Device and method for precisely measuring skin moisture
View Patent ↗The present disclosure relates to a device and method for precisely measuring skin moisture, and more particularly, to a device and method for precisely measuring skin moisture in which measurement of skin moisture is not affected by pressure applied to the device. A device for precisely measuring skin moisture according to one aspect of the present disclosure may include a main body which is open toward a measurement target and has a hollow portion, a contact part slidably mounted on the main body and having a window provided thereon to come in contact with the measurement target, and a connector which includes an elastic member provided to connect the main body and the contact part and be compressed during sliding of the contact part into the main body.
1 . A device for precisely measuring skin moisture, the device comprising:
a main body which is open toward a measurement target and has a hollow portion;
a light source part configured to irradiate the measurement target with terahertz (THz) waves through the hollow portion;
a THz wave detector configured to detect the THz waves reflected from the measurement target; and
a contact part slidably mounted on the main body and having a window provided thereon to come in contact with the measurement target,
wherein the main body includes a connector configured to connect the main body and the contact part, a laser irradiator configured to irradiate laser toward the window, and a laser detector configured to detect the laser reflected from the window,
the contact part is connected to the main body to be slidable in each of a direction in which the contact part is inserted into the main body and a direction in which the contact part protrudes to an outside of the main body, and
wherein the THz wave detector detects the THz waves when the laser is detected by the laser detector.
2 . The device of claim 1 , wherein the laser irradiator is disposed at one side surface of the hollow portion, and the laser detector is disposed at the other side surface of the hollow portion.
3 . The device of claim 1 , wherein the light source part and the THz wave detector are disposed in the hollow portion of the main body.
4 . The device of claim 1 , wherein:
the light source part further includes a light source lens; and
the THz wave detector further includes a light receiving lens.
5 . The device of claim 1 , wherein the connector includes:
an elastic member connected to an upper end of the contact part; and
an elastic member support connected to a lower end of the main body and configured to support the elastic member, and
the elastic member is provided to be compressed during sliding of the contact part into the main body.
6 . A method for precisely measuring skin moisture using the device of claim 1 , the method comprising:
bringing the window of the contact part in close contact with the skin;
irradiating the laser toward the window,
detecting the laser reflected from the window,
irradiating the THz waves toward the skin; and
detecting the THz waves reflected from the skin,
wherein, in the detecting of the THz waves, the THz wave detector detects the THz waves when the laser is detected by the laser detector.