CN202255529U

CN202255529U - Liquid volume measuring device

Info

Publication number: CN202255529U
Application number: CN2011203826462U
Authority: CN
Inventors: 王钺; 靳荣杰; 王昕�; 陈世辉
Original assignee: Beijing Huayang Limin Instrument Co ltd
Current assignee: Beijing Huayang Limin Instrument Co ltd
Priority date: 2011-10-10
Filing date: 2011-10-10
Publication date: 2012-05-30
Anticipated expiration: 2021-10-10

Abstract

The utility model discloses a liquid volume measuring device, including measuring the container, with measure container in close contact with's electrode, with volume sensor and the liquid volume conversion module that the electrode connected gradually, liquid volume conversion module can be the singlechip, still including being used for holding the year measure the container measure the passageway with locate measure the spring clamping device in the passageway, spring clamping device includes interconnect's spring and spring block, measure the container for measuring the test tube. The volume sensor can transmit a signal to a liquid volume conversion module such as a singlechip through the electrical properties of a metal sheet electrode in the measuring channel or a coating electrode in the measuring test tube, and the volume of the liquid in the test tube can be known after the processing of the singlechip. Obviously, adopt the utility model discloses measure convenient, high-efficient, the swift of volume of liquid.

Description

A kind of liquid volume measurement device

Technical field

The utility model relates to a kind of measurement mechanism, particularly relates to a kind of liquid volume measurement device.

Background technology

Along with the continuous development of chemical analysis technology, all trades and professions require increasingly high to the degree of accuracy of liquid volume measurement.At present, though can measure the volume of liquid through surveying instruments such as graduated cylinder, transfer pipet, syringe pump, ultrasonic liquid level measuring appearance, the degree of accuracy that has in these methods is not high.In addition, there is the similar compatibility characteristic between characteristic, solvent and the container, makes the degree of accuracy of measuring further reduce because liquid exists to expand with heat and contract with cold.The most important thing is that above traditional measurement instrument can't accurately immediately be measured the dynamic liquid volume.

Summary of the invention

The utility model technical matters to be solved is that a kind of accurate, convenient and practical a kind of liquid volume measurement device of measuring is provided.

For solving above technical matters; The technical scheme of the utility model is: a kind of liquid volume measurement device; Comprise measuring vessel, with the tight electrodes in contact of said measuring vessel, with volume sensor and liquid volume conversion module that said electrode is connected successively, said liquid volume conversion module can be single-chip microcomputer.

As the improvement of the utility model, comprise also being used to hold measurement passage that carries said measuring vessel and the fixture of the spring of being located in the said measurement passage that said fixture of the spring comprises interconnective spring and spring block.In addition, also comprise bonnet, said bonnet props up said spring.

Further improve as the utility model, also comprise interconnective temperature sensor and thermostat.Wherein, said measuring vessel is for measuring test tube, and said electrode is sheet metal electrode or electrode coating.

Preferred version as the utility model: said sheet metal electrode is arranged at the outer wall of said measurement test tube, and said electrode coating then is coated on the inwall of said measurement test tube, and said sheet metal electrode is with half the or whole parcels of said measurement test tube outer wall.

Through implement the utility model desirable following beneficial technical effects: the utility model comprises electrode, and electrode links to each other with volume sensor.Measuring test tube with one tightly is stuck in the measurement passage; In vitro inject certain amount of fluid in said measurement then; Said volume sensor can be through sheet metal electrode in the said measurement passage or the signal of electrical properties transmission that measure coated electrode in vitro to liquid volume conversion module single-chip microcomputer for example, can learn the volume size of liquid in vitro after handling through single-chip microcomputer.

In the measurement passage that temperature sensor will record be said measurement in vitro the temperature data of liquid pass to thermostat, thermostat will transmit the temperature data that comes and design temperature relatively the back still be to lower the temperature to confirm to heat up.Can reach the purpose of measuring the interior temperature constant of passage (measuring liquid in vitro) through such control mode, thereby reduce the liquid influence of characteristic of expanding with heat and contract with cold to greatest extent its cubing degree of accuracy.

Said fixture of the spring comprises interconnective spring and spring block, and said spring block can be fixed in the TCH test channel measuring test tube firmly, rocks measurement is exerted an influence to avoid measuring test tube, thereby improve the degree of accuracy of measuring.This spring block can also be attached on the metal electrode measuring test tube tightly, so that metal electrode can more accurately and timely obtain the liquid level data of testing liquid, thereby realizes the kinetic measurement to liquid volume.

Said measurement test tube not only can separate testing liquid and metal electrode, stops the liquid phase patibhaga-nimitta and dissolves characteristic to measuring accurate influence, can also avoid getting into the influence of measuring in vitro measuring accuracy because of impurity.

The sheet metal electrode is with half the or whole parcels of said measurement test tube outer wall, and the utility model can satisfy basic need to the measurement requirement of liquid volume when carrying out half parcel, and the cubing accuracy further improves when all wrapping up.When electrode coating then being coated on the inwall of said measurement test tube, can obtain maximum precision of measurement.

