| 摘要 |
<p>The present invention relates to a water quality measuring instrument. According to the present invention, a water quality measuring instrument comprises: a light emitting part with a light emitting element; a light receiving part separated from the light emitting part, and having a sensor measuring the intensity of the light output from the light emitting part and transmitted to the light receiving part; and glasses positioned on the light emitting part and the light receiving part, allowing the light emitted from the light emitting part to pass therethrough, and having one surfaces touching water and the other surfaces attached to the light emitting part or the light receiving part so that the light emitting part and the light receiving part can be blocked from the water, wherein each of the surfaces touching the water has nano-sized protrusions to have a hydrophobic property. Therefore, the water quality measuring instrument according to the present has the glasses of which the surfaces touching the water can be prevented from being contaminated, thereby preventing accuracy in measuring water quality from being deteriorated.</p> |
