PMX amplifier improves efficiency and quality in gypsum board production

Real-time computation of board thickness and width using PMX

Working with Weizhao Technology, a Chinese industrial automation and control specialist, a comprehensive solution comprising laser displacement sensors, HBM’s PMX measuring amplifier system along with data acquisition and control system and visualization software was developed.

Four laser displacement sensors were installed in the production line to measure the thickness and width of the gypsum board product. HBM’s PMX acquires displacement signals and ensures substantially improved quality through real-time computation of thickness and width. The amplifier system is fully integrated with the production environment. Results are transferred to a central control system with HMI via Ethernet so that production information such as batch numbers and whether products meet specifications can be recorded.

The advantages of using PMX:

• Production efficiency has been increased leading to reduced labor with associated cost savings.
• The synchronization system for monitoring thickness and width ensures improved product quality.
• The PMX features a powerful computation function and virtual real-time channels.
• High measurement accuracy and repeatability is obtained with the PMX’s 24-bit A/D conversion to avoid any measuring errors caused by human factors.
• Production output can easily be increased because the PMX features quick data acquisition giving a highly precise, reliable and consistent stream of data.
• The PMX features a LabVIEW* driver simplifying integration into automation systems.
• Alarms alert operators when the measuring data is out of specified tolerance while data traceability is simplified.

* LabVIEW is a trademark of National Instruments Corporation

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