Multifunctional skin measuring instrument

Abstract

The invention discloses a multifunctional skin measuring instrument which comprises an instrument body and a control circuit, two telescopic connecting holes are formed in the detection end of the instrument body, telescopic sliding grooves are formed in the bottoms of the telescopic connecting holes, sliding blocks are installed in the telescopic sliding grooves, and metal rods extending out of the telescopic connecting holes are fixed to the sliding blocks. A pressure sensor is fixed to the bottom of the telescopic sliding groove, a telescopic spring is installed in the telescopic sliding groove and arranged between the sliding block and the pressure sensor, and the metal rod and the pressure sensor are electrically connected with a control circuit. The skin moisture loss, the surface temperature of the skin, the moisture content of the skin and the elasticity of the skin can be measured by one measuring instrument, and the measuring instrument is very convenient.

Description

Technical Field

[0001] The invention belongs to the technical field of skin measurement, and in particular relates to a multifunctional skin measuring instrument. Background Art

[0002] As people's living standards improve, they will pay more attention to their skin condition.

[0003] Publication No. CN117045207B discloses a pressure detection structure, a skin moisture detector and a detection method thereof, which can be used to detect skin moisture. However, the existing instrument only has one moisture detection function, which is relatively simple. Summary of the Invention

[0004] The object of the present invention is to provide a multifunctional skin measuring instrument, which can realize multiple functions.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a multifunctional skin measurement instrument, comprising an instrument body and a control circuit, wherein a detection end of the instrument body is provided with two telescopic connection holes, the bottom of the telescopic connection holes is provided with a telescopic slide, a slider is mounted in the telescopic slide, a metal rod is fixed to the slider, and extends out of the telescopic connection hole, a pressure sensor is fixed to the bottom of the telescopic slide, a telescopic spring is mounted in the telescopic slide, the telescopic spring is arranged between the slider and the pressure sensor, and the metal rod and the pressure sensor are electrically connected to the control circuit.

[0006] Furthermore, the detection end of the instrument body is further provided with a water loss measurement cavity, in which a temperature sensor and a humidity sensor are fixed, and the temperature sensor and the humidity sensor are electrically connected to the control circuit.

[0007] Furthermore, the telescopic connection holes are located on both sides of the water loss measurement cavity.

[0008] Compared with the prior art, the present invention has the following beneficial effects: (1) One measuring instrument can measure skin water loss, skin surface temperature, skin moisture content and skin elasticity, which is very convenient; (2) The metal rod can be used to measure skin elasticity and moisture content, which can be used to detect two skin problems; (3) The telescopic connection holes are located on both sides of the water loss measurement cavity. This arrangement can make full use of the space at the detection end. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic structural diagram of the multifunctional skin measuring instrument of the present invention; Figure 2 for Figure 1 sectional view of .

[0010] In the figure: 1. Instrument body; 2. Control circuit; 3. Telescopic connection hole; 4. Telescopic slide; 5. Slider; 6. Metal rod; 7. Pressure sensor; 8. Telescopic spring; 9. Water loss measurement chamber; 10. Temperature sensor; 11. Humidity sensor; 12. Detection end. DETAILED DESCRIPTION

[0011] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0012] See also Figure 1-Figure 2 The present invention provides a technical solution for a multifunctional skin measuring instrument.

[0013] A multifunctional skin measuring instrument includes an instrument body 1 and a control circuit 2. The detection end 12 of the instrument body 1 is provided with two telescopic connection holes 3. The bottom of the telescopic connection hole 3 is provided with a telescopic slide 4. A slider 5 is installed in the telescopic slide 4. The slider 5 can move in the telescopic slide 4. A metal rod 6 extending from the telescopic connection hole 3 is fixed to the slider 5. A pressure sensor 7 is fixed to the bottom of the telescopic slide 4. A telescopic spring 8 is installed in the telescopic slide 4. The telescopic spring 8 is arranged between the slider 5 and the pressure sensor 7. The metal rod 6 and the pressure sensor 7 are electrically connected to the control circuit 2.

[0014] When measurement is required, the metal rod 6 contacts the skin, and then the metal rod 6 is gradually pushed into the telescopic connecting hole 3. At this time, the slider 5 moves toward the telescopic spring 8, thereby applying pressure to the pressure sensor 7 until the detection end 12 contacts the skin. The greater the elasticity of the skin, the greater the pressure of the telescopic spring 8, and the greater the pressure on the pressure sensor 7, and vice versa.

