A measuring device is provided for measuring an advancement of a cable of a sewer cleaning and/or sewer inspection system. A rotatably mounted magnet is designed such that the advancement of the cable can cause rotations of the at least one rotatably mounted magnet, wherein the magnet follows a movement of the cable in the radial direction during advancement of the cable. A corresponding method is also provided.

A propulsion system is provided for advancing a cable of a sewer cleaning and/or sewer inspection system, comprising a propulsion device, a measuring device for measuring the advancement of the cable, and an evaluation device. The propulsion device and the measuring device are adapted to provide a first and a second measured value of the advancement of the cable independently of one another, and the evaluation device is adapted to form a difference between the first measured value and the second measured value. A control device may be provided which adjusts the advancement based on the determined difference. A correspondingly designed method is also provided.

The present application discloses a module bonding installation apparatus, detection device and detection method, thereby controlling recovery of cushion material through detecting by the detection device a feeding length of the cushion material at a cushion material supply end in a unit time.

A measuring device is provided for measuring an advancement of a cable of a sewer cleaning and/or sewer inspection system. A rotatably mounted magnet is designed such that the advancement of the cable can cause rotations of the at least one rotatably mounted magnet, wherein the magnet follows a movement of the cable in the radial direction during advancement of the cable. A corresponding method is also provided.

Disclosed is a method for determining the distance to a fault location of a power line to be protected in an electric power system, the method including: configuring the power line to be protected into a plurality of segments, obtaining a plurality of line settings separately for each of the plurality of segments configured, and using the line settings obtained to determine a fault location of the power line to be protected, wherein the line settings include at least one of impedance, resistance, reactance, length, compensation factor, angle. Also disclosed is an intelligent electronic device.

A method for determining the length of a heated pressure line for a conveying device for an aqueous urea solution in a motor vehicle from a tank to an injector, wherein the pressure line is electrically heatable and is heated, using ohmic resistance, by the application of a voltage to an electrical conductor led on the pressure line, wherein the length of the pressure line is calculated by the following formula:

[00001]$l_{\mathrm{pressure}\mathrm{line}}=\frac{R_{\mathrm{heating}\mathrm{conductor}}\times A}{\rho }$

where A designates the cross section of the electrical conductor and p the specific electrical resistance of the electrical conductor and R.sub.heating conductor the electrical resistance of the electrical conductor used to heat the pressure line.

A deployable device includes a supporting structure, a deployable structure capable of switching from a configuration wound around a first axis to a configuration deployed according to a second axis substantially at right angles to the first axis, by being deployed by a length defined in a frame of reference of the supporting structure, wherein it further comprises a deployed length control device comprising a sensor and a computer linked to the sensor, a first conductive track electrically linked to the sensor extending on the deployable structure, substantially along the perimeter of the deployable structure, and forming one or more turns of a first coil in the wound configuration, and in that the sensor is configured to measure an electrical parameter from the first electrically conductive track which varies with the deployed length of the deployable structure and the computer is configured to determine the deployed length of the deployable structure.

A method is described to compute and display the line length required to troll a fishing rig at a desired depth. Line lengths and respective line angles measured at the surface are used to calculate an approximation to the actual underwater curve profile of the trolled fishing line, which is used to determine the line length required to troll at a desired depth or to determine the resulting depth for a specified line length. An embodiment is described which requires only a smartphone and software beyond standard trolling fishing equipment. This embodiment uses the embedded sensors of the smartphone to collect fishing line angle measurements. Also described is a method and devices to automatically collect the line angles and line lengths using a wireless fishing line inclinometer device and a wireless line counter, which is especially useful and convenient when software is implemented on a mounted marine electronics unit.

Aspects of the subject technology relate to systems and methods for determining positions of cementing plugs during a cementing process. Systems and methods are provided for determining a length of an optical fiber line deployed into a wellbore for a cementing process, measuring signal intensity data as a function of distance from the optical fiber line, the optical fiber line being attached to a lower cementing plug and an upper cementing plug, the upper cementing plug being attached to the optical fiber line by an attenuation assembly, generating signal intensity profiles based on the signal intensity data as a function of a round trip delay of a light signal in the optical fiber line, and determining positions of the lower cementing plug and the upper cementing plug based on the signal intensity profiles of the optical fiber line.

A modular material tracking system is provided for tracking material stored on and drawn from a reel using a modular system. The modular material tracking system may include a detection element, digital logic components, location receiver, enclosure, analytic components, interface component, sensor module, and plate module. One or more sensors relative to the reel may detect a position indicative of forward or reverse reel rotation. A processor may analyze signals to count rotations of the reel, which is savable in memory. A battery may provide power. The system may also record the time and location associated with rotations. A method for tracking material stored on and drawn from a reel using a modular material tracking system is also provided.