33results about "Length measurement chains" patented technology

A digital measuring instrument includes a housing containing a measuring line, a rotatable drum engaging the line whereby movement of the line causes rotation of the drum, a storage spool mounted in the housing for storing the line, a crank assembly for rotating the storage spool for winding the measuring line about the storage spool, and a rotatable disc that rotates simultaneously with the measuring drum. The instrument includes an optical sensor in communication with the rotatable disk for compiling data related to rotation of the disk, and electronic circuitry in communication with the optical sensor for calculating a length of the line drawn from the housing. The housing has a well for receiving the storage spool and a side cover with a slideable lock for covering the well.

A measuring device measures distances via a thin retractable wire with a removable head. Distance is calculated and displayed on a very bright, large LED or other type screen. As the wire is extended, a microprocessor calculates the distance and displays it on its screen. The digital measuring device comprises a housing, a very thin extendable wire, cable or tape, a rotating spool, (from which the wire extends then automatically retracts to), a sensor which measures the amount of wire extended, a microprocessor, a tiny flash drive or other type of memory storage, a microphone / speaker, a large (size of unit) mono or duo chromatic or other type of display screen (LED) and a few buttons and / or a menu driven interface which control functionally. A plurality of removable heads may be attached to the wire for performing different measuring functions.

A measuring device generally comprises a base unit housing an extensible cable; the cable including a free end for placement by a user at a point being measured. The base unit, placed in line of sight of the point, includes: a base; a first carriage rotationally attached to the base about a turn axis; and a second carriage rotationally attached to the first carriage about a pitch axis. Servoed motors rotate the carriages to align them with cable path to the point. The turn angle, the pitch angle and the cable length are measured to determine the point's location. A plurality of points determines a surface. The user uses a programmed PDA with a radio to communicate with the base unit.

A pivoting cable extension arm (2) has a pivot sensor (3). The extension arm is mounted on a swivel frame (4) having a swivel sensor (5). The swivel frame has two tangent sheaves (4A, 4C) that allow a wide pivot range of the extension arm. A cable take-up drum (6) has a range sensor (7) for sensing the length of cable (1) extending from the drum. The three-sensors (3, 5, 7) provide data for computing 3D coordinates of the end of the cable (1) over a wide range of space surrounding the assembly. This allows an object to be measured and modeled in three dimensions by touching the cable end to points on the object and acquiring spatial coordinates of the points.

A measuring device includes a spool mounted in a housing having opposing front and rear ends. A string is wound about the spool, and has an end is attached to a marker located outside the housing. The string winds and unwinds relative to the spool upon rotation thereof. A rocker arm, which carries a first reference mark, is pivotally attached to a support attached to the housing at the front end thereof. The rocker arm carries a second reference mark, which can be aligned with the first reference mark by pivoting the rocker arm. A brake is mounted in the housing, which moves between a first position against the spool inhibiting its rotation, and a second position away from the spool permitting its rotation. The brake is biased for movement in its first position, and a handle is provided for operating the brake.

The present invention provides a partition plate throat width measuring chain bead for a steam turbine, and the measuring chain bead comprises at least more than two global probe heads (1), at least more than two positioning sticks (2) and a measuring device body (3). The global probe heads (1), according to different diameters from small to big or from big to small, each adjacent global probe head (1) of which the center is positioned in the same plane, according to same or different spaces, are arranged in sequence to form a measuring chain, the global probe heads (1) are arranged on the positioning sticks (2) and fixed on the measuring device body (3) through the positioning sticks (2) according to an arrangement way of the global probe head (1). The measuring device is characterized in that the measuring size range is large, the operation is simple, the measuring accuracy is high, and the reading is direct-viewing, flexible and convenient.

An electronic measuring instrument includes a housing, a storage spool rotatably mounted to the housing, and a thin, flexible line provided on the storage spool and extendible from the housing for measuring distances. The storage spool is rotatable in a first direction for unwinding the line from the storage spool and a second direction for winding the line onto the storage spool. The instrument includes a rotatable drum in engagement with said line so that movement of said line causes movement of said rotatable drum. The instrument also includes a sensor, such as an optical sensor, in communication with the rotatable drum for sensing movement of the rotatable drum when unwinding the line from the storage spool and winding the line onto the storage spool, electronic circuitry in communication with the optical sensor for measuring distances based upon the sensed movement of the rotatable drum during unwinding and winding, and a spring-less, manually-operated crank assembly for winding the line onto the storage spool.

