JPS6110743A - Apparatus for quantitatively measuring amount of dandruff - Google Patents

Abstract

PURPOSE:To measure the amount of dandruff accurately, by arranging a light source and photodetector so as to face to each other in an air sucking flow path, which sucks the dandruff, and measuring the amount of the sucked dandruff based on the output of the photodetector. CONSTITUTION:Dandruff 4 and air are sucked by a sucking device 2 into a measuring head 1. A light source 6 and a photodetector 7 are arranged in an air sucking flow path 5 in the measuring head 1 so that the light source 6 and the photodetector 7 face to each other. A measuring device 9 is connected to the photodetector 7. The measuring device 9 is composed of a data display part 11, which quantitatively measures and displayes the amount of the dandruff 4 based on the output of the photodetector, a number-of-dandruff display part 12, a dandruff-degree display part 13, an average size dispaly part 14 and the like. When the dandruff 4 passes between the light source 6 and the photodetector, the amount of the dandruff 4 is measured based on the output of the photodetector 7. The result is dispayed as the data. Thus the amount of the dandruff can be accurately measured and displayed.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a measuring device for quantitatively measuring the amount of dandruff produced on the scalp.

BACKGROUND OF THE INVENTION For example, when treating dandruff or providing hair consultation, accurate data about dandruff is required. One of the commonly used methods of collecting data on dandruff is the sensory test method, which visually evaluates the presence or absence of dandruff. Therefore, although it has the advantage of being able to accurately determine the presence or absence of dandruff, it lacks objectivity and efficiency and is not suitable for quantitatively measuring the amount of dandruff.

In addition, as a method to quantitatively measure the amount of dandruff, it is possible to measure the amount of dandruff gravimetrically, following the quantitative measurement of soot and dust, but the weight may vary depending on the water contained in the dandruff, hair conditioners, etc. It is difficult to obtain accurate data using this method, as there is no significant correlation between the visual presence of dandruff and the weight of the dandruff.

Problems Solved by the Invention The technical problem of the present invention is to collect dandruff mechanically and detect the collected dandruff by optical processing, thereby making it possible to quantitatively measure the amount of dandruff. The objective is to provide the data obtained by this method with a strong correlation with the visual evaluation of the presence or absence of dandruff.

Means for Solving the Problems In order to solve the above-mentioned problems, the measuring device of the present invention has a light source and a photodetector placed opposite each other in the suction air flow path in the measuring head that sucks dander together with air by a suction device. The device is characterized in that a measuring device is connected to the device for quantitatively measuring and displaying the amount of dandruff based on the output thereof.

Function When the dandruff sucked into the measurement head by the suction device passes between the light source and the photodetector, a dandruff detection signal is output from the photodetector to the measurement device, and the amount of dandruff is determined in the measurement device based on this detection signal. measured,
The measurement results are displayed as data on a display unit or the like.

Effects Dandruff is collected mechanically using a suction device via a measuring head, and the collected dandruff is detected by optical processing, making it possible to quantitatively measure the amount of dandruff. However, the measurement data has an excellent correlation with the visual assessment of the presence or absence of dandruff, making it easy to obtain highly accurate measurement data.

Example Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 shows the principle of the measuring device of the present invention.
2 indicates a measuring head, and 2 indicates a suction device connected to the measuring head 1. The measuring head 1 is configured to suck in dandruff 4 together with air through a suction port 3 by the negative pressure from the suction device 2. Suction air channel 5 in the measurement chamber l
A light source 6 and a photodetector 7 for optically detecting the dandruff 4 passing through the flow path are arranged opposite to each other on both sides of the flow path.

An i-filter 8 for collecting the sucked dandruff 4 is replaceably attached to the rear part of the measurement chamber l. When the dandruff 4 passes between the photodetector 7 and the light source 6, the photodetector 7 outputs a pulse (see FIG. 2) having a pulse width W corresponding to the size of the dandruff.

It is something to do.

In addition, a measuring device 8 connected to the photodetector
1 measures and displays the amount of dandruff based on a pulse signal as a dandruff detection signal output from a photodetector 7, and includes a calculation section 10 and a data display section 11.
At O, the number of dandruff is measured from the number n of pulses in the dandruff detection signal, and the sum Σw of the pulse width W is calculated as the degree of dandruff]7, and the result of the number n of pulses and the sum Σw of the pulse width W is calculated as data. Dandruff count display section 12 in the display section 11,
The dandruff level display section 13 and the average size display section 14 are respectively displayed as numerical values. At this time, these numbers are compared with the general average value, for example, large,
It may also be displayed on the grade display section 15 together with or in place of numerical values in graded evaluations such as medium and small.

Furthermore, when data related to dandruff is processed as an analog output, the height or area of the output waveform can be used to calculate the average size of dandruff instead of the pulse width.

Note that the measuring device 9 can be provided with a monitor display section 1B that displays the detection signal from the photodetector 7.

In the measuring device having the above configuration, when the dandruff 4 sucked into the measurement rad l by the suction device 2 passes between the light source 6 and the photodetector 7, the dandruff is released from the photodetector 7 as shown in FIG. A pulse signal having a pulse number n and a pulse width W corresponding to the number and magnitude of is output, and is input to the arithmetic device 10. In this arithmetic device 10, the sum Σ of the number n of pulses and the pulse fiw
The number of dandruff, the degree of dandruff, and the average size of dandruff are obtained from w, Σw, and the ratio □ of the sum of the number of pulses n and the pulse width W, and these are displayed on the data display section 11, respectively.

FIG. 3 shows a specific example of the configuration of the measuring device shown in FIG. 1. As shown in the figure, forming the mouth edge of the suction port 3 in the measurement spatula 1 in a serrated shape is very effective in easily exfoliating and collecting dandruff on the scalp or in the hair. be.

[Brief explanation of drawings]

FIG. 1 is a basic configuration diagram of the measuring device of the present invention, FIG. 2 is a diagram showing a dandruff detection signal, and FIG. 3 is a perspective view showing a specific example of the configuration of the measuring device of the present invention. 1. Lu measurement head, 2. Suction device, 4. Dandruff, 5. Suction air supply channel, 6. Light source,
7...Photodetector, 9...Measuring device.

Claims (1)

[Claims] 1. A light source and a photodetector are disposed opposite to each other in a suction air flow path in a measurement head that sucks dandruff together with air by a suction device, and the amount of dandruff is quantitatively measured based on the output of the photodetector. A quantitative measuring device for measuring dandruff, characterized in that a measuring device for displaying the amount is connected. 2. Claim 1, characterized in that the measuring device for quantitatively measuring and displaying the amount of dandruff is configured as a device for measuring and displaying the number of pulses when dandruff passes in the output of a photodetector and their pulse widths. Quantitative measuring device for the amount of dandruff described in Section 1. 3. Using a measuring device that quantitatively measures and displays the amount of dandruff, calculate the number of dandruff by the number n of pulses when the dandruff passes in the output of the photodetector, and further calculate the width of those pulses w.
3. The apparatus for quantitatively measuring the amount of dandruff according to claim 1 or 2, characterized in that the average size of dandruff is determined by the ratio Σw/n of Σw/n.