A methods and system to operate hydraulic fracturing units may include utilizing hydraulic fracturing unit profiles. The system may include hydraulic fracturing units may include various components. The components may include an engine and associated local controller and sensors, a transmission connected to the engine, transmission sensors, and a pump connected to the transmission and powered by the engine via the transmission and associated local controller and sensors. A supervisory controller may control the hydraulic fracturing units. The supervisory controller may be in communication with components of each hydraulic fracturing unit. The supervisory controller may include instructions to, for each hydraulic fracturing units, obtain hydraulic fracturing unit parameters, determine a hydraulic fracturing unit health assessment, and build a hydraulic unit profile including the health assessment and parameters. The supervisory controller may, based on the health assessment, determine the hydraulic fracturing unit's capability to be operated at a maximum power output.

The invention relates to a method for monitoring operating parameters of an actuator (10), wherein the method comprises: providing the actuator (10), providing at least two detection units (26, 28, 30, 32, 34, 36) which are designed to detect different operating parameters of the actuator (10), detecting operating parameters of the actuator (10) via the detection units (26, 28, 30, 32, 34, 36), outputting data relating to the measured operating parameters to an evaluation unit, combining the measured operating parameters into a state information, which indicates whether or not the technical state of the actuator (10) is in a predetermined standard state.

The invention relates to a method and an arrangement for managing and controlling the lifetime of a tree handling system of a forest machine. The tree handling system is activable through the impact of hydraulically powered execution means (7:1-7:n), the method comprises the steps of; obtaining sensor data (13:1-13:n) that represent a current loading (PT) on the tree handling system, determining a current partial damage value (SL, SM, SH), which is deemed to occur on the tree handling system at various loadings (PT) on the tree handling system,

A characteristic of the invention are the steps of; determining a key indicator (Ni:1-Ni:n), which describes a measured value (X) that relates to the operation of the tree handling system (1) and is representative of the risk of partial damage relative to specific reporting about a current running operating state (db:1-db:n) of the tree handling system, comparing at least the current partial damage value (SL, SM, SH) with a normative partial damage value (SLX, SMX, SHX) for a normative operating state (db:1X-db:nX) of the tree handling system corresponding to the key indicator (Ni:1-Ni:n) and determining a change that affects the measured value (X) of the key indicator (Ni:1-Ni:n) in such a manner that the current partial damage value (SL, SM, SH) returns to or approaches a level corresponding to the normative partial damage value (SLX, SMX, SHX) for the key indicator.

There are disclosed a measuring apparatus and method for measuring the pull-off force of a frangible arrangement connecting a capsule with a tamper evident band of closed annular shape, with an annular ridge that axially retains the tamper evident band, a pusher device that pushes the capsule so as to cause the breakage of the frangible arrangement, a sensor arrangement to detect the tensile force applied by the pusher device, and a lifting and abutting device arranged for supply the capsule to the annular ridge. There are further disclosed a band disengagement arrangement for disengaging the tamper evident band from the annular ridge after the breakage of the frangible arrangement, yet maintaining intact the closed annular shape of the tamper evident band.

A methods and system to operate hydraulic fracturing units may include utilizing hydraulic fracturing unit profiles. The system may include hydraulic fracturing units may include various components. The components may include an engine and associated local controller and sensors, a transmission connected to the engine, transmission sensors, and a pump connected to the transmission and powered by the engine via the transmission and associated local controller and sensors. A supervisory controller may control the hydraulic fracturing units. The supervisory controller may be in communication with components of each hydraulic fracturing unit. The supervisory controller may include instructions to, for each hydraulic fracturing units, obtain hydraulic fracturing unit parameters, determine a hydraulic fracturing unit health assessment, and build a hydraulic unit profile including the health assessment and parameters. The supervisory controller may, based on the health assessment, determine the hydraulic fracturing unit's capability to be operated at a maximum power output.

Method and apparatus for detecting overload distortion A method and apparatus for detecting overload distortion in lifting and the like gear is disclosed. The apparatus includes a hook with two reference points thereon defining, in the undistorted state of the hook, a reference dimension. The hook also has a standard dimension provided on the hook and conveniently accessible for reference purposes. The standard dimension is also a pair of points and one of this pair is coincident with one of the reference points thereby forming a triangle of points on the hook.

The present invention relates to a crane having a boom at which at least one load receiving means is arranged in a raisable and lowerable manner, wherein an overload protection device has detection means for detecting the outreach and the load on the at least one load receiving means, and wherein a monitoring device for monitoring the overload protection device is provided and has determination means for determining a tensioning force holding the boom and/or induced in a guy cable. The invention furthermore also relates to a method for monitoring the overload protection device of such a crane. Provision is made in accordance with the invention that the monitoring device determines online in crane operation a tensioning torque from the continuously determined tensioning force, determines a lifting torque from the continuously detected outreach and the continuously detected load, determines a dead torque while making use of stored crane data, compares the sum of the named lifting torque and the named dead torque with the named tensioning torque and then, if a difference found in the comparison exceeds a tolerance threshold, emits an error signal and/or shutdown signal.

A tampering detection system for a dispensing nozzle of a dispensing system in which the dispensing nozzle is inserted into a connecting piece of the dispensing system comprises a flat, tactile sensor comprising at least two pressure sensitive and individually evaluable sensor segments. The sensor is arranged between the connecting piece and the dispensing nozzle and extends along an inner circumference of the connecting piece in a connecting region for the dispensing nozzle. The tamper detection system further comprises an evaluation unit connected to the sensor segments to detect a pressure acting on each of the sensor segments.

The invention relates to a device (100) for testing a connection of a guarantee strip (3.1) of a security seal of a closure lid (1.1) having a lid main body (2.1), which device comprises a driver element (180) for gripping the guarantee strip (3.1) and a stop element (780) for the lid main body (2.1). The driver element (180) and the stop element (170) are movable relative to each other such that a tear-off force can be exerted on the guarantee strip (3.1). The device (100) also comprises a force-measuring device (171), for measuring the tear-off force during the relative movement of the guarantee strip (3.1) and the lid main body (2.1), and a separating device (191, 192) for severing the guarantee strip (3.1) after it has been tom off from the lid main body (2.1). This allows the guarantee strip (3.1) to be severed and thereby results in a considerable simplification of the removal of the guarantee strip (3.1) from the testing device, in particular if the testing device is designed such that the tom-off guarantee strips (3.1) are slid onto the stop element (170). The device (100) can be operated in a fully automatic manner and can be integrated in a system for producing closure lids having guarantee strips.

A foot presence sensor system for an active article of footwear can include a sensor housing configured to be disposed at or in an insole of the article, and a controller circuit, disposed within the sensor housing, configured to trigger one or more automated functions of the footwear based on a foot presence indication. In an example, the sensor system includes a capacitive sensor configured to sense changes in a capacitance signal in response to proximity of a body. A dielectric member can be provided between the capacitive sensor and the body to enhance an output signal from the sensor.