A tension testing apparatus is provided and allows a user to interface and collect real time data in remote locations. The user can collect, record and print anchor testing information that includes tension measurement load data, time, longitude, latitude and elevation of the load test.

A roller bearing includes an outer ring, an inner ring, at least one row of rollers arranged between the outer ring and the inner ring, and at least one optical fiber cable mounted to the outer ring or the inner ring, the optical fiber cable including at least one Bragg grating. The optical fiber cable is configured such that a signal in the optical fiber cable is usable to determine a preload or load on the roller bearing.

A load cell for determining a radial force acting on a crankshaft includes a receiving sleeve for receiving a ring of a bearing; a fastening ring for attaching the load cell in a transmission housing; axial support areas provided on the fastening ring for axially supporting the ring of the bearing; and measuring regions for receiving radial forces of the receiving sleeve and which connect the receiving sleeve with the fastening ring, wherein strain sensors are attached to at least two of the measuring regions; and wherein the measuring regions comprise measuring lugs formed as angle brackets.

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.

A variety of applications can include apparatus and/or methods that provide an axial force transducer. Two coils wound coaxially with respect to each other can be used with a magnet to determine a distance traveled based on application of an axial force to an instrument component. The two coils and magnet can be configured in a number of ways with respect to the instrument component. In various embodiments, the difference between an inductance associated with one of the two coils along with its relation to the magnet and an inductance associated with the other one of the two coils along with its relation to the magnet can be used to determine the axial force on the component of the instrument associated with the distance travelled. Additional apparatus, systems, and methods are disclosed.

A method of monitoring the usage of an internal combustion engine is provided. The method comprises performing an engine monitoring routine using a local monitoring device directly attached to an internal combustion engine. The engine monitoring routine includes generating a plurality of data points representative of the crankcase pressure of the internal combustion engine using a pressure sensor of the local monitoring device, processing the generated data points to determine a first value representative of a firing frequency of the internal combustion engine, generating an aggregated summary of the internal combustion engine usage based on the first value, and transmitting identification data for the local monitoring device and the aggregated summary from the local monitoring device to a remote application. The remote application processes the transmitted aggregated summary based on the transmitted identification data to determine engine speed usage data for the internal combustion engine.

A method of monitoring the usage of an internal combustion engine is provided. The method comprises performing an engine monitoring routine using a local monitoring device directly attached to an internal combustion engine. The engine monitoring routine includes generating a plurality of data points representative of the crankcase pressure of the internal combustion engine using a pressure sensor of the local monitoring device, processing the generated data points to determine a first value representative of a firing frequency of the internal combustion engine, generating an aggregated summary of the internal combustion engine usage based on the first value, and transmitting identification data for the local monitoring device and the aggregated summary from the local monitoring device to a remote application. The remote application processes the transmitted aggregated summary based on the transmitted identification data to determine engine speed usage data for the internal combustion engine.

A torsion sensor, including a casing assembly, a sleeve set, a driven slider, a driving slider, an elastic member, a magnetic sensor, and a magnetic member is provided. The sleeve set includes a first sleeve, a second sleeve, and a third sleeve. The first sleeve is disposed in the casing assembly. The second sleeve has a neck portion sleeved on the second side of the first sleeve. The third sleeve is disposed between the first and the second sleeves. The driven slider is connected to a head portion of the second sleeve. The driving slider surrounds an outer side of the driven slider. The elastic member surrounds an outer side of the second sleeve. One of the magnetic sensor and the magnetic member is disposed in the casing assembly, and the other one is disposed in the sleeve set. The magnetic sensor and the magnetic member are disposed opposite to each other.

There is provided a detection apparatus including a housing that includes a working surface, and a sensor configured to detect the force or the moment exerted on the working surface, on at least a first detection axis and a second detection axis. The working surface coincides with a surface that includes the first detection axis and the second detection axis, the working surface being at least partially symmetrical around the first detection axis passing through the center of the sensor.

A trunnion roller thrust measurement assembly includes a trunnion roller assembly and a thrust measurement assembly. The trunnion roller assembly includes a roller configured to provide rotary support of a rotary drum; a shaft attached to the roller, the shaft being aligned with an axis of rotation of the roller; and a bearing housing configured support an end of the shaft. The thrust measurement assembly includes a bearing housing end cap attachable to an end of the bearing housing; and one or more thrust sensors disposed on the bearing housing end cap. The one or more thrust sensors are configured to sense a thrust force exerted on the bearing housing end cap by an axial displacement of the shaft. An adjustment mechanism is utilized to skew the roller based on the sensed thrust force.