CN2708308Y

CN2708308Y - Device for testing skin moisture

Info

Publication number: CN2708308Y
Application number: CN 03242760
Authority: CN
Inventors: 高汉钦
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-03-28
Filing date: 2003-03-28
Publication date: 2005-07-06
Anticipated expiration: 2013-03-28

Abstract

The utility model relates to a device for testing skin moisture, which comprises a shell and a fixing base, wherein, the fixing base is arranged at the front end of the shell, at least one through hole is arranged on the fixing base, and a hollow metal cylindrical electrode of which one end is enclosed is sheathed on the through hole. An electric-conductive elastic member pressed in the electrode is contained in the electrode, one end of the elastic member is fixed in the shell, and a correcting resistor connected with the elastic member in parallel is arranged in the shell. The correcting resistor is connected with a micro A. C. generator and an AC resistance testing circuit, the micro A. C. generator is connected with a CPU single-chip microprocessor, and the microprocessor is connected with a displaying member. In testing, the electrode is pressed and supported on the skin of tester, the micro alternating current of the electrode flows through the skin to obtain a resistance value which can be compared with pre-stored data through the microprocessor and a memorizer, and the comparing result can be displayed through the displaying member. When the electrode is pressed and supported on the skin and moved inward, the movement distance is limited through the limitation of the fixing base. If the pressure forces applied on the skin are identical, the testing results are identical.

Description

The device of test moisture of skin

Technical field

The utility model relates to a kind of device of testing moisture of skin.

Background technology

The instrument of general known test moisture of skin please refer to shown in Figure 1ly, and this instrument is a kind of portable body 100, and these body 100 front ends convex with a ceramic resonance assembly 110, and these body 100 surfaces are provided with a LCDs 120; In addition, be provided with a test circuit in this body 100, this test circuit also is connected with ceramic resonance assembly 110 and LCDs 120, this kind device is when doing test, be skin by ceramic resonance assembly 110 contact measured examination, again by the difference that can change resonant frequency behind the ceramic resonance assembly 110 contact skins, measured difference is conducted on the test circuit, after processing of circuit is calculated after tested, can calculate skin contained humidity ratio to be tested, result of calculation with gained is shown on the LCDs 120 again, make person to be tested can learn test result, but because of the manufacturing cost of ceramic resonance assembly 110 itself than general test assembly height, the employed ceramic resonance assembly 110 of this kind instrument needs again order work with indivedual needs still more, required cost improves especially relatively.

Summary of the invention

Creator of the present utility model, takes up to be sought to improve therefore at its very crux in view of the shortcoming of commonly using structure, mending it lacks, in the hope of seeking a method that rationally solves, analyse, design through grinding many times, finish the device of test moisture of skin of the present utility model finally.

Technical problem to be solved in the utility model is, at the above-mentioned deficiency of prior art, and provides a kind of with low cost, device that moisture of skin is tested in test accurately.

Above-mentioned technical matters of the present utility model is realized by following technical scheme.

A kind of device of testing moisture of skin includes:

One housing is provided with the CPU chip microprocessor in this housing, this CPU chip microprocessor is measured circuit with little alternating current generator and AC resistance respectively and is connected with storer, display part; It is characterized in that:

One holder, it is arranged on the housing front end, this holder is provided with at least one perforation, be coated with the electrode of tool electric conductivity in this perforation, the not protruding end that is exposed to holder of this electrode presses flexible, this elastic component other end then is fixed on the housing, and this electrode and proofread and correct resistance by parallel way and and be connected;

The composition of the above-mentioned member of mat, during the order test, electrode can be pressed on tester's the skin, make test result conduct to the CPU chip microprocessor by electrode, and after the data that CPU chip microprocessor and storer prestore compares, can the result be shown by display part, and when electrode is pressed against on the skin and forces on the elastic component, can be by the restriction of holder, the distance that electrode is moved at every turn is all identical, and the pressure that elastic component is put on the electrode is identical, and then makes electrode also apply uniform pressure on skin, and under equivalent environment, obtain identical test result.

Except that above-mentioned essential features, in specific implementation process, also can replenish following technology contents:

This elastic component is the spring of tool electric conductivity.

This display part is a LCDs.

Advantage of the present utility model is:

1, the device of test moisture of skin of the present utility model is provided with a housing, this housing front end is provided with a holder, this holder is provided with at least one perforation, be coated with the electrode of the hollow metal cylinder of end sealing in this perforation, be equipped with the elastic component of a tool electric conductivity in this electrode, and this elastic component is pressed against in this electrode, again, this elastic component other end then is fixed in the housing and measures circuit with a little alternating current generator and AC resistance and is connected, in addition, be provided with the CPU chip microprocessor that is connected with elastic component in this housing, this CPU chip microprocessor respectively with storer, display part is connected, during with the order test, electrode can be pressed on tester's the skin, make little alternating current of electrode record a resistance value through skin, and conduct to the CPU chip microprocessor by electrode, and after the data that CPU chip microprocessor and storer prestore compares, can the result be shown by display part, and when electrode is pressed against on the skin and forces on the elastic component, can be by the restriction of holder, the distance that electrode is moved at every turn is all identical, the pressure that elastic component is put on the electrode is identical, and then make electrode also apply uniform pressure on skin, and under equivalent environment, obtain identical test result, because of the utility model is to test by electrode, so with low cost far beyond known instrument.

2, the device of the test moisture of skin that provides of the utility model, be provided with a power supply in its housing, this power supply can be supplied interior each assembly of housing and remake power supply required when moving, and this power supply is also measured circuit by circuit and little alternating current generator and AC resistance and is connected with elastic component, to make before doing test, can flow through the resistance value that the correction resistance in parallel with electrode is produced by little alternating current, confirm whether actuator state of the present utility model normally reaches the test basic value of revising database, test again, to avoid the generation of error.

