JP2002082046A - Urinalysis device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a maintenance-free toilet seat having a urinalysis function with high measuring accuracy, without requiring an urine conveying mechanism, such as a pump. SOLUTION: A light emitting means 51 and a light receiving means 52 are sealed inside a nozzle 5 provided with a urine reservoir 55 and the concentration of urine sugar or urine proteins can be measured from changes in quantity of light coming from the light emitting means 51 and passing through the urine reservoir 55 and impinging on the light receiving portion 52, while reducing the influence of interfering substances.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a urine testing apparatus for checking urine components such as urine sugar so that health can be easily managed at home or at work.

[0002]

2. Description of the Related Art There is an increasing demand for testing urine components such as urinary glucose and urine protein for prevention of diabetes and the management of physical condition.

[0003] Conventional methods for urinalysis at home include:
Mostly, a urine test paper purchased at a pharmacy or the like was immersed for a certain period of time, and the color change due to the chemical reaction of the test paper was read.

In addition to such a method, a method has been proposed in which the concentration of a rotatory substance in urine is measured based on the optical rotation of light. In this method, when the urine is irradiated with a laser beam, the optical rotation generated according to the concentration of the optical rotation substance in the urine is reversed by applying a magnetic field proportional to the amount of current applied to the coil, thereby canceling the optical rotation. That is, the concentration of the optical rotation substance in urine can be calculated from the amount of current at the time when the optical rotations of the two become exactly the same.

[0005]

However, in the optical rotation method, optical rotation is also caused by the optical rotation component (hereinafter, interference component) other than the target component to be measured in urine, so that the interference component is present in high concentration in urine. In some cases, the measurement results may be shifted. In addition, in the optical rotation method, the amount of transmission of laser light is reduced due to scales or the like adhered during a large number of measurements, which may affect the measurement accuracy.

[0006]

SUMMARY OF THE INVENTION In view of the above-mentioned problems, the present invention provides an apparatus for measuring the concentration of a component from the optical rotation of a urine component.
The combined value of the optical rotations due to the concentration of the target component in urine and the interfering component is measured from the light intensity received by the light receiving unit according to the plurality of magnetic field strengths and the plurality of magnetic field strengths by the magnetic field application unit,
The concentration of the target component is calculated from the optical rotation measured at the first wavelength and the second wavelength using a preset optical rotation ratio of the target component and the interference component at the first wavelength and the second wavelength.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The first aspect of the present invention is a first aspect of the invention.
A light emitting unit that emits light of a component having a specific polarization direction of the wavelength and the second wavelength, a magnetic field applying unit that applies a magnetic field to the light from the light emitting unit, and a light passing through the urine and the magnetic field applying unit from the light emitting unit. A light receiving unit for receiving a component in a specific polarization direction, wherein for each of the first wavelength and the second wavelength, a plurality of magnetic field strengths are received by the magnetic field applying unit and the light is received by the light receiving unit in accordance with the plurality of magnetic field strengths From the obtained light intensity, the sum of the optical rotation due to the concentration of the target component in urine and the interfering component is measured, and the first optical rotation ratio between the target component and the interfering component at the first wavelength and the second wavelength is set in advance. The target component concentration is calculated from the optical rotation measured at the wavelength and the second wavelength.

According to a second aspect of the present invention, in a nozzle for receiving urine, a urine reservoir formed in a concave shape and two sets of light emitting components of a first polarization and a second wavelength in a specific polarization direction. A light-emitting means; a magnetic field applying means for applying a magnetic field to the light from the light-emitting means; and two sets of light-receiving means for receiving from the light-emitting means the urine and the component of the light having passed through the magnetic field applying means in a specific polarization direction. Then, the combined value of the optical rotations due to the concentration of the target component in urine and the interference component is measured from the plurality of magnetic field intensities by the magnetic field applying unit and the light intensity received by the light receiving unit in accordance with the plurality of magnetic field intensities, and preset. The target component concentration is calculated from the optical rotation measured at the first wavelength and the second wavelength using the optical rotation ratio of the target component and the interference component at the first wavelength and the second wavelength.

