CN205262909U - Automatic tension determinator of constant temperature - Google Patents

Abstract

The utility model relates to an automatic tension determinator of constant temperature, including safety cover, platinum ring, planchet, sample platform, constant -temperature cup pad, escalator structure, touch display screen, micro printer, adjustable bolt seat, switch, power, circuit board, spirit level, solenoid and iron core, support steel wire, the displacement sensor that weighs, tip, lever, balancing weight, the safety cover is located circular track, and escalator is fixed with the sample platform on constructing, and the detected sample holds in the planchet, and planchet and sample platform be constant temperature in constant -temperature cup pad, and solenoid, the displacement sensor that weighs, USB interface, printer passing signal line and circuit board link to each other. This instrument portable safety cover of closing before the measurement makes the sample with external isolated, avoids the outside air interferometry that flows, and liquid outwards splashes when preventing that the film from breaking, and in addition, constant temperature equipment makes sample temperature control 25 1 DEG C at whole in -process, makes measuring result stable, and the measured data precision is high.

Description

A kind of constant temperature automatic tension analyzer

Technical field

The utility model is specifically related to a kind of constant temperature automatic tension analyzer, belongs to tension detection field.

Background technology

The around-France measurement interfacial tension of platinum is to immerse in the liquid that interfacial tension is higher by the platinum ring of a level, then slowly upwards promote platinum ring, interface is declined comparatively speaking and finally separate with platinum ring, the peak that this process records is interfacial tension value. It is that platinum plate is immersed in after fluid to be measured that platinum plate method is measured interfacial tension, and the surface tension of liquid can be by platinum plate as best one can toward drop-down. In the time that surface tension of liquid reaches balanced with other power, the highest equilibrium valve that the tension measuring device connecting with platinum plate records is surface tension value.

Publication number is CN202075199U, Granted publication day is on December 14th, 2011, name is called a kind of Chinese utility model patent of platinum ring method liquid surface/interface tension meter, disclose a kind of employing and carried out sample constant temperature with the glass thermostatic glass of water circulation, measuring process is simplified, the interface tension test instrument that measuring accuracy is high, the problem that this patent exists is to need the outer Water Tank with Temp.-controlled of joining, do not consider the impact that flow of external air is brought, cannot reach further detected value accuracy, in addition, this patent does not provide measured value data analysis function in the time repeatedly measuring same sample, need to manually compute arithmetic mean value and repeatability.

Utility model content

The purpose of this utility model is in order to overcome the deficiencies in the prior art, it is in order to overcome the deficiencies in the prior art that a kind of constant temperature automatic tension the purpose of this utility model is provided, a kind of automatic interface tension test instrument with constant temperature and protective cover is provided, this instrument removable protective cover to closed position before measurement makes sample test part and isolation, avoid the air interferometry of flows outside, reduce the rate temperature change of sample while measurement, while preventing film breaks, liquid outwards splashes, and, thermostat makes sample temperature be controlled at 25 ± 1 DEG C in whole process, improve certainty of measurement.

Above-mentioned object realizes by following technical scheme:

A kind of constant temperature automatic tension analyzer, described analyzer comprises: cabinet, protective cover, platinum ring, planchet, sample stage, thermostatic glass, automatic hoisting mechanism, touching display screen, mini-printer, adjustable bolt seat, switch, power supply, level meter, circuit board, solenoid, electromagnetic core, supporting steel wire, the bottom offset sensor of weighing, end, the top offset sensor of weighing, lever, moveable counter weight piece; Protective cover is located thereon in the circuit orbit of portion and bottom, in the bottom enclosure of described analyzer, be fixed with automatic hoisting mechanism, on automatic hoisting mechanism, be fixed with sample stage, sample stage minimum point is in thermostatic glass, planchet is placed on sample stage, solenoid is connected with circuit board by data wire with the bottom offset sensor of weighing, the top offset sensor of weighing, and circuit board connects power supply, switch and mini-printer, power supply connecting valve; Described analyzer further comprises platinum articulating plug-in unit, and the top of described platinum articulating plug-in unit is hung on the front end of described lever, and bottom is used for installing connection platinum ring.

