A calibration block for calibrating a touch probe includes a calibration block body forming a bored hole providing a concave measurement surface, and a three dimensional object protruding from the calibration block body and providing a convex measurement surface, wherein the convex measurement surface provides opposing measurement contact points in at least two dimensions.

A calibration block for calibrating a touch probe includes a calibration block body forming a bored hole providing a concave measurement surface, and a three dimensional object protruding from the calibration block body and providing a convex measurement surface, wherein the convex measurement surface provides opposing measurement contact points in at least two dimensions.

A contour gauge may include a fixture with an opening and a first contact on a surface of the fixture. A lacing fixture may be configured to at least partially cover the opening of the fixture. A second contact may be on the lacing fixture. The second contact may correspond to the first contact on the fixture. The fixture may be made from a translucent or transparent material. The first contact may be an electrical contact. The second contact may be a pressure sensitive switch. An output panel including a light may be present on the lacing fixture. The fixture may be made of polymethyl methacrylate.

A contour gauge may include a fixture with an opening and a first contact on a surface of the fixture. A lacing fixture may be configured to at least partially cover the opening of the fixture. A second contact may be on the lacing fixture. The second contact may correspond to the first contact on the fixture. The fixture may be made from a translucent or transparent material. The first contact may be an electrical contact. The second contact may be a pressure sensitive switch. An output panel including a light may be present on the lacing fixture. The fixture may be made of polymethyl methacrylate.

A device for measuring a path under load of a first part that is in motion relative to a second part. The device includes an active telescopic bar and a connector. The telescopic bar includes a scale to measure the length of the bar, a coupler to ball link at each end of the bar, and a force sensor to measure the force applied to the bar along its longitudinal axis. The connector links each end of the bar to the first and second part, respectively. The spatial components of the force applied to one of the connector are measured. A measuring method utilizing the device.

A device for measuring a path under load of a first part that is in motion relative to a second part. The device includes an active telescopic bar and a connector. The telescopic bar includes a scale to measure the length of the bar, a coupler to ball link at each end of the bar, and a force sensor to measure the force applied to the bar along its longitudinal axis. The connector links each end of the bar to the first and second part, respectively. The spatial components of the force applied to one of the connector are measured. A measuring method utilizing the device.

An optical calibration system including a calibration module, a light source, an optical sensing device and a calculation module is provided. The calibration module includes a calibration plane and a plurality of calibration structures between the calibration plane and the light source, wherein the calibration structures are disposed at predetermined calibration positions. The light source projects a linear light section toward the calibration module. The optical sensing device senses reflected light from the calibration plane and the calibration structures reflecting the linear light section to generate a sensed frame. The calculation module calculates positions of gravity centers of a plurality of calibration points in the sensed frame corresponding to the calibration structures.

An apparatus for facilitating the rapid mounting of fence boards to fence posts includes a rail having a tongue projecting perpendicularly from one end thereof; and a board support assembly slidably disposed on the rail, the board support assembly including a carriage slidably mounted on the rail, a carriage lock for selectively fixing the carriage at a desired location along the rail, and a hook depending from the carriage below the tongue for temporarily supporting one end of a board to be mounted to a post. The subject apparatus may be hung from a first fence board by the tongue and then used to support an end of a second fence board within the cradle a desired distance below, and in substantially coplanar alignment with, the first board for mounting to a post.

An apparatus for facilitating the rapid mounting of fence boards to fence posts includes a rail having a tongue projecting perpendicularly from one end thereof; and a board support assembly slidably disposed on the rail, the board support assembly including a carriage slidably mounted on the rail, a carriage lock for selectively fixing the carriage at a desired location along the rail, and a hook depending from the carriage below the tongue for temporarily supporting one end of a board to be mounted to a post. The subject apparatus may be hung from a first fence board by the tongue and then used to support an end of a second fence board within the cradle a desired distance below, and in substantially coplanar alignment with, the first board for mounting to a post.