Obviously, through implementing the degree of accuracy that the utility model can improve liquid volume measurement greatly, can also realize kinetic measurement to liquid volume.

Description of drawings

Below in conjunction with Figure of description the utility model is done further detailed explanation, wherein:

Fig. 1 is that the circuit of the utility model connects synoptic diagram;

Fig. 2 is the three-dimensional structure diagram of the utility model;

Fig. 3 is the vertical view of the utility model;

Fig. 4 is the longitudinal sectional drawing of an embodiment of the utility model;

Fig. 5 is that the utility model electrode partly wraps up synoptic diagram;

Fig. 6 is that the utility model electrode wraps up synoptic diagram entirely;

Fig. 7 is that the utility model electrode is located at measuring vessel outer wall construction synoptic diagram;

Fig. 8 is that the utility model electrode is located at measuring vessel interior wall construction synoptic diagram.

Embodiment

As shown in Figure 1, Fig. 1 is that the circuit of the utility model connects synoptic diagram.Wherein, the code name of each parts is following: a, signal source generator, b, attenuator, c, interior inclined to one side power supply, d, power supply; E, liquid measure checkout equipment connect measures test tube, f, current sampling circuit, and g, electric current amplify h, voltage amplification, i, microcomputer and control; J, switch, k, gain control, l, phase demodulation, m, analog digital A/D conversion, n, keyboard; O, display device, p, thermostatically-controlled equipment, 1, the sheet metal electrode, 7, measuring vessel.Said power supply is each power consumption unit power supply.

As shown in Figure 2, a kind of liquid volume measurement device is provided with and measures passage 2, and the side of said measurement passage 2 is provided with electrode 1, and this electrode 1 is the sheet metal electrode, is wrapped on half sidewall of said measurement passage 2.Its plan structure is as shown in Figure 5.Certainly, said electrode 1 also can be wrapped on whole sidewalls of said measurement passage 2, and plan structure figure is as shown in Figure 6.Outer side edges at the utility model device is provided with bonnet 3.

As shown in Figure 4, the utility model comprises measuring vessel 7, the volume sensor that is connected successively with said measuring vessel 7 tight electrodes in contact 1, with said electrode 1 and liquid volume conversion module, and the latter two are not shown.Be provided with fixture of the spring in the said measurement passage 2, said fixture of the spring comprises interconnective spring 4 and spring block 8, and the plan structure figure of said spring block 8 is as shown in Figure 3.Said bonnet 3 props up said spring 4.Also be provided with interconnective temperature sensor 6 and thermostat 5 in the said measurement passage 2.

Its concrete programme of work is following: measure the measurement passage 2 that test tube 7 is put into the utility model, the spring 4 that is positioned at bonnet 3 blocks said measurement test tube 7 automatically with spring block 8, makes itself and electrode 1 tightly stick together.When measuring, temperature sensor 6 is started working simultaneously, and control thermostat 5 guarantees to measure the temperature constant temperature in the passage.

Said electrode 1 is sheet metal electrode or electrode coating, and said electrode 1 can be wrapped in the lateral wall of said measurement test tube 7, and is as shown in Figure 7; Also can be coated on the inwall of said measurement test tube 7, as shown in Figure 8.

Must be pointed out that some indefinitenesses that the foregoing description is just made the utility model illustrate.But person of skill in the art will appreciate that under aim that does not depart from the utility model and scope, can make modification, replacement and change to the utility model, these revise, replace and change the protection domain that still belongs to the utility model.

Claims

1. A liquid volume measuring device, characterized by: comprising a measuring container (7), an electrode (1) in close contact with the measuring container (7), a volume sensor connected to the electrode (1) in sequence, and a liquid Volume conversion module.

2. The liquid volume measuring device according to claim 1, characterized by further comprising a measuring channel (2) for containing the measuring container (7).

3. A liquid volume measuring device according to claim 2, characterized in that it further comprises a spring clamping device arranged in the measuring channel (2).

4. The liquid volume measuring device according to claim 3, characterized in that: the spring clamping device comprises a spring (4) and a spring block (8) connected to each other.

5. The liquid volume measuring device according to claim 4, characterized by further comprising a back cover (3), the back cover (3) resisting the spring (4).

6. A liquid volume measuring device according to claim 2, characterized in that it further comprises a temperature sensor (6) and a constant temperature device (5) connected to each other.

7. A liquid volume measuring device according to any one of claims 1 to 6, characterized in that: the measuring container (7) is a measuring test tube.

8. A liquid volume measuring device according to claim 7, characterized in that: the electrode (1) is a metal sheet electrode arranged on the outer wall of the measuring test tube or coated on the inner or outer wall of the measuring test tube electrode coating.

9. A liquid volume measuring device according to claim 8, characterized in that: said metal sheet electrode wraps half or all of the outer wall of said measuring test tube.

10. A liquid volume measuring device according to any one of claims 1 to 6, characterized in that: the liquid volume conversion module is a single-chip microcomputer.