Some embodiments of the invention relate to a handheld measuring aid for use in a system—having a station for position and orientation determination of the handheld measuring aid—for surveying an object surface. the handheld measuring aid has in this case on a body, visual markings which are arranged in a defined spatial relationship, forming a pattern, on the body in a marking region, a measuring probe, which is arranged on an orifice of the body in a defined spatial relationship in relation to the pattern, for the object surface, an operating element, an electronic circuit for generating a measurement triggering signal—occurring as a function of an actuation of the operating element—and wireless communication means for transmitting the measurement triggering signal to the station.

A microscope system includes a microscope body, an XY stage mounted on the microscope body and including a stage configured to place a slide as an observation target and move in an X-axis direction and a Y-axis direction perpendicular to each other, and an XY two-dimensional scale plate fixed to the stage. The XY two-dimensional scale plate is provided with a first mark that provides axis information in the X-axis direction throughout a movable range of the stage in the Y-axis direction and a second mark that provides axis information in the Y-axis direction throughout a movable range of the stage in the X-axis direction, which are used to recognize X- and Y-coordinates of the stage.

A microscope system includes a microscope body, an XY stage mounted on the microscope body and including a stage configured to place a slide as an observation target and move in an X-axis direction and a Y-axis direction perpendicular to each other, and an XY two-dimensional scale plate fixed to the stage. The XY two-dimensional scale plate is provided with a first mark that provides axis information in the X-axis direction throughout a movable range of the stage in the Y-axis direction and a second mark that provides axis information in the Y-axis direction throughout a movable range of the stage in the X-axis direction, which are used to recognize X- and Y-coordinates of the stage.

A method and an apparatus for calibrating a tool in a flange coordinate system of a robot are disclosed. The method includes: acquiring a rotation angle of each joint of a robot when a to-be-calibrated tool fasted on an end joint mounting portion of the robot moves to a central point of the to-be-calibrated tool and overlaps with a calibration reference point acquiring calibration information of a central point of a calibrated tool in a flange coordinate system of the robot and completing calibration of the central point of the to-be-calibrated tool in the flange coordinate system of the robot according to the calibration information of the central point of the calibrated tool and a rotation angle of the to-be calibrated tool.

A method and an apparatus for calibrating a tool in a flange coordinate system of a robot are disclosed. The method includes: acquiring a rotation angle of each joint of a robot when a to-be-calibrated tool fasted on an end joint mounting portion of the robot moves to a central point of the to-be-calibrated tool and overlaps with a calibration reference point acquiring calibration information of a central point of a calibrated tool in a flange coordinate system of the robot and completing calibration of the central point of the to-be-calibrated tool in the flange coordinate system of the robot according to the calibration information of the central point of the calibrated tool and a rotation angle of the to-be calibrated tool.

There is provided a computer-readable non-transitory recording medium storing a program that causes a computer to execute a procedure including: storing, on a memory, information for representing a correspondence between a reference position of a real first measurement device that is present in a predetermined space, and a reference position of a virtual second measurement device that is three-dimensionally visualized in the predetermined space and is able to measure a virtual object that is three-dimensionally visualized in the predetermined space; calculating two end positions of the virtual second measurement device corresponding to two end positions of the real first measurement device applied to the virtual object, by referencing the information stored on the memory; calculating a distance between the two ends of the virtual second measurement device, based on the two end positions of the virtual second measurement device calculated; and displaying, on a predetermined device, the distance calculated.

A motion of a model including a joint, at least one body part that rotates with respect to the joint, and a plurality of inertial sensors attached to each body part and measuring a rotational motion of the body part is tracked by obtaining a rotational matrix of a sensor coordinate system fixed to each of the inertial sensors with respect to an inertial coordinate system fixed to ground, by using a signal measured by the inertial sensor attached to each body part; obtaining a rotational matrix of the sensor coordinate systems with respect to a body part coordinate system fixed to each body part, by using an obtained rotational matrix value of the sensor coordinate system; obtaining a rotational matrix of each body part coordinate system with respect to the inertial coordinate system, by using a calculated rotational matrix of the sensor coordinate systems; and calculating a joint variable with respect to each body part, by using a calculated rotational matrix of the body part coordinate system.

A motion of a model including a joint, at least one body part that rotates with respect to the joint, and a plurality of inertial sensors attached to each body part and measuring a rotational motion of the body part is tracked by obtaining a rotational matrix of a sensor coordinate system fixed to each of the inertial sensors with respect to an inertial coordinate system fixed to ground, by using a signal measured by the inertial sensor attached to each body part; obtaining a rotational matrix of the sensor coordinate systems with respect to a body part coordinate system fixed to each body part, by using an obtained rotational matrix value of the sensor coordinate system; obtaining a rotational matrix of each body part coordinate system with respect to the inertial coordinate system, by using a calculated rotational matrix of the sensor coordinate systems; and calculating a joint variable with respect to each body part, by using a calculated rotational matrix of the body part coordinate system.

A method for configuring a device for non-destructive testing of a mechanical part, the device including an optical motion-tracking system, a non-destructive testing probe fixedly linked to a first rigid body, and a pointing device, includes steps of: learning of an origin and of axes of an examination area of the surface of the mechanical part using the pointing device, in a coordinate system linked to the optical motion-tracking system, so as to define a coordinate system linked to the examination area, learning of an origin and of axes of an emitter and receiver surface, called active surface, of the probe using the pointing device, in a coordinate system linked to the first rigid body of the probe, and determination of the position and of the orientation of the active surface of the probe, in the coordinate system linked to the examination area.

A position measuring device and a position measuring method for accurately measuring a position of a movable member using a plurality of linear scales are provided. The position measuring device comprises a first linear scale elongated in a first direction, a second linear scale elongated in the first direction and separated from the first linear scale, and a head structure including a first scale head and a second scale head that are spaced apart from each other, wherein the head structure reads the first linear scale or the second linear scale while moving in the first direction, wherein the first scale head and the second scale head are activated or deactivated opposite to each other.