JP3688811B2 - Oil moisture measuring device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an oil moisture measuring apparatus that measures the amount of oil and water adhering to the surface of a subject, and is particularly suitable for measuring sebum (oil amount) and water adhering to the skin surface. Is.
[0002]
[Prior art]
This kind of oil moisture measuring device that measures the amount of sebum and moisture in the skin is used to obtain reference data when selecting the most appropriate cosmetics according to the nature of the customer's skin at stores such as cosmetic stores. are used (JP-A-2-268738, see JP Hei 3-26230).
FIG. 3 is a perspective view showing such a conventional oil / moisture measuring device, and FIG. 4 is a block diagram showing the oil content measuring device in which an oil collecting tip 51 can be mounted on the top surface of the desktop device body 50. Holders 57, 58, and 59 for storing a probe 52, a moisture measurement probe 54 with a moisture sensor 53 at the tip, and a skin temperature measurement probe 56 with a temperature sensor 55 at the tip are formed. An oil measuring optical system 61 for irradiating light to the oil collecting tip 51 and detecting the intensity of reflected light is arranged at the bottom of the holder 57 that houses the oil measuring probe 52. The moisture measuring probe 54, skin temperature measuring The probe 56 is connected to the apparatus main body 50 via signal lines 62 and 63.
[0003]
The apparatus main body 50 includes an oil content measuring means 64 for measuring the oil content based on the reflected light intensity detected by the oil content measuring optical system 61, and a moisture content based on the output signal of the moisture sensor 53. A water content measuring means 65 for calculating and a temperature measuring means 66 for calculating the skin temperature based on the output signal of the temperature sensor 55 are provided, and the oil amount calculated by each of the measuring means 64, 65, 66 is provided on the front thereof. , An oil content display unit 67, a water content display unit 68, and a temperature display unit 69 for displaying the water content and skin temperature, respectively.
[0004]
First, when measuring the oil content, the oil collection tip 51 is attached to the tip of the oil measurement probe 52 to measure the reflected light intensity before oil collection, and then the oil measurement probe 52 is removed from the holder 57. After the oil collection tip 51 is pressed against the skin and collected, and then stored in the holder 57 again and the reflected light intensity after oil collection is measured, the amount of oil measured based on the change in reflected light intensity is the oil content. It is displayed on the display unit 67.
Next, when measuring the moisture content, the moisture measurement probe 54 is removed from the holder 58, the moisture sensor 53 at the tip is pressed against the skin, and the switch 54a is pushed. Based on the output signal, the moisture content is measured by the moisture measurement means. Is calculated and the result is displayed on the moisture display unit 68.
Further, the skin temperature can also be measured using the temperature measurement probe 56 in the same manner as the water content.
[0005]
[Problems to be solved by the invention]
However, since this type of oil moisture measuring device requires the measurement probes 52 and 54 for each measurement object such as oil content and moisture, the device main body has to be made a desktop type and has a problem that it becomes large. It was.
Therefore, it is good to use it permanently in the store, but it is too large to carry when it is used as a sales promotion tool by a visiting salesperson, or when a cosmetics staff member of a cosmetic manufacturer in charge of multiple retailers carries it. It was not possible to do so and the handling was inconvenient.
Further, when measuring the oil content, there is a problem that the time for pressing the oil sampling tip against the skin is not constant and the measurement error is large.
Therefore, the present invention can be formed to be extremely small and compact so that even a female beauty staff can easily carry it in a bag, and at the same time, second, when measuring oil content The technical challenge is to be able to reduce the error no matter who measures.
[0006]
[Means for Solving the Problems]
In order to solve this problem, the present invention is an oil moisture measuring apparatus for measuring the amount of oil and moisture adhering to the surface of a subject, and a moisture sensor for detecting the amount of moisture on the subject surface is at the tip. A measuring probe disposed and a moisture amount measuring means for calculating a moisture amount based on an output signal of the moisture sensor, and detachably attached to the tip of the measuring probe so as to cover the moisture sensor Based on an output signal of the oil detection optical system, an oil measurement hole in which an oil detection optical system for irradiating light to the oil collection surface of the oil collection cap and detecting the reflected light is disposed inside, And an oil content measuring means for calculating the oil content, and a display unit for displaying the water content and the oil content calculated by the water content measuring means and the oil content measuring means.
[0007]
According to this, when measuring the amount of water, the measurement probe may be pressed against the surface of the subject, and when measuring the amount of oil, the oil collection cap is attached to the tip of the measurement probe and the oil content is removed. After collection, the oil collection cap can be removed from the measurement probe and inserted into the oil measurement hole, so that one measurement probe can be used for both moisture measurement and oil measurement. There is no need to provide the device, and the apparatus can be miniaturized.