For avoiding outer gas stream interferometry, reduce the rate temperature change of sample while measurement, while preventing film breaks, liquid outwards splashes, and can move protective cover 2 to rightmost closed position by handle 27, by airtight planchet 6 spaces, place.

For making to make sample temperature be controlled at 25 ± 1 DEG C in whole process, described thermostatic glass bottom is made up of temperature sensor, heating plate, cooling piece and radiator fan, circuit board is by temperature sensor detected temperatures and control heating plate, cooling piece and radiator fan work and make temperature be controlled at 25 ± 1 DEG C, thermostatic glass, automatic hoisting mechanism region separate by dividing plate and power supply etc. in addition, and both sides, thermostatic glass region and lower casing are provided with air grid and are convenient to heat radiation.

For make weigh scale more accurately, more accurate, can make lever end be positioned at suitable position range by adjusting moveable counter weight piece, the data variation that make to weigh top offset sensor and bottom offset sensor record is sensitiveer, more accurate.

In order to make, sample stage lifting is more steady, control is convenient, described automatic hoisting mechanism is made up of thread bush, lifting screw, fairlead, motor, sample stage and limit switch, when sample stage moves to upper limit position switch or lower position switch, limit switch disconnects electric moter voltage automatically, and sample stage is stopped.

Proofread and correct for the convenience of the user, in the menu of described a kind of constant temperature automatic tension analyzer, be provided with correction menu, user carries out instrumental correction so that measurement result is more accurate by the standard test weight of different brackets.

Analytic sample for the convenience of the user, described a kind of constant temperature automatic tension analyzer is connected with computer or flash disk by USB interface, and measurement data is derived with textual form.

Owing to having adopted above technical scheme, the utility model can improve the precision of interfacial tension measured value comprehensively, realize intelligent degree high, automatically calculate and preserve measured value, full automatic working, Chinese or English optional human-computer interaction interface, instrumental correction easily, there is higher promotional value.

Brief description of the drawings

Fig. 1 is the structural representation of the utility model constant temperature automatic tension analyzer.

Fig. 2 is the top cross-sectional view of protective cover of the present utility model.

Fig. 3 is the structural representation of facing of thermostatic glass of the present utility model.

Detailed description of the invention

Below in conjunction with drawings and Examples, the utility model is described in detail.

See Fig. 1, Fig. 2, Fig. 3, a kind of constant temperature automatic tension analyzer, primary structure has cabinet 1, protective cover 2, platinum ring 4, planchet 5, temperature sensor, sample stage 6, thermostatic glass 7, automatic hoisting mechanism 8, touching display screen 9, mini-printer 10, adjustable bolt seat 11, switch 12, power supply 13, level meter 14, circuit board 15, solenoid 16, electromagnetic core 17, supporting steel wire 18, the bottom offset sensor 19 of weighing, end 20, the top offset sensor 21 of weighing, lever 22, moveable counter weight piece 24; Protective cover 2 is located thereon in the circuit orbit of portion and bottom; in bottom enclosure, be fixed with automatic hoisting mechanism 8; on automatic hoisting mechanism 8, be fixed with sample stage 6; the initial minimum point of sample stage 6 is positioned at thermostatic glass 7; planchet 5 is placed on sample stage 6; sample is contained in planchet 5; solenoid 16 is connected with circuit board 15 by data wire with the bottom offset sensor 19 of weighing, the top offset sensor 21 of weighing; circuit board 15 is connected with power supply 13, switch 12 and mini-printer 10, and power supply 13 is connected with switch 12.

Protective cover 2, makes when measuring its inner side airtight, avoids the air interferometry of flows outside, reduces the rate temperature change of sample while measurement, and while preventing film breaks, liquid outwards splashes. Described protective cover is transparent or semitransparent cylindrical, need to close time, moves and makes its inner side airtight along circuit orbit.

Platinum articulating plug-in unit 3, top is hung on the front end of lever 22, and bottom is used for installing connection platinum ring 4.

Platinum ring 4, is that a girth of being made up of thin platinum filament is 40 or 60 millimeters of good annulus of circularity, and is welded on annulus with same thin platinum filament, and the diameter of the girth of annulus, the diameter of annulus and platinum filament diameter used is than known.

