A contamination monitor has measurement distance notice and contamination prevention function

摘要

The present invention relates to a contamination measurement device having measurement interval notification and contamination prevention functions. The contamination measurement device enables a user to obtain reliable measurement vales all the time by maintaining a distance of 10 mm between a bottom surface of a contamination measurement device having a detection unit and a surface of an object to be measured and, at the same time, can surely prevent the bottom surface as the detection unit of the contamination measurement device from being contaminated. The contamination measurement device comprises: elastic support legs which are vertically installed in corner units of the bottom surface of the contamination measurement device and elastically support the contamination measurement device to be in a horizontal position; two laser distance measurement units which are installed in a diagonal direction on the outsides on both lateral sides of the contamination measurement device facing each other, measure the distance between the bottom surface of the contamination measurement device and the outer surface of the object to be measured, and transmit values of the measurement; a proper distance display lamp which is installed on an upper side of the contamination measurement device and displays that the distance between the bottom surface of the contamination measurement device and the outer surface of the object to be measured is a distance of measurement reliability; an improper distance display lamp which is installed on the upper side of the contamination measurement device and displays that the distance between the bottom surface of the contamination measurement device and the outer surface of the object to be measured is not the distance of measurement reliability; and a control unit which is electrically connected to the two laser distance measurement units, the proper distance display lamp, and the improper distance display lamp and controls flashing operation of the proper distance display lamp and the improper distance display lamp based on the measurement values received from the laser distance measurement units.