[0008]
According to a more preferred embodiment, when the switching sleeve having the moisture sensor attached to the tip thereof is slidably supported by the measurement probe, and the switching sleeve is pushed into the measurement probe. This switch outputs a switch signal that activates the moisture content measuring means when the moisture sensor is pressed against the subject when measuring the moisture content, and covers the oil sampling cap when measuring the oil content. A switch signal for driving a timer that emits a notification sound when a certain time has elapsed after being pressed against the specimen is output.
[0009]
According to this, when the tip of the measurement probe is pressed against the surface of the subject, the switching sleeve is pushed in and the switch is operated. Therefore, when the moisture sensor is pressed against the subject, the moisture content is measured. A switch signal that activates the means is output, and a switch signal that drives a timer that emits a notification sound when a certain amount of time has elapsed after pressing the oil collection cap against the subject at the time of oil amount measurement is output.
That is, even when the oil collecting cap attached to the tip of the measurement probe is pressed against the surface of the subject, the switching sleeve is pushed in, the switch is operated, the timer is activated, and a notification sound is emitted after a predetermined time (for example, 10 seconds). Therefore, the time during which the oil collecting cap is pressed against the surface of the object is maintained constant, and measurement errors due to the length of the oil collecting time can be almost eliminated.
[0010]
According to a further preferred embodiment, the measurement probe, the moisture content measuring means, the oil content measurement hole, the oil content measurement means, and the display unit are arranged on the main body of the oil moisture measurement device. In addition, since it is formed in an all-in type, it can be formed more compactly.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be specifically described based on embodiments shown in the drawings.
FIG. 1 is a perspective view showing an example of an oil and moisture measuring apparatus according to the present invention, FIG. 2 is a block diagram thereof, and FIG. 3 is an electric circuit diagram showing an example of a power supply circuit thereof.
[0012]
In the figure, reference numeral 1 denotes an oil moisture measuring device that measures the amount of oil and moisture adhering to the surface of the subject, and the moisture main body 2 of the oil moisture measuring device detects the amount of moisture on the subject surface. A measuring probe 4 having a sensor 3 disposed at the tip is formed to protrude, and light is applied to the oil collecting surface 5a of the oil collecting cap 5 on the back side of the apparatus body 3 with respect to the measuring probe 4. An oil measurement hole 7 is formed in which an oil detection optical system 6 for detecting the reflected light is disposed.
[0013]
Further, inside the apparatus main body 2, a moisture amount measuring means 8 that calculates a moisture amount based on an output signal of the moisture sensor 3, and an oil that calculates an oil amount based on an output signal of the oil component detection optical system 6. A quantity measuring means 9 is provided, and a display unit 10 for displaying the water content and the oil content calculated by the water content measuring means 8 and the oil content measuring means 9 is provided on the front thereof.
As the moisture sensor 3, for example, a variable capacitance sensor that detects the amount of moisture based on the capacitance of the subject touching the measurement surface is used. A capacitance-water content conversion table storing the relationship between the electric capacity, the size, and the water content is stored.
[0014]
The oil collecting cap 5 is used for the measurement so as to cover the moisture sensor 3 in a state in which a seal 5b applied with a paint whose light reflectance changes depending on the amount of attached oil is attached to the oil collecting surface 5a at the tip. The probe 4 is detachably attached to the tip of the probe 4 and pressed against the surface of the subject while attached to the tip of the measurement probe 4 at the time of oil content measurement. After collecting the oil content on the subject surface, the cap 5 is attached to the measurement probe 4. And is inserted into the oil measurement hole 7 to optically measure the amount of oil.
In the oil content measuring means 9, the reflected light intensity when no oil is attached to the seal 5b is stored as the oil content 0, and the reflected light intensity-oil content conversion table storing the relationship between the reflected light intensity and the oil content. Is stored in advance.
[0015]
The seal 5b has its paint surface covered with an overlay 5c so that finger oil does not adhere to the surface when the seal 5b is applied, and the oil collecting cap 5 is collected with the overlay 5c attached. After pasting on the surface 5a, only the overlay 5c is peeled off.
In addition, after use, only the seal 5b is replaced and used repeatedly. If necessary, such a paint is applied to the oil collecting surface 5a in advance and the oil collecting cap 5 is made disposable. Also good.
[0016]
The measurement probe 4 includes a switch 12 that is slidably supported by a switching sleeve 11 having the moisture sensor 3 attached to the tip thereof, and is operated when the switching sleeve 11 is pushed.