[0015] Skin moisture content is measured using reactance, a method used by metal rods 6 and control circuit 2. The microprocessor, through control circuit 2, applies a modulated voltage of a certain frequency to the two metal rods 6. The reactance is then measured to calculate the skin's moisture content. Lower skin reactance indicates higher skin moisture content, and vice versa.

[0016] The metal rod 6 can be used to measure skin elasticity and moisture content, and can be used to detect two skin problems.

[0017] The detection end 12 of the instrument body 1 is further provided with a moisture loss measurement cavity 9 , in which a temperature sensor 10 and a humidity sensor 11 are fixed. The temperature sensor 10 and the humidity sensor 11 are electrically connected to the control circuit 2 .

[0018] The detection end 12 contacts the skin being tested, and the moisture lost from the skin enters the moisture loss measurement cavity 9, which increases the temperature and humidity in the measurement cavity. The temperature sensor 10 and the humidity sensor 11 detect the change in humidity over time, and the moisture loss of the skin can be calculated.

[0019] When the skin comes into contact with the detection end 12, the temperature in the water loss measurement cavity 9 will also increase. By detecting the change in temperature over time through the temperature sensor 10 and the humidity sensor 11, we can also calculate the surface temperature of the skin.

[0020] The accuracy of skin water loss is achieved through two steps: calibration of the temperature sensor 10 and humidity sensor 11, and water loss calibration. The temperature sensor 10 and humidity sensor 11 are calibrated using a known humidity environment (e.g., saturated aqueous solutions of various compounds) and a known temperature environment. Water loss calibration is performed using a known source of water loss.

[0021] The accuracy of the skin's surface temperature is achieved through two steps: calibration of the temperature sensor 10 and the humidity sensor 11, and calibration of the skin temperature. The calibration steps for the temperature sensor 10 and the humidity sensor 11 are the same as above. Skin temperature calibration can be achieved using an infrared thermometer available on the market.

[0022] Skin moisture content accuracy is achieved through two steps: reactance measurement calibration and skin moisture content calibration. Reactance measurement calibration is performed using known reactance components. Skin moisture content calibration can be performed using commercially available skin moisture content instruments.

[0023] The accuracy of skin elasticity measurement is achieved through two steps: pressure sensor 7 calibration and skin elasticity calibration. Pressure sensor 7 calibration is achieved by measuring a known pressure. Skin elasticity calibration can be achieved using skin pressure instruments available on the market.

[0024] The telescopic connection holes 3 are located on both sides of the water loss measurement cavity 9 . This arrangement can fully utilize the space of the detection end 12 .

[0025] The following is the workflow of the skin measurement instrument: S1. Turn on the measuring instrument and put the skin in contact with the detection end 12; S2, the microprocessor of the control circuit 2 reads the pressure sensor 7, the temperature sensor 10 and the humidity sensor 11, as well as the reactance between the two metal rods 6, and then calculates the corresponding skin water loss, skin surface temperature, skin moisture content, and skin elasticity value; S3. The display of the measuring instrument shows the skin water loss, skin surface temperature, skin moisture content, and skin elasticity value, and then transmits the data to the remote host and mobile phone via Bluetooth or WiFi; S4. Turn off the measuring instrument.

[0026] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A multifunctional skin measuring instrument, characterized in that: The device comprises an instrument body and a control circuit, wherein the detection end of the instrument body is provided with two telescopic connection holes, the bottom of the telescopic connection hole is provided with a telescopic slide groove, a slider is installed in the telescopic slide groove, a metal rod extending out of the telescopic connection hole is fixed on the slider, a pressure sensor is fixed at the bottom of the telescopic slide groove, a telescopic spring is installed in the telescopic slide groove, the telescopic spring is arranged between the slider and the pressure sensor, and the metal rod and the pressure sensor are electrically connected to the control circuit.

2. A multifunctional skin measuring instrument according to claim 1, characterized in that: The detection end of the instrument body is further provided with a water loss measurement cavity, in which a temperature sensor and a humidity sensor are fixed, and the temperature sensor and the humidity sensor are electrically connected to the control circuit.

3. A multifunctional skin measuring instrument according to claim 2, characterized in that: The telescopic connection holes are located on both sides of the water loss measurement cavity.

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