Application of Trans Tek LVDT in Mechanical Hands

Application of Trans Tek LVDT in Mechanical Hands

The Trans Tek series 240 DC-DC LVDT has a stroke range of ± 0.05 "to ± 3.0" and is an accurate position sensing sensor equipped with internal support electronics. The sensor is driven by a regulated power supply between 6 and 30 VDC, providing linear DC voltage output within its operating range, with a standard ± 0.5% large nonlinearity throughout the entire stroke.

An industrial robotic arm manufacturer has chosen our 240 series DC LVDT for their products. These robotic arms are used for heavy-duty applications where heat, dust, and vibration are the norm. These sturdy, long-distance machines often appear in the forging, casting, and casting industries. These machines are controlled by operators or programs and can accurately handle complex repetitive movements with loads of up to 7000 kilograms and up to 10 meters. Dangerous materials that are frequently handled include hot steel billets, large molds, ingots, waste, and so on.

Application of Trans Tek LVDT in Mechanical Hands

These machines have four control levels: simple lever, joystick, master-slave pantograph, or full robot control. The control device must be able to move custom tools located at the end of the boom on three axes: yaw, pitch, and roll. Simple lever and joystick control will provide visible results for the operator. This is a low degree of automation control system, similar to hydraulic control on most suspension rods. Furthermore, Action has developed a master-slave pantograph operation that utilizes three Trans Tek 0244-00000 DC-DC LVDTs to sense the operator's arm movements.

The operator sits in the cab connected to the robotic arm, placing their arm in the carefully constructed control center. Accurate pantograph control guides the robotic arm to follow the operator's arm movements. The output signals of the three LVDTs are directly fed into the onboard electronic equipment, which is the main component of the continuous feedback loop for controlling the robot arm. Special load sensing allows operators to 'feel' motion during critical actions such as picking, placing, tilting, or hanging large loads.