The switch 12 outputs a switch signal that activates the moisture content measuring means 8 when the moisture sensor 3 is pressed against the surface of the subject and the switching sleeve 11 is pushed in when measuring the moisture content. Further, when the oil amount is measured, the oil collecting cap 5 is attached to the measurement probe 4 and is pressed against the subject to output a switch signal for driving the timer 13 when the switching sleeve 11 is pushed. The timer 13 is configured to sound a notification sound after a predetermined time has elapsed since the switch signal was input.
[0017]
Reference numeral 14 denotes a spring that urges the switching sleeve 11 in the extending direction, and is built in the measurement probe 4. Reference numeral 15 denotes a spring that presses the moisture sensor 3 against the subject at a constant pressure, and is built in the switching sleeve 11. ing.
Reference numeral 16 denotes a main switch for turning on and off a power supply circuit 21 that uses the battery 20 as a power source, 17 denotes a water content measurement switch, and 18 denotes an oil content measurement switch.
[0018]
The power supply circuit 21 determines the polarity of the set battery 20 and always outputs a DC voltage with a constant polarity, and the DC voltage output from the polarity determination circuit 22 with a predetermined constant voltage value. It comprises a constant voltage circuit 23 for outputting.
The polarity determination circuit 22 is formed of a bridge circuit in which diodes D _{1 to} D ₄ are connected in a bridge shape, and the input terminals 24A and 24B of the bridge circuit are connected to the positive and negative electrodes 20A and 20B of the battery 20, and the bridge circuit. Are connected to the constant voltage circuit 23, and the output voltage of the constant voltage circuit 23 is supplied to each electronic circuit of the oil moisture measuring apparatus 1.
[0019]
The above is one configuration example of the present invention, and the operation thereof will be described next.
First, when the battery 20 is set and the main switch 16 is pressed, the power supply voltage is supplied to each electronic circuit of the oil moisture measuring device. At this time, regardless of which of the positive and negative electrodes 20A and 20B of the battery 20 is connected to the input terminals 24A and 24B, the output terminal 25+ side is positive and the output terminal passes through the polarity determination circuit 22 configured by a bridge circuit. A DC voltage with a constant polarity that is negative on the 25-side is output. Therefore, not only can the polarity of the battery 20 be set, but also the electronic circuit of the oil / moisture measuring device 1 is not adversely affected by applying a voltage of opposite polarity.
[0020]
When the moisture content is to be measured, the moisture measurement switch 17 is pressed, and the moisture sensor 3 attached to the tip of the measurement probe 4 is pressed against the subject surface while holding the apparatus body 2 by hand. The switching sleeve 11 is pushed into the measuring probe 4 and a switch signal for starting the moisture amount measuring means 8 is output from the switch 12.
The moisture amount measuring means 8 measures the capacitance of the subject based on the detection signal output from the moisture sensor 3 and refers to the capacitance-moisture amount conversion table based on this, and sets the moisture amount to 1 for example. The value is displayed on the display unit 10 while being replaced with stepwise numerical values from ˜15.
[0021]
Next, when the amount of oil is to be measured, the seal 5 b is attached to the oil collecting surface 5 a of the oil collecting cap 5, the overlay 5 c is peeled off, and the tip of the measurement probe 4 is attached so as to cover the moisture sensor 3.
Then, when the oil amount measuring switch 18 is pressed and the oil collecting cap 5 attached to the tip of the measuring probe 4 is pressed against the subject surface, the switching sleeve 11 is pushed into the measuring probe 4 and the switch 12 is pressed. To output a switch signal for starting the timer 13.
When the switch signal is input, the timer 13 generates a beep sound after a predetermined time has elapsed (for example, after 10 seconds), so that the time for pressing the oil collection cap 5 against the subject is always constant. Therefore, it is possible to eliminate measurement errors due to the length of the pressing time.
[0022]
Next, the oil collecting cap 5 is removed from the measurement probe 4 and inserted into the oil measuring hole 7. At this time, since the oil component measuring optical system 6 is already turned on when the oil amount measuring switch 18 is pressed, the reflected light intensity is immediately detected.
On the other hand, the oil content measuring means 9 is configured to automatically start measurement when a reflected light of a certain level or more is input. If the oil content collecting cap 5 is inserted into the oil content measuring hole 7, the oil content measuring means 9 will reach a certain level. Since the reflected light is detected, measurement of the oil content is started.
When the reflected light intensity of the oil collecting surface 5a of the oil collecting cap 5 is detected, the reflected light intensity-oil amount conversion table is referred to based on this, and the oil amount is stepwise from 1 to 15, for example. It is replaced with a numerical value and displayed on the display unit 10.