For enabling to the purpose of this utility model, shape constructing apparatus feature and effect thereof, make further understanding and understanding, for the embodiment conjunction with figs., be described in detail as follows now:

Description of drawings

Fig. 1 is the schematic perspective view of conventional devices.

Fig. 2 is installed on the perspective exploded view of an embodiment on the housing for the utility model electrode.

Fig. 3 is installed on the schematic perspective view of an embodiment on the housing for the utility model electrode.

Fig. 4 is installed on the sectional schematic diagram of an embodiment on the housing for the utility model electrode.

Fig. 5 is installed on the perspective exploded view of another embodiment on the housing for the utility model electrode.

Fig. 6 is a circuit box synoptic diagram of the present utility model.

Fig. 7 is pressed against synoptic diagram on the skin for the utility model electrode.

Embodiment

See also Fig. 2,3,4,5, shown in 6, the utility model is a kind of device of testing moisture of skin, this device is provided with a housing 10 (as shown in Figure 4), this housing 10 is provided with a base plate 11, these base plate 11 front ends are provided with a holder 12, in present embodiment is a block, this holder 12 is provided with at least one perforation 121, in present embodiment be 2 or 3 (as Fig. 2, shown in 5), be coated with respectively in this perforation 121 end be closed and in be the electrode 20 of the tool electric conductivity cylinder of hollow form, these electrodes 20 are equipped with the elastic component 21 of a tool electric conductivity respectively, and these elastic component 21 other ends are also measured circuit 32 (as shown in Figure 6) and be separately fixed on the base plate 11 mutually in succession with a little alternating current generator and AC resistance, in addition, these electrodes 20 are provided with outward extending flange 22 at the open end ora terminalis, and the area of this flange 22 is greater than perforation 121 area, so that electrode 20 is when being set in the perforation 121, can lean on unlikely disengaging holder 12 by the retaining of flange 22.

Moreover, please refer to Fig. 4, shown in 6, be provided with a power supply 13 in this housing 10, in present embodiment is battery, this power supply 13 is also measured circuit 32 by little alternating current generator and AC resistance and is converted a little alternating current to, and this little alternating current also is connected with elastic component 21 by circuit, again, this little alternating current generator and AC resistance are measured on circuit 32 and the circuit that elastic component 21 joins and are equipped with a correction resistance 31 (as shown in Figure 6) in parallel, again, this little alternating current generator and AC resistance are measured circuit 32 and a CPU chip microprocessor 33 is connected, this CPU chip microprocessor 33 is connected with button 35 with storer 34 and the protruding display part 36 that is exposed to housing 10 outsides respectively, wherein, storer 34 stores through the staqtistical data base behind the experiment test, and display part 36 is a LCDs in present embodiment, and in addition, 35 of buttons are the replacings that is used for controlling the start pattern.

During test, please refer to Fig. 2,3,4,5,6, shown in 7, can push button 36 earlier, after making the utility model begin start, contact measured is not tried skin earlier, making power supply 13 convert a little alternating current to flows into electrode 20 and proofreaies and correct resistance 31, and by the resulting resistance value of display part 36 demonstrations, with the fair copy utility model because of voltage, the factor that ambient temperature or the like is variable, the difference that is caused, after calibrated, because of principle of work of the present utility model is that human body skin is by moisture, grease and other colloid (being a kind of of protein) combine, and wherein moisture electric conductivity is higher, and other is more non-conductive as grease, the composition of cell is the inside and outside cell liquid of cell in addition, the equal easy conductive of lymph liquid, and cell membrane is non-conductive, thereby form a capacitance structure.In addition, skin surface adds that the bipolar electrode of a fixation pressure or multi-electrode measure its ac conduction impedance operator, can be measured to the content of its moisture, therefore, when being pressed against electrode 20 on the skin to be tested, this skin to be tested promptly can be according to above-mentioned principle of work, test result is conducted on the correction resistance 31 by electrode 20, and measure circuit 32 by little alternating current generator and AC resistance and measure resistance value, be resent on the CPU chip microprocessor 33, this CPU chip microprocessor 32 promptly can take out the data that stores to storer 34 and be compared, and comparison result is sent to display part 36 shows, so, can learn the moisture that skin to be tested is contained.

And in test process, keep an objective electric capacity because of must be noted that, and keep an objective capacitive conditions as follows:

1, imposes on the pressure of skin

2, the size of electrode

3, the characteristic of skin and deciding

The electrode size of above condition is easily by adjusting, and set up is a fixed size, so test the moisture of skin, promptly be how to control the pressure unanimity that imposes on skin, therefore, when electrode 20 is pressed against on the skin and forces on the elastic component 21, can make electrode 20 each distances that move all identical by the restriction of holder 12, the pressure that elastic component 21 is put on the electrode 20 be identical, and then make electrode 20 also apply uniform pressure on skin, and make the utility model under equivalent environment, can obtain identical test result, moreover, because of the utility model is to test by electrode 20, so with low cost far beyond known instrument.

In sum, the utility model belongs at first utility model on the contoured article constructing apparatus, and can improve the various shortcomings of located by prior art, and have environmental protection and utilization once more, and truly have the enhancement effect in the use, close in practicality, filling part and meet novel patent requirement, is a desirable utility model in fact.

Claims

1, a kind of device of testing moisture of skin includes:

2, the device of test moisture of skin according to claim 1 is characterized in that: this elastic component is the spring of tool electric conductivity.

3, the device of test moisture of skin according to claim 1 is characterized in that: this display part is a LCDs.