.U26, C9, C10 produce among the U1 AD, and required+5v reference power supply is exported to 13 pin of U1.U22:B, R21, C11, D1 produce power-on reset signal, and promptly 9 pin of U22:B are exported to 16 pin of U1, and RA2, RA3 are that data/address wire of U1 is the pull-up resistor network of 45-60 pin.
11, memory under program: constitute by U13, U14, U15, U16 single-chip microcomputer memory method routinely.
12, display interface device: display is selected liquid crystal dots configuration display for use.According to the display requirement, main frame U1 provide M0～M7,8 bit data signal wires and control signal N7, CS, RD, WR ,+5v, ,-12v regulates by W3 and supplies with.
13, keyboard interface: 14 buttons of this instrument panel design, wherein 0～9 10 numeric keys, and, RUN (operation), INT (interruption), RES (resetting) function key, its function is: input test parameter, control instrument moves.By 30,31,32,11,10,9,8,15 pin of U1 and reset and ground wire constitutes keyboard interface.
14, printer interface: 21,4,19 pin by U26 and U1 are formed, and can directly join 80 row, 9 needle printers.
15, timing control circuit is made of U17, U18, U21, U24, U23, U22, and this part mainly is auxiliary main process computer, the work of control complete machine.Require to finish control task according to main frame.
Embodiment 2: structure is substantially the same manner as Example 1, and difference is that the periphery of the insulation course (4) of measurement seam (7) both sides fixed capacity metal polar plates (3) on the capacitance type sensor (1) is equipped with metal coating ring (5).
Claims (4)
1, a kind of online portable evenness tester analyser; constitute by capacitance type sensor (1), main frame (2); the electric capacity metal polar plate (3) of capacitance type sensor (1) is fixed on the insulation course (4); it is characterized in that: the periphery of insulation course (4) is provided with metal coating ring (5), and the width W≤12mm of metal coating ring (5).
2, online portable evenness tester analyser according to claim 1, it is characterized in that: described metal coating ring (5) is made by metallic copper.
3; online portable evenness tester analyser according to claim 1; it is characterized in that: the elementary two ends of the output termination telefault L of the high-frequency oscillating circuits in the capacitance type sensor (1) and the input end of coherent detector; the secondary centre tap ground connection of telefault L; two ends connect respectively by C8; C9; CT; the capacitance bridge that CX constitutes; wherein CX is the metal polar plate electric capacity of band metal coating ring (5); the input end of the balanced termination coherent detector of capacitance bridge; the input end of the low-pass filter of output termination of coherent detector, the signal output part of low-pass filter connect main frame (2) signal input part.
4, online portable evenness tester analyser according to claim 1, it is characterized in that: the signal input part of main frame (2) connects the input end of zeroing circuit, the input end of the output termination average circuit of zeroing circuit and the inside AD of main process computer, the input end of the output termination wave spectrum wave filter of average circuit and the input end of CV value filtering device, the output termination master process computer input end of CV value filtering device, the a plurality of output terminals of main process computer connect the input end of zeroing circuit respectively, the input end of average circuit, display interface device, keyboard interface and printer interface, the wave spectrum filter output connects wave spectrum process computer input end through AD, and the wave spectrum process computer connects with main process computer is two-way through data-interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96236082 CN2285898Y (en) | 1996-07-17 | 1996-07-17 | On-line portable yarn evenness tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96236082 CN2285898Y (en) | 1996-07-17 | 1996-07-17 | On-line portable yarn evenness tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2285898Y true CN2285898Y (en) | 1998-07-08 |
Family
ID=33911986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96236082 Expired - Fee Related CN2285898Y (en) | 1996-07-17 | 1996-07-17 | On-line portable yarn evenness tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2285898Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1324175C (en) * | 2003-03-11 | 2007-07-04 | 陕西长岭纺织机电科技有限公司 | Accurate determination of weight sample, such as rough slivers in fabric material inspecting apparatus |
| CN102352544A (en) * | 2011-07-06 | 2012-02-15 | 太仓宏大方圆电气有限公司 | Capacitance type yarn levelness uniformity instrument |
| CN105021488A (en) * | 2015-08-12 | 2015-11-04 | 中冶长天国际工程有限责任公司 | Method for testing even mixing degree of mixed iron mine pellet material |
| CN107677297A (en) * | 2017-10-12 | 2018-02-09 | 广州市康超信息科技有限公司 | A kind of protective device of photoelectric sensor and means of defence |
-
1996
- 1996-07-17 CN CN 96236082 patent/CN2285898Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1324175C (en) * | 2003-03-11 | 2007-07-04 | 陕西长岭纺织机电科技有限公司 | Accurate determination of weight sample, such as rough slivers in fabric material inspecting apparatus |
| CN102352544A (en) * | 2011-07-06 | 2012-02-15 | 太仓宏大方圆电气有限公司 | Capacitance type yarn levelness uniformity instrument |
| CN105021488A (en) * | 2015-08-12 | 2015-11-04 | 中冶长天国际工程有限责任公司 | Method for testing even mixing degree of mixed iron mine pellet material |
| CN107677297A (en) * | 2017-10-12 | 2018-02-09 | 广州市康超信息科技有限公司 | A kind of protective device of photoelectric sensor and means of defence |
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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 |