A cable length sensor, in particular, a bowden cable displacement sensor, comprising a cable drum, a measuring cable wound on the cable drum and a return device at least lightly pre-tensioned in the start position, wherein the measuring cable may be withdrawn by rotating the cable drum against the force of the return device and by withdrawing the measuring cable the return device may be further tensioned. The return device is arranged in a housing, and coupling means for releasably coupling the return device to the rotating movement of the cable drum are provided so as to permit ready removal and replacement of the return device. Also, the housing may be provided with a sensor element operated from outside the housing for determining the current position of the return device, in particular the at least lightly tensioned starting position of the return device.

A measurement tool for circumference includes at least one disk with a circumference thereof provided with a through hole; a straightedge provided with a fixed post and a plurality of scales, and the fixed post penetrates through the through hole to fix the disk to the fixed post; and a hitching line with one end thereof penetrated by the fixed post, and the other end of the hitching line surrounds the disk or straightens along the straightedge. Thus, a string makes a circle around the circumference, whereby the string is marked an index corresponding to the fixed post, and then the string straightens along the straightedge, and a length of the circumference of the disk is obtained according to relative positions of the scales and the index.

The present invention extends to methods, systems, apparatus, and computer program products related to a cable-based measuring system. The cable-based measuring system includes a cable, comprising an inner cable member configured to move linearly within an outer cable housing. The measuring system also includes a measuring device configured to generate measurement information regarding movement of the inner cable member relative to the outer cable housing using one or more encoders. A computer system receives the measurement information from the measuring device. The measurement information indicates length as a function of time, and represents three orthogonal dimensional measurements of a three-dimensional object. Based on the measurement information, the computer system identifies a length of each dimensional measurement, including a length, a width, and a height of the three-dimensional object. The computer system then initiates creation of a box template sized to accommodate the three-dimensional object and / or updates a database.

Provided is a tool system for including a machine tool configured for machining by the removal of material an object defining a machining surface.

A system for measuring suspension sag in a vehicle, such as a motorcycle, is disclosed. The system includes a measuring device that attaches to a wheel hub, axle, or other component. The system includes a clamp that attaches to a fender or other vehicle component. The device is connected to the clamp by a cord, which extends from and retracts into the device. When a load is placed on the vehicle, the fender may move closer to the hub or axle. Any slack in the cord may be taken up by a spool shaft in the device. A rotary encoder may measure the rotation of the spool shaft, and the measuring device may calculate a change in a linear distance between, for example, the fender and the axle based on the rotation of the spool shaft.

A measurement tool for circumference includes at least one disk with a circumference thereof provided with a through hole; a straightedge provided with a fixed post and a plurality of scales, and the fixed post penetrates through the through hole to fix the disk to the fixed post; and a hitching line with one end thereof penetrated by the fixed post, and the other end of the hitching line surrounds the disk or straightens along the straightedge. Thus, a string makes a circle around the circumference, whereby the string is marked an index corresponding to the fixed post, and then the string straightens along the straightedge, and a length of the circumference of the disk is obtained according to relative positions of the scales and the index.

A depth determination apparatus is described. The depth determination apparatus includes a rotatable reel for receiving a length of line, a free end of the line being adapted to receive a weight, a hollow elongate leader assembly through which the line is played out and retracted, a measuring arrangement for measuring the length of line played out and / or retracted through the hollow elongate leader; and a drive means for at least retracting the line through the hollow elongate leader.

The present invention provides a partition plate throat width measuring chain bead for a steam turbine, and the measuring chain bead comprises at least more than two global probe heads (1), at least more than two positioning sticks (2) and a measuring device body (3). The global probe heads (1), according to different diameters from small to big or from big to small, each adjacent global probe head (1) of which the center is positioned in the same plane, according to same or different spaces, are arranged in sequence to form a measuring chain, the global probe heads (1) are arranged on the positioning sticks (2) and fixed on the measuring device body (3) through the positioning sticks (2) according to an arrangement way of the global probe head (1). The measuring device is characterized in that the measuring size range is large, the operation is simple, the measuring accuracy is high, and the reading is direct-viewing, flexible and convenient.