According to a third aspect of the present invention, in a nozzle for receiving urine, a urine reservoir formed in a concave shape and two sets of light emitting components having a first polarization and a second wavelength in a specific polarization direction. A light emitting unit, a magnetic field applying unit that applies a magnetic field to light from the light emitting unit, and a light receiving unit that receives a component in a specific polarization direction of light that has passed through the urine and the magnetic field applying unit from the light emitting unit, The combined value of the optical rotation due to the concentration of the target component in urine and the interfering component is measured from the light intensity received by the light receiving unit according to the plurality of magnetic field strengths and the plurality of magnetic field strengths by the magnetic field application unit, and The target component concentration is calculated from the optical rotation measured at the first wavelength and the second wavelength using the optical rotation ratio of the target component and the interference component at the first wavelength and the second wavelength.

According to a fourth aspect of the present invention, there is provided a urine reservoir having a urine receiving portion formed in a concave shape for receiving urine and having a reflective material disposed on an end face thereof, in a nozzle for receiving urine, and a specific polarization direction of the first wavelength and the second wavelength. Two sets of light emitting means for emitting component light, a magnetic field applying means for applying a magnetic field to the light from the light emitting means, and identification of light reflected by the reflecting material from the light emitting means and passing through urine and the magnetic field applying means Two sets of light receiving means for receiving a component in a polarization direction, a plurality of magnetic field intensities by the magnetic field applying means, and a target component concentration in urine from light intensity received by the light receiving means in accordance with the plurality of magnetic field intensities. And the sum of the optical rotations due to the interfering component was measured, and measured at the first wavelength and the second wavelength using the predetermined optical rotation ratio of the target component and the interfering component at the first wavelength and the second wavelength. From the optical rotation, the target component It is configured to calculate the degree.

According to a fifth aspect of the present invention, in a nozzle for receiving urine, a urine reservoir formed in a concave shape and having a reflective material disposed on an end face thereof, and light having a specific polarization direction of the first wavelength and the second wavelength. Two sets of light emitting means for emitting light, a magnetic field applying means for applying a magnetic field to light from the light emitting means, and a specific polarization direction of light reflected by the reflector from the light emitting means and passing through urine and the magnetic field applying means Light receiving means for receiving the component,
The sum of the optical rotations due to the concentration of the target component in urine and the interfering component is measured from the plurality of magnetic field intensities by the magnetic field applying unit and the light intensity received by the light receiving unit in accordance with the plurality of magnetic field intensities, and is determined in advance. Using the optical rotation ratio of the target component and the interference component at the first wavelength and the second wavelength,
The target component concentration is calculated from the optical rotation measured at the wavelength and the second wavelength.

The invention according to claim 6 is configured such that the optical rotation ratio between the target component and the interfering component is defined as the optical rotation ratio between urine sugar and urine protein as the main substance causing the rotation of urine.

According to the present invention, the optical rotation ratio of the target component and the interfering component is determined by overaveraging the optical rotation ratio of urine sugar and other urinary optical rotation substances by an average discharge concentration ratio. The optical rotation ratio is set to.

[0014] The invention described in claim 8 is configured so that the optical rotation obtained by overaveraging the optical rotation of other urinary optical rotation substances with an average discharge concentration ratio is changed according to age, sex, and the like.

According to the ninth aspect of the present invention, by disposing two sets of light receiving means or two sets of light emitting means in the horizontal direction with respect to the ground, unevenness of the component concentration due to gravity is caused between the two wavelength optical paths. It is configured not to be.

[0016]

(Embodiment 1) Hereinafter, Embodiment 1 of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the configuration of this embodiment. The hot water flush toilet seat shown in FIG. 1 includes a toilet seat unit 2 that stores a toilet seat 1, a cleaning nozzle, a control circuit, and the like. 4 is a toilet bowl and 3 is a washing water tank. Reference numeral 5 denotes a urine test nozzle, which is a toilet seat unit 2
A nozzle driving unit including a gear motor for rotating and storing the urine test nozzle 5 is formed. Urine test nozzle 5 of FIG.
The enlarged view of the tip portion of the figure shows a case where the urine test nozzle is configured as a reflection type, where 51 is a light emitting unit, 52 is a light receiving unit, 55 is a urine reservoir that collects urine hung on the nozzle, and 551
Is a reflector that reflects the laser light from the light emitting unit 51 and makes it incident on the light receiving unit 52.

