TQC DC9000 Hull Roughometer

Introduction

The Dutch TQC DC9000 hull surface roughness measuring instrument is a compact system to measure the average roughness value of maritime navigation hulls. The sensor has three anti-skid wheels and a carbide stylus that moves horizontally on the hull, collecting 12 test values ​​per group. Statistics, time/date and average roughness of each series of positions are automatically calculated and stored inside the instrument and can be connected to a computer via a USB cable.

Specifications

Applications

It goes without saying that surface roughness measurement and control play an important role in ship operating costs. Increased hull roughness is caused by corrosion and/or biological fouling. Proper maintenance and correct application of high-end antifouling coatings can effectively reduce surface roughness, which will save fuel consumption and CO2 emissions. For this reason, hull roughness measurements are carried out during berthing at shore and at sea.

Actual pictures

Measurement principle

When the DC9000 hull surface roughness measuring instrument measures the surface roughness of a workpiece, the sensor is placed on the measured surface of the workpiece. The driving mechanism inside the instrument drives the sensor to slide along the measured surface at a constant speed. The sensor senses the surface roughness through the built-in sharp stylus. The roughness of the measured surface is measured. At this time, the roughness of the measured surface of the workpiece causes the stylus to move. This displacement changes the inductance of the sensor inductor coil, which is proportional to the measured surface roughness at the output end of the phase-sensitive rectifier. The analog signal enters the data acquisition system after amplification and level conversion.

Steps

Dutch TQC DC9000 hull surface roughness measuring instrument This instrument can be operated with one hand, and the operation is displayed on an intuitive illuminated menu by gently pushing the dial switch. The hand strap is available to the user when needed. The sensor is compact and equipped with a set of LED indicators. Due to inconvenience during operation, it may not be possible to observe the control unit. When needed, the sensor can be quickly attached to the operator via an emergency device.

Take you into the Dutch TQC

Sensors x1, Control Unit x1

[Note] Because the manufacturer's packaging may be updated or upgraded, the detailed packaging list shall be subject to the latest standard configuration of the manufacturer.