Digital evaluation instrument
The utility model discloses a digital evaluation instrument which comprises a base, a supporting rod is fixedly arranged on the base, a cross rod is fixedly arranged at the top end of the supporting rod, a first vertical plate and a second vertical plate are arranged at the lower end of the cross ro...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Online-Zugang: | Volltext bestellen |
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| Zusammenfassung: | The utility model discloses a digital evaluation instrument which comprises a base, a supporting rod is fixedly arranged on the base, a cross rod is fixedly arranged at the top end of the supporting rod, a first vertical plate and a second vertical plate are arranged at the lower end of the cross rod in the horizontal direction in an aligned and spaced mode, an infrared emission grating is arranged on the first vertical plate, and a light emitting grating is arranged on the second vertical plate. The second vertical plate is provided with infrared receiving gratings opposite to the infrared emitting gratings at intervals, a monitoring device is fixedly arranged between the second vertical plate and the supporting rod, the monitoring device comprises a shell, a display screen is fixedly arranged on the shell, a loudspeaker is arranged below the display screen, and the loudspeaker is connected with the second vertical plate. An adjusting key is arranged adjacent to the loudspeaker, and a laser distance measurin |
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