●DM : Drilling Monitor
Do you know what to do when constructing a tall building such as skyscraper
or highrise condominiums?
First excavate the ground, pour concrete into the hole, and make a base foundation.
After this work, full-scale construction will begin.
When excavating a hole, the accurate measurement of the hole inclination, the hole depth and
the hole surface by using ultrasonic is necessary. DM is used for the measurement.
<Why ultrasonic?>
One of the drilling processes is to inject water mixed with a slurry (Bentonite, Polymer, etc.) to prevent collapsing of wall surface.
This cannot be measured using radar, infrared, CCD camera, etc.
For the reason, ultrasonic is used for the measurement.