Device for measuring a stretching force on a film, wherein the device has adapted an unwinding station to hold and unwind a spool of stretch film via an unwinding motor, wherein the device further has a first stretching station with a first driven stretch roller and a second driven stretch roller for imparting a predetermined first stretch to the stretch film, and wherein the device has a second stretching station with a third driven stretch roller for imparting a second predetermined stretch to the stretch film, wherein a sensor is provided in the unwinding station in order to measure a release parameter which is indicative of where the stretch film releases from the spool, wherein a processor is provided to calculate a first and second force, needed to obtain respectively the first stretch and second stretch, on the basis of the release parameter and an output of the first, second, third torque meters and the unwinding torque meter.

Device for measuring a stretching force on a film, wherein the device has adapted an unwinding station to hold and unwind a spool of stretch film via an unwinding motor, wherein the device further has a first stretching station with a first driven stretch roller and a second driven stretch roller for imparting a predetermined first stretch to the stretch film, and wherein the device has a second stretching station with a third driven stretch roller for imparting a second predetermined stretch to the stretch film, wherein a sensor is provided in the unwinding station in order to measure a release parameter which is indicative of where the stretch film releases from the spool, wherein a processor is provided to calculate a first and second force, needed to obtain respectively the first stretch and second stretch, on the basis of the release parameter and an output of the first, second, third torque meters and the unwinding torque meter.

The present invention is related to a method for detecting and/or measuring atmospheric accretion on a suspended electrical cable span (2) of overhead power lines, said suspended electrical cable span (2) having a sag (D) and a local tension (H), and being submitted to wind pressure (w.sub.wind), comprising the steps of independently: measuring said sag (D), and optionally measuring the wind pressure (w.sub.wind), over a first time range, measuring the local tension (H) over a second time range,
the results of both steps being complemented and/or combined, so that to allow atmospheric accretion detection and/or measurement.

A tension monitoring device that attaches or clamps onto to a tensioned cargo load securing strap and wirelessly communicates the tension level to the driver via a remote device, such as a mobile smartphone. One or more devices may be installed on a vehicle or trailer to be simultaneously monitoring the tension conditions during transit. The tension signal from the device is received and processed by the mobile smartphone application to display the real-time tension relative to unsafe levels and transmit alerts to the driver when an unsafe or undesired condition occurs. The tension monitoring device includes an electromechanical sensor and microprocessor, powered by a battery, and packaged inside two hinged weatherproof housings for the ability to clamp onto a tensioned cargo strap.

A tension monitoring device that attaches or clamps onto to a tensioned cargo load securing strap and wirelessly communicates the tension level to the driver via a remote device, such as a mobile smartphone. One or more devices may be installed on a vehicle or trailer to be simultaneously monitoring the tension conditions during transit. The tension signal from the device is received and processed by the mobile smartphone application to display the real-time tension relative to unsafe levels and transmit alerts to the driver when an unsafe or undesired condition occurs. The tension monitoring device includes an electromechanical sensor and microprocessor, powered by a battery, and packaged inside two hinged weatherproof housings for the ability to clamp onto a tensioned cargo strap.

A measuring device serves for acquiring measurement values for measuring a tension in a conveying system. The measuring device is designed to guide a conveying member from a first section of the measuring device to a second section of the measuring device, to effect a deflection of the conveying member with regard to a straight-lined connection between the first and the second section and to detect measurement values corresponding to a reaction force according to this deflection. The measuring device includes surfaces for guiding rollers of the conveying member. One of these surfaces is a deflecting surface for deflecting the conveying member. The deflecting surface is formed on a deflecting element of a measuring element, and the reaction force is a force which acts upon the measuring element.

A method can include receiving information associated with a conveyance of equipment in a borehole via a cable; determining cable tension values based at least in part on a model and at least a portion of the information; conveying the equipment in the borehole via the cable; acquiring a cable tension value via one or more sensors; comparing the acquired cable tension value to at least one of the determined cable tension values; and, based at least in part on the comparing, setting a cable tension limit for further conveying of the equipment in the borehole via the cable

A lift assembly includes an article to be lifted between a lowered position and a raised position, a drive element coupled to the article, a power mechanism coupled to the drive element, and a power transfer mechanism coupled between the power mechanism and the drive element. The power transfer mechanism includes control electronics having a first upward limit switch adapted to deactivate the power mechanism when the article is lifted to a first upward height, and a second upward limit switch adapted to deactivate the power mechanism when the article is lifted to a second upward height higher than the first upward height.

A sensing apparatus for yarn feeder may comprise a yarn feeder and a tension controller. The tension controller has an elongated sensing block installed therein, and a horizontal extending board is connected to the sensing block. An operating rod is mounted on a middle upper surface of the extending board at one end and upwardly sticks out of the tension controller to pivotally connect to a tension pulley at the other end. A yarn wound on a winding wheel of the yarn feeder is configured to couple with the tension pulley. At least an impedance sensing piece is attached on a surface of the sensing block, and a deformable hole horizontally penetrates through the sensing block. When the sensing block is pressed or pulled, the tension controller can obtain the tension value of the yarn and further calculate the torsion value of the yarn feeder.

A tension measurement device includes: a pair of rotatable first support rollers; a pressing portion arranged to face a midpoint between the pair of first support rollers; and a load cell capable of measuring a load applied to the pressing portion, and is capable of measuring a tension by clamping a lashing belt between the pair of first support rollers and the pressing portion. A pair of rotatable second support rollers is arranged to face the pair of first support rollers.