Controls & Instrumentation

Power Coupling Units (PCUs) can inductively transfer dc signals across air gaps to interface with solenoids, digital or analog sensors, switches, relays, and actuators on rotary indexing tables or moving equipment. Sensor Coupling Units (SCUs) take it a step further — transferring power and data simultaneously to rotating or moving sensors....More

Hirschmann GDM-series type A valve connectors are available either with electronic inserts with LED function display and/or circuitry to protect downstream electronics from voltage surges or electromagnetic interference. They facilitate both reliable power supplies and secure data transmission for components such as pressure transducers, temperature sensors, and flow monitors. Both designs have integrated strain relief and comply with UL 2238....More

WB61 tape extension sensors measure strokes to 4 m, yet feature a compact housing. They provide three analog and three digital outputs (SSI, CANopen, CAN, SAE J1939), the option of redundant design, and nonlinearity of ±0.10%. They work best where multiple pulleys are required. Stainless steel measuring tape is not liable to break when using several pulleys, for adherence to strict safety requirements for cranes....More

To demonstrate the characteristics of a motion control system, we will examine test results of a valve-controlled cylinder in a closed-loop, positional servomechanism, represented below. Otherwise known as a torque cell, the mechanism was designed for special electrohydraulic motion-control training programs....More