DRMS Cordless (Drilling Resistance Measurement System)
The DRMS Cordless is a device designed to perform simple but precise drilling resistance measurements in stone materials and in mortars. Drill Bit Position & Starting Point
The position of the drill, referred to the surface of the stone (starting point), is always known because it is controlled directly by the software through the
dedicated electronics. The hole depth measured by the system is exactly referred to the surface of target. Force Measurement
The force applied to the target is measured continuously. The measurable force is comprised between 0 and 100 N. ELECTRONIC FEATURES
Data Acquisition Board:
-USB port connection on IBM personal computers and compatibles running Windows
-12 bit of resolution with PGA (Programmable Gain Amplifier). Stepper and rotating motor control
board:
-Programmable parametric values by RS232 connection
-Constant speed PWM control
-High output current (Max 8 A)
-Encoder to control speed and position. Precision strain gage amplifier (Gain =100). SOFTWARE FEATURES
The acquired data are transmitted, during the test, to a PC through the USB serial data connection. The software,
developed with LabVIEW™ (National Instruments), has many features related to the graphic data representation,
loading and saving data files from the archive. Some important features are the following:
-Complete test management
-Graph of the force and torque against depth
-Mobile averaging of acquired data
-Possibility to show up to 6 test files together
-Possibility to calculate the average curve relative to different test
-Printing of calculated data
-Exporting data in text format
-Direct data input to the standard database.