FIG. 3 shows an example of the configuration of the tip of the urine test nozzle 5. FIG. 3A is a top view of the urine test nozzle 5,
(B) is a side view. Reference numeral 511 in the light emitting unit 51 denotes a laser light source that emits a first wavelength, 512 denotes a laser light source that emits a second wavelength, and 513 denotes a polarization filter that passes only linearly polarized light components in a specific direction from both laser light sources. A Faraday coil 522 in the light receiving section 52 applies a magnetic field to the laser beam reflected by the reflector 53. A liquid optical rotatory material such as water is sealed in the core of the coil with glass or a glass rotator. Insert the solid optical rotation material. 523 is
This is an analysis filter that passes a linearly polarized light component in a specific direction in the light reflected by the reflector 53 from the light emitting unit 51 and passing through the Faraday coil 522, and is disposed in a direction relatively orthogonal to the polarization filter here. . A light receiving element 521 detects the amount of light that has passed through the light analysis filter 523. Note that the Faraday coil 522 may be disposed on the light emitting unit 51 side.

FIG. 4 is a control block diagram when the urine sugar value is calculated with the configuration of the urine test nozzle 5 shown in FIG. Reference numeral 20 in FIG. 2 denotes a control unit for controlling the entire urine component testing apparatus, which is constituted by a microcomputer and its peripheral circuits. 21
23, an input / output unit composed of operation keys for instructing the user to start an operation and a liquid crystal panel for displaying a urine test result;
Is a light emitting circuit for turning on and off the laser light sources 511 and 512 alternately, 24 is a light quantity detecting circuit for inputting an output signal corresponding to the light quantity from the light receiving section 521 to the control section 20 as a voltage value, and 25 is a current quantity of 522 Is a magnetic field marking circuit for controlling the intensity of the applied magnetic field and the modulation component.

First, when the user instructs “preparation for urine test” from the input / output unit 21, the control unit 20 causes the urine test nozzle 5 stored by the nozzle drive unit 6 to protrude into the toilet 4. When the user has finished urinating and instructs “test start” from the input / output unit 21, the control unit 20 turns on the laser light source 511 of the first wavelength by the light emitting circuit 23. The light from the laser light source 511 is rotated according to the urine sugar concentration of the urine in the urine reservoir 55, passes through the analyzer 522, and enters the light receiving element 521. The incident light amount is converted into a voltage by the light amount detection circuit 24 and detected by the control unit 20.

In the control unit 20, the current applied to the 522 Faraday coil 523 is sequentially changed by the magnetic field application circuit 25 to change the intensity of the applied magnetic field. Detect the current value. The control unit 20 calculates the optical rotation angle Θ1 at the first wavelength λ1 from the current value according to a calculation program stored in advance from the current value.

Subsequently, the control unit 20 turns on the laser light source 512 of the second wavelength and measures the optical rotation angle Θ2 at the second wavelength λ2 in the same manner as in the case of the first wavelength. The control unit 2 calculates a urinary sugar value in which the influence of the interfering substance has been corrected from the optical rotations # 1 and # 2, and displays the result via the input / output unit 21.

Hereinafter, an example of a method for calculating the urine sugar concentration from the optical rotations # 1 and # 2 in this embodiment will be described.

In general, the measured optical rotation angle 、 is α, the optical rotation coefficient per unit optical path length and unit concentration is α, the urine sugar concentration in urine is C, and the optical path through which the light is reflected and passes through the urine storage cell 55. If the length is 2L, (Equation 1) is obtained.

Θ = α · C · 2L (Equation 1) However, in the case where an interfering component such as a protein is mixed therein, the measured optical rotation angle Θ is determined per unit optical path length and unit concentration of the interfering substance. If the optical rotation coefficient of α is α ′ and the concentration in urine is C ′, the following equation (2) is obtained.

Θ = α · C · 2L + α ′ · C ′ + 2L (Equation 2) It is known that these optical rotation coefficients have wavelength characteristics, and this qualitative relationship is shown in FIG. FIG. 2 shows the wavelength characteristics of sugar and 81 whose wavelength is taken on the horizontal axis and whose optical rotation coefficient per unit concentration and unit optical path length is taken on the vertical axis.
2 is the wavelength characteristic of the sugar and the interfering substance. Plus and minus mean that the direction of optical rotation is opposite.

Now, the first wavelength λ measured with the configuration of FIG.
Since the optical rotation coefficients of urine sugar and the interfering substance of the first and second wavelengths λ2 are α11, −α21, α12 and −α22, respectively, when applied to (Equation 2), (Equation 3) and (Equation 4) Become like

Θ1 = α11 · C · 2L−α21 · C ′ · 2L (Formula 3) Θ2 = α12 · C · 2L−α22 · C ′ · 2L (Formula 4) From the above, in the control unit 20 of FIG. A program for calculating the urine sugar concentration C from (Equation 3) and (Equation 4) using the optical rotation coefficient such as α11 and the optical path length of the urine collecting cell 50 as a known constant is stored, and the first and second measured values are measured. Is calculated from the optical rotation angles か ら 1 and Θ2 at the wavelength of.