Planchet 5, for holding fluid to be measured.

Sample stage 6, is fixed on automatic hoisting mechanism 8 mobile putters, along with push rod moves up and down, for placing planchet 5.

Thermostatic glass 7, be fixed on automatic hoisting mechanism 8 upper housings, be made up of temperature sensor 28, heating plate 29, cooling piece 30 and radiator fan 31, circuit board 15 is by temperature sensor 28 detected temperatures and control heating plate 29, cooling piece 30 and radiator fan 31 work make temperature be controlled at 25 ± 1 DEG C.

Automatic hoisting mechanism 8, is fixed in described base plane, for fixed support sample stage 6.

Touching display screen 9, for showing man-machine dialog interface, returns to touch key-press information, data message to circuit board 15.

Mini-printer 10, for circuit board for receiving 15 type informations, prints metrical information.

Adjustable bolt seat 11, for regulating the level of described analyzer, by level meter 14 eye-level states.

Switch 12, has USB interface, for opening, close power supply and upper machine communication, the ROMPaq of described analyzer or measurement data being imported to flash disk.

Circuit board 15, be provided with single-chip microcomputer and control assembly, single-chip microcomputer has been implanted into software, circuit board 15 is controlled solenoid 16, automatic hoisting mechanism 8, touching display screen 9 and mini-printer 10, and circuit board 15 is measured the signal of telecommunication the computation and measurement result of weigh bottom offset sensor 19 and the top offset sensor 21 of weighing.

Solenoid 16, the electromagnetic field producing with change for the control signal of circuit board for receiving 15, the change of electromagnetic field affects the electromagnetic attraction that electromagnetic core 17 is subject to, thereby makes electromagnetic core 17 drive lever to do small moving up and down.

Measurement weigh bottom offset sensor 19 and the top offset sensor 21 of weighing, send to circuit board 15 for detection of the displacement of end 20 and by holding wire by measurement result.

Lever bracket 25, for bottom offset sensor 19 and the top offset sensor 21 of weighing of fixedly weighing, has between riser 23, two risers and is fixed with supporting steel wire 18 in lever bracket 25 both sides, middle part, and supporting steel wire 18 is supporting lever 22.

Lever spacing hole 26, for limiting the movement of lever 22, prevents that lever 22 movings range from crossing ambassador end 20, weigh bottom offset sensor 19 and the top offset sensor 21 of weighing suffer damage.

Handle 27, is positioned at cover body 28 right part centre positions, makes protective cover 2 move to closed or open position along circuit orbit by handle 27.

Operation principle of the present utility model is:

As Fig. 1, Fig. 2, shown in Fig. 3, first eye-level instrument 14 regulate adjustable bolt seat 11 to make instrument in level, clean platinum ring 4 is installed on platinum articulating plug-in unit 3, when enabling for the first time or changing environment for use and rework, should carry out weight correcting, the weight correcting button of point touching formula display screen 9, proofread and correct according to menu prompt, the principle of proofreading and correct is that circuit board 15 is controlled solenoid 16, make end 20 in certain equilbrium position, circuit board 15 reads the signal of weigh bottom offset sensor 19 and the top offset sensor 21 of weighing, record the gravimetric value recording and contrast to proofread and correct with the standard test weight weight of placing. the planchet 5 that is contained with testing liquid is placed on to sample stage 6 centers, move protective cover 2 to closed position by handle 27, the beginning testing button of point touching formula display screen 9, circuit board 15 is controlled automatic hoisting mechanism 8 and is moved up to upper limit, the annulus of platinum ring 4 is immersed in testing liquid, through quiet putting after a while, circuit board 15 is controlled automatic hoisting mechanism 8 and is slowly moved downward, platinum ring 4 is slowly moved up with respect to testing liquid until pull, platinum ring 4 is subject to the downward attraction of testing liquid molecule when through testing liquid interface, circuit board 15 detects the signal of weigh bottom offset sensor 19 and the top offset sensor 21 of weighing, record the gravimetric value recording and do data processing, calculate rupture of membranes value and tension value result, by measurement result storage and be presented on touching display screen 9, if user is set to automatic printing, circuit board 15 is controlled mini-printer 10 measurement result is printed. pull rear sample stage 6 and continue to move down until lower limit stops automatically, measurement completes.