[0023]
【The invention's effect】
As described above, according to the present invention, since one measuring probe is used for both moisture measurement and oil measurement, only one measuring probe is required, and a plurality of measuring probes are used. Therefore, the entire device can be reduced in size, and furthermore, since only one measurement probe is required, it can be an all-in-one type attached to the device body, which can be further reduced in size. Has an excellent effect.
[0024]
Also, when the tip of the measurement probe is pressed against the surface of the subject, the switching sleeve is pushed in and the switch is operated, and when measuring the moisture content, the switch that activates the moisture content measuring means when the moisture sensor is pressed against the subject Not only a signal is output, but also when measuring the oil content, a switch signal is output to start a timer that sounds an alarm sound after a certain time has passed since the oil cap was pressed against the subject. The time of pressing against the surface can be kept constant, the measurement error due to the length of the oil collecting time can be eliminated, and there is an effect that accurate measurement can be performed.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an oil moisture measuring apparatus according to the present invention.
FIG. 2 is a block diagram thereof.
FIG. 3 is a circuit diagram illustrating an example of a power supply circuit.
FIG. 4 is a perspective view showing a conventional device.
FIG. 5 is a block diagram of a conventional apparatus.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Oil moisture measuring apparatus 2 ... Apparatus main body 3 ... Moisture sensor 4 ... Measurement probe 5 ... Oil content collection cap 5a .. Oil content collection surface 6 ... Oil content detection optical system 7. ··· Oil content measurement hole 8 ··· Water content measurement means 9 ··· Oil content measurement means 10 ··· Display unit 11 · · · Switching sleeve 12 · · · Switch 13 · · · Timer 20 · · · Battery 21 · · · ..Power supply circuit 22 ... Polarity determination circuit

Claims (4)

An oil moisture measuring device for measuring the amount of oil and moisture adhering to the surface of a subject,
A measurement probe (4) having a moisture sensor (3) for detecting the moisture content on the surface of the subject disposed at the tip, and a moisture content measuring means for calculating the moisture content based on the output signal of the moisture sensor (3) (8)
Light is applied to the oil collecting cap (5) detachably attached to the tip of the measurement probe (4) so as to cover the moisture sensor (3), and the oil collecting surface (5a) of the oil collecting cap (5). An oil content measurement hole (7) in which an oil content detection optical system (6) for irradiating and detecting the reflected light is disposed, and an oil content amount for calculating the oil content based on an output signal of the oil content detection optical system (6) Measuring means (9);
An oil moisture measuring apparatus comprising: a display unit (10) for displaying the moisture content and the oil content calculated by the moisture content measuring means (8) and the oil content measuring means (9). An oil moisture measuring device for measuring the amount of oil and moisture adhering to the surface of a subject,
A measurement probe (4) having a moisture sensor (3) for detecting the moisture content on the surface of the subject disposed at the tip, and a moisture content measuring means for calculating the moisture content based on the output signal of the moisture sensor (3) (8)
Light is applied to the oil collecting cap (5) detachably attached to the tip of the measurement probe (4) so as to cover the moisture sensor (3), and the oil collecting surface (5a) of the oil collecting cap (5). An oil content measurement hole (7) in which an oil content detection optical system (6) for irradiating and detecting the reflected light is disposed, and an oil content amount for calculating the oil content based on an output signal of the oil content detection optical system (6) Measuring means (9);
A display unit (10) for displaying the moisture content and the oil content calculated by the moisture content measurement means (8) and the oil content measurement means (9),
A switching sleeve (11) having the moisture sensor (3) attached to the tip is slidably supported on the measurement probe (4), and the switching sleeve (11) is disposed in the measurement probe (4). With a switch (12) that is operated when pushed into the
The switch (12) outputs a switch signal that activates the moisture content measuring means (8) when the moisture sensor (3) is pressed against the subject at the time of measuring the moisture content, and at the same time the oil collecting cap is used at the time of measuring the oil content. An oil / moisture measuring device that outputs a switch signal for driving a timer (13) that emits a notification sound when a predetermined time has elapsed after being pressed against a subject. In the apparatus main body (2), the measurement probe (4), the moisture content measurement means (8), the oil content measurement hole (7), the oil content measurement means (9), and the display unit (10 The oil-and-water measuring apparatus according to claim 1 or 2, wherein A power supply circuit (21) that uses a battery (20) as a power source is formed in the device body (2). 4. The oil and moisture measuring device according to claim 1, further comprising a polarity determination circuit (22) for outputting a voltage.

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