In this embodiment, the configuration has been described in which laser light from two laser light sources is received by one light receiving element.
In addition to the reflection type two laser light source 2 light receiving element as shown in FIG. 5, a transmission type structure as shown in FIGS. 6 and 7 is also possible.

In addition, since the urine cell unit 50 may adhere to scale, etc., due to long-term use, it is very effective to make the urine cell unit 50 detachable and replaceable or cleaned.

By disposing the two sets of light receiving means and the two sets of light emitting means in the horizontal direction with respect to the ground, it is possible to reduce the variation in components on the optical path of light of two wavelengths due to sedimentation, etc. And urine protein can be measured with high accuracy.

(Embodiment 2) Hereinafter, Embodiment 2 of the present invention will be described with reference to the drawings. In the present embodiment, the configuration and operation of the entire apparatus can be performed in the same manner as in the first embodiment, and a calculation method for calculating the urine sugar concentration from the optical rotation angles Θ1 and Θ2 measured at the first and second wavelengths is described. It is different.

Generally, proteins and amino acids are known as urinary optical rotation substances having a high concentration ratio, and the average urinary concentration of these substances is introduced in literatures.

FIG. 8 shows the qualitative wavelength characteristics of urine protein and urine amino acid as representative components of the interference components in measuring the urinary sugar level. Here, the average urine protein in urine is represented by a urine amino acid concentration ratio of R. It is known that one factor of the change in the concentration of the components in the urine varies depending on the degree of concentration due to the difference in the amount of urine such as perspiration or a drink. In such a case, the concentrations of both components fluctuate while maintaining a ratio close to R. It is possible.

Therefore, it is possible to use the weighted average of the average concentration ratio R of the two as the virtual optical rotation coefficient of the interfering substance.

In this case, α21 ′ = (α21 + R · α31) / (R + 1) α22 ′ = (α22 + R · α32) / (R + 1) Therefore, as in the first embodiment, the control unit 20 sets the α2
The urine sugar concentration is calculated using 1 ′ and α22 ′, and the calculation result is displayed on the input / output unit 21.

It is known that the average concentration of the urine substance differs between men and women and the age.
It is configured to input gender distinction from 1 and the optimal α
A method of calculating using 21 ′ and α22 ′ is also effective.

[0037]

According to the first aspect of the present invention, there is provided a highly accurate urine test apparatus which calculates the concentration of a target component from the optical rotation measured at the first wavelength and the second wavelength, thereby reducing the influence of interference components. You can do it.

According to a second aspect of the present invention, in a nozzle for receiving urine, a urine reservoir formed in a concave shape, and emits only light having a specific polarization direction of the first wavelength and the second wavelength.
A set of light emitting means, a magnetic field applying means for applying a magnetic field to the light from the light emitting means, and two sets of light receiving means for receiving only components of light having passed through the urine and the magnetic field applying means from the light emitting means in a specific polarization direction And measuring the sum of the optical rotations due to the concentration of the target component in urine and the interference component from the light intensity received by the light receiving means according to the plurality of magnetic field strengths and the plurality of magnetic field strengths by the magnetic field applying means. Calculating the concentration of the target component from the optical rotation measured at the first wavelength and the second wavelength using a predetermined optical rotation ratio of the target component and the interference component at the first wavelength and the second wavelength. ,
It is an object of the present invention to provide a urine testing apparatus that can be attached to a high-precision warm water flush toilet seat or the like that is less affected by interfering substances and the like.

According to a third aspect of the present invention, in addition to the second aspect of the invention, light from two sets of light emitting means for emitting light of only the components of the first and second wavelengths in the specific polarization direction is provided. Is configured to be received by one light receiving unit,
It is possible to provide a urine test apparatus which can be attached to a warm water flush toilet seat having a small number of components.

