Robots Enter Fukushima Reactors, Detect High Radiation

The Associated Press is reporting that two PackBot ground robots from iRobot have entered Unit 1 and Unit 3 of the crippled Fukushima nuclear power plant and performed readings of temperature, oxygen levels, and radioactivity. The data from the robots, the first measurements inside the reactors in more than a month since a massive earthquake and tsunami damaged the plant, revealed high levels of radioactivity -- too high for humans to access the facilities. The remote-controlled robots entered the two reactors over the weekend. Details of the mission -- such as what areas of the reactors the robots inspected and from where they were operated -- are still scarce, but Tokyo Electric Power Co. (TEPCO), the plant's operator, said that the robots opened and closed "double doors and conducted surveys of the situation" inside the buildings.

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ST Robotics Develops the Workspace Sentry for Collaborative Robotics

ST Robotics Develops the Workspace Sentry for Collaborative Robotics

The ST Robotics Workspace Sentry robot and area safety system are based on a small module that sends an infrared beam across the workspace. If the user puts his hand (or any other object) in the workspace, the robot stops using programmable emergency deceleration. Each module has three beams at different angles and the distance a beam reaches is adjustable. Two or more modules can be daisy chained to watch a wider area. "A robot that is tuned to stop on impact may not be safe. Robots where the trip torque can be set at low thresholds are too slow for any practical industrial application. The best system is where the work area has proximity detectors so the robot stops before impact and that is the approach ST Robotics has taken," states President and CEO of ST Robotics David Sands.