The hardness of a rail after the rail having a temperature equal to or higher than an austenite region temperature is forcibly cooled in a cooling facility is predicted. A plurality of sets of data for learning composed of a cooling condition data set and output data of hardness are acquired using a model that performs computing by using a cooling condition data set having at least a surface temperature of the rail before the start of cooling and the operating conditions of the cooling facility as input data and the hardness inside the rail after the forced cooling as output data.

A device of determining pipes includes a memory unit, a processing unit and a communication interface, wherein the processing unit is connected to the memory unit and the communication interface. The memory unit has stored pipe names, reference pipe outside diameter values and orders of the pipe names corresponding to the reference pipe outside diameter values. The processing unit receives an outside diameter measuring data of a pipe, compares the outside diameter measuring data with the reference pipe outside diameter values, selects the pipe name corresponding to the reference pipe outside diameter value same as the outside diameter measuring data, and generates at least one the pipe name that matches the outside diameter measuring data according to the selected order of the pipe name. The communication interface outputs the pipe name that matches the outside diameter measuring data.

A device of determining pipes includes a memory unit, a processing unit and a communication interface, wherein the processing unit is connected to the memory unit and the communication interface. The memory unit has stored pipe names, reference pipe outside diameter values and orders of the pipe names corresponding to the reference pipe outside diameter values. The processing unit receives an outside diameter measuring data of a pipe, compares the outside diameter measuring data with the reference pipe outside diameter values, selects the pipe name corresponding to the reference pipe outside diameter value same as the outside diameter measuring data, and generates at least one the pipe name that matches the outside diameter measuring data according to the selected order of the pipe name. The communication interface outputs the pipe name that matches the outside diameter measuring data.

A testing apparatus includes a support unit that supports a lower surface side of a test piece, a pressing unit having an indenter that presses the test piece supported by the support unit, a drive unit that raises and lowers the pressing unit, a load measurement instrument that measures a load generated when the indenter presses the test piece supported by the support unit, and a controller that controls raising and lowering of the pressing unit. The controller is configured to be capable of stopping movement of the indenter when a measurement value of the load measurement instrument has turned from a rise to a fall after the indenter has started pressing of the test piece.

A system and method for applying force to at least one device at least one force actuator including a processor accessing at least one description of the at least one device, the processor creating command information based at least on the at least one description, and a controller accessing the command information, the controller creating at least one motion command based on the command information, the controller issuing the at least one motion command, the motion command enabling the testing of the at least one device by controlling the at least one force actuator based on the at least one motion command.

A system and method for applying force to at least one device at least one force actuator including a processor accessing at least one description of the at least one device, the processor creating command information based at least on the at least one description, and a controller accessing the command information, the controller creating at least one motion command based on the command information, the controller issuing the at least one motion command, the motion command enabling the testing of the at least one device by controlling the at least one force actuator based on the at least one motion command.

A system and method for applying force to at least one device at least one force actuator including a processor accessing at least one description of the at least one device, the processor creating command information based at least on the at least one description, and a controller accessing the command information, the controller creating at least one motion command based on the command information, the controller issuing the at least one motion command, the motion command enabling the testing of the at least one device by controlling the at least one force actuator based on the at least one motion command.

A system and method for applying force to at least one device at least one force actuator including a processor accessing at least one description of the at least one device, the processor creating command information based at least on the at least one description, and a controller accessing the command information, the controller creating at least one motion command based on the command information, the controller issuing the at least one motion command, the motion command enabling the testing of the at least one device by controlling the at least one force actuator based on the at least one motion command.

To provide a three-dimensional hardness distribution measurement method with better measurement accuracy. The method is a three-dimensional hardness distribution measurement method including and repeating: cutting evenly a surface of a member to be measured; imaging the surface having been cut; and pushing an indenter for a hardness test into a plurality of points on the surface having been imaged. In the method, a cutting depth of the surface is controlled, in the cutting, to a predetermined constant amount, and indentation depths of the indenter at the plurality of points are controlled, in the pushing, to a predetermined constant amount.

To provide a three-dimensional hardness distribution measurement method with better measurement accuracy. The method is a three-dimensional hardness distribution measurement method including and repeating: cutting evenly a surface of a member to be measured; imaging the surface having been cut; and pushing an indenter for a hardness test into a plurality of points on the surface having been imaged. In the method, a cutting depth of the surface is controlled, in the cutting, to a predetermined constant amount, and indentation depths of the indenter at the plurality of points are controlled, in the pushing, to a predetermined constant amount.