In sum; the utility model provides a kind of constant temperature automatic tension analyzer; this instrument removable protective cover to closed position before measurement makes sample test part and isolation; avoid the air interferometry of flows outside; reduce the rate temperature change of sample while measurement; while preventing film breaks, liquid outwards splashes; in addition; in whole process, thermostatic glass makes temperature be controlled at 25 ± 1 DEG C; make to detect data stabilization, measure data precision is high, this instrument also have instrumental correction easily, data storage and check, the function such as mistake automatic diagnosis.

Obviously, those skilled in the art can carry out various changes and modification and not depart from spirit and scope of the present utility model the utility model. Like this, if to these amendments of the present utility model with within modification belongs to the scope of the utility model claim and equivalent technology thereof, the utility model is also intended to comprise these changes and modification interior.

Claims (9)

1. a constant temperature automatic tension analyzer, it is characterized in that, described analyzer comprises: cabinet, protective cover, platinum ring, planchet, sample stage, thermostatic glass, automatic hoisting mechanism, touching display screen, mini-printer, adjustable bolt seat, switch, power supply, level meter, circuit board, solenoid, electromagnetic core, supporting steel wire, the bottom offset sensor of weighing, end, the top offset sensor of weighing, lever, moveable counter weight piece; Protective cover is located thereon in the circuit orbit of portion and bottom, in the bottom enclosure of described analyzer, be fixed with automatic hoisting mechanism, on automatic hoisting mechanism, be fixed with sample stage, sample stage minimum point is in thermostatic glass, planchet is placed on sample stage, solenoid is connected with circuit board by data wire with the bottom offset sensor of weighing, the top offset sensor of weighing, and circuit board connects power supply, switch and mini-printer, power supply connecting valve; Described analyzer further comprises platinum articulating plug-in unit, and the top of described platinum articulating plug-in unit is hung on the front end of described lever, and bottom is used for installing connection platinum ring.

2. a kind of constant temperature automatic tension analyzer according to claim 1, is characterized in that, described protective cover is transparent or semitransparent cylindrical, need to close time, moves and makes its inner side airtight along circuit orbit.

3. a kind of constant temperature automatic tension analyzer according to claim 1, it is characterized in that, described thermostatic glass bottom is made up of temperature sensor, heating plate, cooling piece and radiator fan, and circuit board is by temperature sensor detected temperatures and control heating plate, cooling piece and radiator fan work and make temperature be controlled at 25 ± 1 DEG C.

4. a kind of constant temperature automatic tension analyzer according to claim 1, is characterized in that, described adjustable bolt seat regulates the level of described analyzer, by described level meter eye-level state.

5. a kind of constant temperature automatic tension analyzer according to claim 1, it is characterized in that, described automatic hoisting mechanism is made up of thread bush, lifting screw, fairlead, motor, platform and limit switch, when described sample stage moves to upper limit position switch or lower position switch, limit switch disconnects electric moter voltage automatically, and sample stage is stopped.

6. a kind of constant temperature automatic tension analyzer according to claim 1, it is characterized in that, described analyzer further comprises lever bracket, its fixedly weigh bottom offset sensor and the top offset sensor of weighing, there is riser in both sides, lever bracket middle part, between two risers, be fixed with described supporting steel wire, supporting steel wire is supporting described lever.

7. a kind of constant temperature automatic tension analyzer according to claim 1, is characterized in that, described lever bracket has lever spacing hole, for limiting the movement of lever.

8. a kind of constant temperature automatic tension analyzer according to claim 1, is characterized in that, on described circuit board, is provided with single-chip microcomputer, described single-chip microcomputer by switch with USB interface and upper machine communication, ROMPaq or measurement data is imported to flash disk.

9. a kind of constant temperature automatic tension analyzer according to claim 1, is characterized in that, described protective cover has handle, makes protective cover move to closed or open position along circuit orbit by handle.