CN2120549U

CN2120549U - Skin performance testing instrument

Info

Publication number: CN2120549U
Application number: CN 92209722
Authority: CN
Inventors: 刘铁斌; 阴天晓; 沈聪聪; 顾庚祖
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-05-19
Filing date: 1992-05-19
Publication date: 1992-11-04

Abstract

The utility model relates to a skin performance testing instrument of which the testing head (1) is a skin performance sensor composed of a plurality of resistors (R1, R, r1 and r). The variation of the dryness and the humidity of the skin forms a linear relation with the variation of the reading. A shield wire (4) is connected with the input end of an A/D changeover circuit (3) in a casing (2), and the output end of the A/D changeover circuit (3) is connected with a display (5). The utility model is used for the purposes, such as beauty treatment, health care, etc.

Description

Skin performance testing instrument

This utility model relates to the battery powered safety human-body biological parameter measuring apparatus that aesthetic health care is used, and especially relates to the safety instrumentation of skin performance (doing moist).

In daily, the utmost point need be known skin type or the performance of oneself when people bought cosmetics, promptly belonged to dryness, neutral or oil (wetting) property, had occurred being used for the instrument of skin test thus.The skin test equipment of prior art is with ultraviolet radiation people face, by people's face the reflection of light situation is judged the dried moist of face.This apparatus structure complexity, volume is big and cost is high; Also need the professional to analyze just in use and can obtain test result; Moreover utilize luminous reflectance, because the influence of skin smoothness makes the accuracy of measurement step-down.

Therefore the purpose of this utility model is to propose that a kind of structure is simple relatively, the volume I is carried and cost is low, and but the direct observation test result is not subjected to the skin smooth degree to influence high accuracy skin ability meter safe in utilization, and it also has to hold concurrently and surveys the function of human acupoint simultaneously.

Above-mentioned purpose of the present utility model is achieved like this: this skin ability meter is made up of casing, gage outfit and display part, it is characterized in that: this gage outfit is a skin performance sensors of being made up of a plurality of resistance, it can make the skin performance, and promptly the variation of the variation of humidity and reading is linear; This pick off utilizes the input of an A/D change-over circuit in shielding line and the casing to be connected, and the outfan of this A/D change-over circuit is connected with character display on the casing, and this circuit is by the battery powered that is contained in the casing.

Below in conjunction with embodiment shown in the drawings this utility model is further described, so that the easier quilt of the purpose of this utility model, feature, performance and advantage is understood.Parts identical in each accompanying drawing use identical label.

Fig. 1: according to the overall perspective of the skin ability meter of this utility model first embodiment;

Fig. 2: the circuit structure diagram of the foregoing description;

Fig. 3 a) and b): the circuit structure of gage outfit and performance map in the foregoing description;

Fig. 4 a) and b): two kinds of above-mentioned gage outfit isomorphism types not;

Fig. 5: according to the small-sized lip pencil skin ability meter of this utility model second embodiment.

With reference to Fig. 1, it is a kind of desk-top skin ability meter, is this utility model first embodiment.Circuit board 3 wherein is housed in housing 2, and gage outfit 1 is connected with circuit board 3 by shielding line 4, and the outfan of this circuit board 3 is connected with character display 5, and circuit part is by 6 power supplies of the battery in the casing 2.In addition, display lamp 7 and on and off switch 8 also are housed on the panel.

Fig. 2 is the circuit block diagram of this utility model the foregoing description, when acting on human body skin as the pick off of gage outfit 1, just convert the skin performance to electrical quantity, this electrical quantity passes to circuit board 3 through shielding line 4, this circuit board 3 is A/D change-over circuits, for example be that a model is ICL7107(or 7106 or 7129) analog to digital conversion circuit of CPL or the analog to digital conversion circuit of other model, the digital signal of these A/D change-over circuit 3 outputs is sent to character display 5, for example be fluorescent character-display tube or crystal digital coding on the display, show measurement result by it, also be connected with battery 6 among the figure, switch 8 and display lamp 7 for example are light emitting diodes.

Fig. 3 (a) is the circuit structure diagram as the gage outfit of one of this utility model principal character, it is by resistance R 1, R, r1, r forms, wherein resistance R 1R is in series, r1r is in series, one end of resistance R 1 is connected with the end of an end of resistance R and resistance r1, another termination V+ of resistance R 1, the other end ground connection of resistance R, the other end of resistance r1 is connected with the end of resistance r and receives on the input INHI of A/D change-over circuit of circuit board 3, the other end of r is received on the ferrule a of this gage outfit, the metal tube b ground connection of this gage outfit (see Fig. 4 (a) or 4(b)).Hand-held metal tube b part during test with ferrule a contact face, promptly constitutes one and measures the loop.Available Fig. 3 of the effect of this circuit (b) explains, because of the variation of human body skin humidity is not linear with the resistance variations that directly records, the resistance value scope that for example oily (wetting) property skin directly records is between 0-1M Ω, the resistance value scope of neutral skin is between 1-10M Ω, the resistance value scope of dry skin is between 10M Ω-50M Ω, its change curve is shown in solid line 1 among Fig. 3 (b), it is nonlinear change, in order to make measurement result be easy to read, adopted foregoing circuit, just made the variation of skin humidity and the resistance change after the conversion linear, made the demonstration linearisation of skin performance thus, when for example adopting one to show, " 1-3 " is oil (wetting) property, and " 4-6 " is neutral, and " 7-9 " is dryness, when reading shows " 0 ", be the acupuncture point.