According to a fourth aspect of the present invention, there is provided a urine collecting portion having a concave shape and a reflective material disposed on an end face in a nozzle for receiving urine, comprising only a component in a specific polarization direction of the first wavelength and the second wavelength. Two sets of light emitting means for emitting light, a magnetic field applying means for applying a magnetic field to the light from the light emitting means, and a specific polarization direction of the light reflected by the reflector from the light emitting means and passing through the urine and the magnetic field applying means And a target component concentration in urine from the light intensity received by the light receiving means according to the plurality of magnetic field strengths and the plurality of magnetic field strengths by the magnetic field applying means. Optical rotation measured at the first and second wavelengths by measuring the sum of the optical rotations due to the interfering component and using a predetermined optical rotation ratio between the target component and the interfering component at the first and second wavelengths. From the concentration of the target ingredient By calculating the above, it is possible to provide a urine testing apparatus that can be attached to a hot water flush toilet seat or the like that can adopt a configuration that is highly accurate with little influence of interfering substances and is convenient for exchanging and cleaning the urine reservoir. is there.

According to a fifth aspect of the present invention, in addition to the fourth aspect of the present invention, light from two sets of light emitting means that emits only light having a specific polarization direction of the first wavelength and the second wavelength. Is configured to be received by one light receiving unit,
It is possible to provide a urine test apparatus which can be attached to a warm water flush toilet seat having a small number of components.

According to the sixth aspect of the present invention, the optical rotation ratio between the target component and the interfering component is calculated using the optical rotation ratio between urine sugar and urine protein, which are the main optical rotation components in urine. Accordingly, it is possible to provide a urine test apparatus which can be attached to a warm water flush toilet seat or the like which can measure urine sugar level and urine protein with high accuracy.

According to a seventh aspect of the present invention, the optical rotation ratio of the target component and the interfering component is obtained by overweighting the optical rotation ratio of urine sugar and other urinary optical rotation substances by an average discharge concentration ratio. By setting the optical rotation ratio to the above, it is possible to provide a urine test apparatus that can be attached to a warm water washing toilet seat or the like that can measure with higher accuracy that can also suggest the influence of other optical rotation components.

The invention according to claim 8 is characterized in that the optical rotation obtained by overaveraging the optical rotation of other urinary optical rotation substances with an average discharge concentration ratio is changed according to age, sex, and the like. Also, it is possible to provide a urine test apparatus which can reduce the influence of interfering components due to individual differences and which can be attached to a warm water flush toilet seat or the like which can measure urine sugar level and urine protein with high accuracy.

According to the ninth aspect of the present invention, two sets of light receiving means and two sets of light emitting means are respectively arranged in the horizontal direction with respect to the ground, so that component dispersion on the optical path of light of two wavelengths due to precipitation or the like. It is possible to provide a urine test apparatus which can be attached to a warm water flush toilet seat or the like which can measure urinary sugar level and urine protein with high accuracy.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a urine test apparatus incorporated in a warm water flush toilet seat according to a first embodiment of the present invention.

FIG. 2 is a graph showing qualitative characteristics of the optical rotation of the urine component.

FIG. 3A is a top view showing the configuration of the urine test nozzle, and FIG.

FIG. 4 is a block diagram showing an example of the control block.

FIG. 5A is a top view showing the configuration of a urine test nozzle, and FIG.

FIG. 6A is a top view showing another configuration of the urine test nozzle, and FIG.

FIG. 7A is a top view showing the configuration of the urine test nozzle, and FIG.

FIG. 8 is a graph showing qualitative characteristics of the representative interference component.

[Explanation of symbols]

 5 Urine test nozzle 25 Magnetic field marking circuit (magnetic field applying means) 51 Light emitting unit (light emitting unit) 52 Light receiving unit (light receiving unit) 55 Urine reservoir 551 Reflector 522 Faraday coil (magnetic field applying unit)

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Miki Ueda 1006 Kazuma Kadoma, Osaka Pref. Matsushita Electric Industrial Co., Ltd. (72) Inventor Toshiaki Miyachi 1006 Odaka Kadoma Kadoma, Osaka Pref. Terms (reference) 2G045 AA16 AA36 CB03 DA31 FA11 GC30 JA01 2G059 AA01 BB13 CC16 DD12 EE01 EE05 EE11 GG01 GG04 JJ19 KK01 LL04 MM03 MM05 PP04

Claims (9)

