A distance sensor (1) for estimating a distance to a surface (OS) of an object (O), the distance sensor including a micro electric mechanical system (MEMS) (5), a detection means (30) and a processing device (40). The MEMS comprises a MEMS device (10) having a surface (12), denoted as MEMS sensor surface, to be arranged opposite the surface (OS) of said object (O) and a MEMS driver (20) for generating an ac driving signal to cause the MEMS sensor surface (12) to vibrate. The detection means (30) is to determine a value of a property of a dynamic behavior of the MEMS (5) and the processing device (40) is to estimate an average distance (h) as a measured distance (D2) between the MEMS sensor surface (12) and the surface (Os) of the object (O) based on the determined value for said property.

A distance sensor (1) for estimating a distance to a surface (OS) of an object (O), the distance sensor including a micro electric mechanical system (MEMS) (5), a detection means (30) and a processing device (40). The MEMS comprises a MEMS device (10) having a surface (12), denoted as MEMS sensor surface, to be arranged opposite the surface (OS) of said object (O) and a MEMS driver (20) for generating an ac driving signal to cause the MEMS sensor surface (12) to vibrate. The detection means (30) is to determine a value of a property of a dynamic behavior of the MEMS (5) and the processing device (40) is to estimate an average distance (h) as a measured distance (D2) between the MEMS sensor surface (12) and the surface (Os) of the object (O) based on the determined value for said property.

Stud gap marker tape 10 comprises a strip element 12; and a plurality of gap marks 14, to facilitate stud positioning, to thus facilitate wall building. Preferably a portion or a whole of an underside of the strip element is adhesive, to facilitate sticking the strip element to a plate. Preferably the stud gap marker tape is provided rolled up, as a roll of tape. Disclosure is also provided of an apparatus 501, to make gap marks on a plate, to facilitate stud positioning, to thus facilitate wall building.

Stud gap marker tape 10 comprises a strip element 12; and a plurality of gap marks 14, to facilitate stud positioning, to thus facilitate wall building. Preferably a portion or a whole of an underside of the strip element is adhesive, to facilitate sticking the strip element to a plate. Preferably the stud gap marker tape is provided rolled up, as a roll of tape. Disclosure is also provided of an apparatus 501, to make gap marks on a plate, to facilitate stud positioning, to thus facilitate wall building.

An electrical conduit spacing device to organize spacing of an electrical conduit at a predetermined location, the electrical conduit spacing device including a main body, a plurality of magnetic portions disposed on a first side of the main body and a second side of the main body opposite with respect to the first side to attract the electrical conduit thereto, a plurality of measuring sticks perpendicularly disposed on at least a portion of a bottom surface of the main body with respect to a direction to indicate a distance of a space between the electrical conduit, and another object or surface, and a butterfly nut disposed on at least a portion of the main body to move at least one of the plurality of measuring sticks in response to movement of the butterfly nut.

An electrical conduit spacing device to organize spacing of an electrical conduit at a predetermined location, the electrical conduit spacing device including a main body, a plurality of magnetic portions disposed on a first side of the main body and a second side of the main body opposite with respect to the first side to attract the electrical conduit thereto, a plurality of measuring sticks perpendicularly disposed on at least a portion of a bottom surface of the main body with respect to a direction to indicate a distance of a space between the electrical conduit, and another object or surface, and a butterfly nut disposed on at least a portion of the main body to move at least one of the plurality of measuring sticks in response to movement of the butterfly nut.

A screw thread measurement system and methods may comprise a frame having a reference surface, a carrier coupled to the frame and configured to translate relative to the frame, a dimension measurement system coupled to the carrier and having a thread contact element configured to translate relative to the frame and orthogonally the translation axis of the carrier. The dimension measurement system configured to determine thread dimensions relative to the frame reference surface.

The Rivet Pattern Pitch Gauge is a tool designed to properly space rivets or other fasteners in an aircraft skin repair. The tool consists of a straight edge with measure markings, a row of teeth set at a forty-five degree angle, and a corner that has a half inch radius gauge built in. The tool uses the teeth, which are six times the diameter of the fastener in height and length, to evenly space the fasteners when laying out the aircraft skin repair. It is this spacing coupled with the forty-five degree angled teeth that allow for accurate and quick repair layouts and that differentiate the Rivet Pattern Pitch Gauge from other fastener spacing tools.

The present invention discloses a synchronization method for multi-station data of dynamic coordinate measurement by a workshop measuring and positioning network. The method comprises the following steps of: determining a measuring and positioning space according to the in-situ measurement dimension, selecting locations for placing several transmitters, calibrating external parameters of the transmitters by a reference ruler, and establishing a measurement field; in a communication data packet of a signal processor, attaching local clock information into the angle information of each transmitter; and setting fixed time nodes on a time axis, and synchronizing data of different transmitters to corresponding time nodes so as to realize data synchronization. The present invention improves the conventional static measurement function of the wMPS to a certain dynamic measurement function for expanding the application ranges of the wMPS, and provides a technical support for realization of real-time, high-accuracy and large-scale in-situ industrial coordinate measurement based on wMPS.

The present invention discloses a synchronization method for multi-station data of dynamic coordinate measurement by a workshop measuring and positioning network. The method comprises the following steps of: determining a measuring and positioning space according to the in-situ measurement dimension, selecting locations for placing several transmitters, calibrating external parameters of the transmitters by a reference ruler, and establishing a measurement field; in a communication data packet of a signal processor, attaching local clock information into the angle information of each transmitter; and setting fixed time nodes on a time axis, and synchronizing data of different transmitters to corresponding time nodes so as to realize data synchronization. The present invention improves the conventional static measurement function of the wMPS to a certain dynamic measurement function for expanding the application ranges of the wMPS, and provides a technical support for realization of real-time, high-accuracy and large-scale in-situ industrial coordinate measurement based on wMPS.