Fig. 4 (a) and 4(b) two kinds of gage outfits of isomorphism type not of expression, its structure is similar substantially, and different is exactly its head construction, and one is pencil point-shaped (Fig. 4 (a)), and another is " ⊙ " shape (Fig. 4 (b).C is a felt pad among the figure, and 9 is installation diagram 3(a) in the circuit board of circuit, 4 is shielding line.Wherein the gage outfit among Fig. 4 (b) has the shape of High-frequency plug, and promptly " ⊙ " shape shield effectiveness is good, makes signal avoid extraneous interference, and forms a measurement zone naturally when surveying face, prevents the influence of human body institute static electrification to accuracy of measurement; And the pencil point-shaped head among Fig. 4 (a) is applicable to that measuring the acupuncture point uses.

Fig. 5 is another embodiment of the present utility model, it is the skin ability meter of a miniaturization, or claim skin performance test pen, and it is equipped with circuit board 39 in Can 22, and this circuit board 39 comprises whole circuit of circuit board 3 and 9, its input adapter is a ' and pipe b ', its output connect liquid crystal display 5 ', circuit part is by button cell 6 ' power supply, wherein 8 ' be on and off switch, 23 is bonnet, and 24 is battery spring.

Be noted that in this utility model design scope and can also make multiple modification, for example can use the regulated power supply power supply that has transformator; The figure place of charactron also can change in multidigit at one in addition; Even skin ability meter of the present utility model also can combine with other device and become multi-function device, for example can combine the additional demonstration time etc. with device such as digital clock.

The advantage that the present invention has is: simple in structure, volume is little, and cost is low, and accuracy of measurement height and measuring speed are fast, not only can measure the dried moist of human body skin, also can measure Local position can be accurate to the scope of 1mm to the measurement at acupuncture point, and the reading linearity, and antijamming capability is strong. Be fit to the extensive use in cosmetology and health and relevant field thereof. In addition, this skin performance testing instrument can also be applied to test the effect that cosmetics act on skin, and can also test the Leather Properties in the leather manufacture process.

Anyly can measure voluntarily per capita, need not the professional and carry out analysis integrated to measurement result.

Claims

1, skin ability meter, form by casing, gage outfit and display part, it is characterized in that: the skin performance sensors that gage outfit (1) is made up of a plurality of resistance (R1, R, r1, r), it makes the variation of the variation of skin humidity and reading linear, and gage outfit (1) directly or utilize shielding line (4) to be connected with a circuit board (3) in the casing (2), this circuit board (3) is the A/D change-over circuit, its output is connected with character display (5) on the casing (2), and this circuit part is by battery (6) power supply that is contained in the casing (2).

2, skin ability meter according to claim 1, it is characterized in that: described gage outfit (1) is by four resistance (R1, R, r1, r) form, wherein an end of first resistance (R1) is connected with an end of second resistance (R) and an end of the 3rd resistance (r1), (R1) another termination power positive end (V+), (R) other end ground connection, (r1) the other end is connected with an end of the 4th resistance (r) and receives on the input (INHI) of A/D change-over circuit of circuit board (3), one of the 4th resistance terminates on the ferrule (a) of this gage outfit, the metal tube of this gage outfit (b) ground connection wherein separates with felt pad (c) between ferrule (a) and the metal tube (b).

3, according to the skin ability meter of claim 1, it is characterized in that: also be provided with on and off switch (8) and display lamp (7) on its casing (2).

4, according to the skin ability meter of claim 1, it is characterized in that: wherein the A/D converter as circuit board (3) can be that model is ICL7107(7106,7129) analog-digital converter of CPL or the analog-digital converter of other model.

5, according to the skin ability meter of claim 1, it is characterized in that: wherein display (5) can be fluorescent character-display tube or crystal digital coding on the display, and the demonstration position can be adopted one or more.

6, according to the skin ability meter of claim 1, it is characterized in that: its head of gage outfit wherein (1) can adopt different structures, and its structure can be pencil point-shaped or is i.e. " ⊙ " shape of High-frequency plug shape.

7, according to the skin ability meter of claim 1, it is characterized in that: this tester can make lip pencil, and circuit board wherein (39) comprises the circuit and the A/D change-over circuit (3) of described gage outfit (1).

8, according to the skin ability meter of claim 1 or 7, it is characterized in that: this skin ability meter also can be used for measuring the acupuncture point.

9, according to the skin ability meter of claim 1, it is characterized in that: this tester also can use the regulated power supply that has transformator or use the rechargeable type power supply to replace battery (6) power supply.

10, according to the skin ability meter of claim 1 or 7, it is characterized in that: described skin ability meter can also be applied to test the effect that cosmetics act on skin, and can also measure the leather performance in the leather manufacture process.