[Claims] 1. A light emitting means for emitting light having only a component having a specific polarization direction of a first wavelength and a second wavelength; a magnetic field applying means for applying a magnetic field to light from the light emitting means; Light receiving means for receiving a component of light having passed through the magnetic field applying means in a specific polarization direction; and for each of the first wavelength and the second wavelength, a plurality of magnetic field strengths and a plurality of magnetic field strengths by the magnetic field applying means. In accordance with the above, the sum of the optical rotation due to the concentration of the target component in urine and the interfering component is measured from the light intensity received by the light receiving means, and the optical rotation of the target component and the interfering component at the preset first and second wavelengths is measured. A urine test apparatus for calculating the concentration of the target component from the optical rotation measured at the first wavelength and the second wavelength using a degree ratio. 2. A urine reservoir formed in a concave shape in a nozzle for receiving urine, two sets of light emitting means for emitting light having a first polarization and a second wavelength in a specific polarization direction, and Magnetic field applying means for applying a magnetic field to the light, and two sets of light receiving means for receiving a component in a specific polarization direction of light passing through the urine and the magnetic field applying means from the light emitting means. The total value of the optical rotations due to the concentration of the target component in urine and the interfering component is measured from the light intensity received by the light receiving means according to the magnetic field strength of the plurality of magnetic fields and the plurality of magnetic field strengths. A urine test apparatus for calculating the concentration of the target component from the optical rotation measured at the first wavelength and the second wavelength using the optical rotation ratio of the component and the interfering component. 3. A urine reservoir formed in a concave shape in a nozzle for receiving urine, two sets of light emitting means for emitting light having a specific polarization direction of a first wavelength and a second wavelength, and two sets of light emitting means; Magnetic field applying means for applying a magnetic field to the light, and a set of light receiving means for receiving a component of a specific polarization direction of the light passing through the urine and the magnetic field applying means from the light emitting means. The total value of the optical rotation due to the concentration of the target component in urine and the interfering component is measured from the light intensity received by the light receiving means according to the magnetic field strength of the plurality of magnetic fields and the plurality of magnetic field strengths, and the first wavelength and the second wavelength set in advance are measured. The first wavelength and the second wavelength are determined by using the optical rotation ratio of the target component and the interference component at the wavelength.
A urine test apparatus for calculating the concentration of the target component from the optical rotation measured at a wavelength. 4. A urine reservoir formed in a concave shape in a nozzle for receiving urine and having a reflective material disposed on an end face thereof, and two sets of light emitting means for emitting light of a specific polarization direction of the first wavelength and the second wavelength. A magnetic field applying means for applying a magnetic field to the light from the light emitting means, and two sets of light receiving means for receiving a component of light having a specific polarization direction reflected from the light emitting means by the reflector and passing through the urine and the magnetic field applying means. And measuring the sum of the optical rotations due to the concentration of the target component in urine and the interference component from the light intensity received by the light receiving means according to the plurality of magnetic field strengths and the plurality of magnetic field strengths by the magnetic field applying means. A urine test apparatus for calculating the concentration of the target component from the optical rotation measured at the first wavelength and the second wavelength using a preset optical rotation ratio of the target component and the interference component at the first wavelength and the second wavelength. 5. A set of urine having a concave shape and a reflective material disposed on an end face thereof in a nozzle for receiving urine, and two sets of light emitting units for emitting light of components having a first polarization and a second wavelength in a specific polarization direction. Means, a magnetic field applying means for applying a magnetic field to the light from the light emitting means, and a set of light receiving a component of a specific polarization direction of the light reflected by the reflector from the light emitting means and passing through the urine and the magnetic field applying means. A light receiving means, and the combined value of the optical rotations due to the concentration of the target component in urine and the interference component from the light intensity received by the light receiving means according to the plurality of magnetic field strengths and the plurality of magnetic field strengths by the magnetic field applying means. Urine test which measures and calculates the concentration of the target component from the optical rotation measured at the first wavelength and the second wavelength using a preset optical rotation ratio of the target component and the interference component at the first wavelength and the second wavelength. apparatus. 6. The urine test apparatus according to claim 1, wherein the optical rotation ratio between the target component and the interfering component is the optical rotation ratio between urine sugar and the protein. 7. The method according to claim 1, wherein the optical rotation ratio between the target component and the interfering component is defined as an optical rotation ratio of the optical rotation of urine sugar and the other urinary optical rotation substance, which is a weighted average of the optical emission concentrations. The urine test apparatus according to any one of 1 to 5. 8. The urinalysis apparatus according to claim 7, wherein the optical rotation obtained by overaveraging the optical rotations of other urinary optical rotation substances with an average emission concentration ratio is changed according to age, sex, and the like. 9. The urine test apparatus according to claim 2, wherein two sets of light receiving means or two sets of light emitting means are respectively arranged in a horizontal direction with respect to the ground.