Disclosed is a system and method for using a digital measuring device to install a structure. For example, the system can be used to install hurricane shutters over a window or door of a dwelling. Alternatively, the system can be used to install decorative shutters, shelving, or window treatments. Other example will be readily apparent to those skilled in the art. The present system is beneficial in any situation where taking accurate measurements is critical to the proper installation of a structure. The system employs a digital measuring device that wirelessly communicates with a mobile computing device. In one embodiment, the measuring device is a tape measure and the mobile computing device is a phone or table computer. The mobile computing device is preferably used to demonstrate to the user what measurements need to be taken. After the user takes the required measurements, the accuracy and sufficiency of the measurements are thereafter confirmed via the mobile computing device.

A length measuring device includes a hook (380) to which a ring of the tape tip is hooked and retained, and the hook (380) includes a first hook (380-1) and a second hook (380-2) provided on both sides of an outlet perpendicularly to each other, in which, when the ring at a leading end of the tape tip is hooked with the first hook or the second hook, a surface of the first hook or the second hook is brought into contact with a rectangular inner peripheral surface of the fastening hole (305), such that the tape tip is retained perpendicularly to the first hook or the second hook.

A tape rule assembly includes a linear optical encoder for sensing human-readable graduations of length disposed on a surface of a tape, without requiring any other machine-readable indicia to be present on the tape. The optical encoder includes two optical sensors disposed in a sensor holder pivotably disposed in the tape rule housing and configured to be displaced relative to one another in the housing along both the x axis and the z axis, a set of intersecting x, y and z axes being defined relative to a tape exit in the tape rule housing.

A tape rule assembly includes a linear optical encoder for sensing human-readable graduations of length disposed on a surface of a tape, without requiring any other machine-readable indicia to be present on the tape. The optical encoder includes two optical sensors disposed in a sensor holder pivotably disposed in the tape rule housing and configured to be displaced relative to one another in the housing along both the x axis and the z axis, a set of intersecting x, y and z axes being defined relative to a tape exit in the tape rule housing.

In one embodiment, a method includes writing, using a magnetic head, a set of parallel shingled tracks onto a magnetic recording tape using specified drive parameters, changing one of the specified drive parameters, reading a set of selected data tracks on the magnetic recording tape using the changed drive parameter, changing a lateral head position while reading the set of selected data tracks using the changed drive parameter, comparing track error rates observed during reading at the different lateral head positions, selecting a reader offset value based on the comparing, and performing a further action using the selected reader offset value.

The present disclosure provides a distance measuring device configured to measure a distance between an initial position and a target position, the distance measuring device includes: a marking assembly configured to generate a mark on the initial position as a first measuring datum and a measuring structure configured to measure the distance between the initial position and the target position according to the first measuring datum. The present disclosure further provides a distance measuring method.

The present disclosure provides a distance measuring device configured to measure a distance between an initial position and a target position, the distance measuring device includes: a marking assembly configured to generate a mark on the initial position as a first measuring datum and a measuring structure configured to measure the distance between the initial position and the target position according to the first measuring datum. The present disclosure further provides a distance measuring method.

The present invention relates to a device for measuring an object, comprising a winder of a measuring element arranged to form a loop about the said object, which has at least one wall and an exit opening arranged to allow the exit of at least one unwound portion of the said measuring element, which is defined between the said exit opening and a distal end of the said measuring element, which is provided with a connecting element that abuts against the said exit opening, and a connecting means being located at a distance d from the said exit opening, characterised in that the said connecting means is located on the said at least one wall, is adjacent to the said exit opening, is presented in the form of a protrusion which extends towards the said distal end, and is arranged to receive the said connecting element in a stationary manner.

A length measuring device includes a hook (380) to which a ring of the tape tip is hooked and retained, and the hook (380) includes a first hook (380-1) and a second hook (380-2) provided on both sides of an outlet perpendicularly to each other, in which, when the ring at a leading end of the tape tip is hooked with the first hook or the second hook, a surface of the first hook or the second hook is brought into contact with a rectangular inner peripheral surface of the fastening hole (305), such that the tape tip is retained perpendicularly to the first hook or the second hook.

A length measuring device and a length measuring system are provided, in which the length measuring device includes a casing, a first rotating portion accommodated in the casing, and rotated with a portion of a circumference thereof being exposed out of the casing and in contact with an object to be measured, a first sensing portion which senses an amount of rotation of the first rotating portion, and a controller which converts the amount of rotation of the first rotating portion into length measurement. Additionally, the length measuring device may further include a second rotating portion coiled with a strip by a plurality of times, and rotated according to the strip being withdrawn or retracted through an outlet formed in the casing, and a second sensing portion which senses an amount of rotation of the second rotating portion, in which the controller may convert the amount of rotation of the second rotating portion into length measurement.