The present invention discloses a driving belt tension detection device, comprising a support (1), wherein one end of the support (1) in the length direction is rotatably connected with a connecting portion (2) for being mounted on a driving wheel, the other end of the support (1) in the length direction is slidely provided with a tension detection part (3) for clamping a driving a belt to measure the tension of the driving belt. The support (1) is also provided with a slide adjusting part (4) for adjusting a slide position of the tension detection part (3). If the detected tension of the driving belt does not meet the requirement, the distance between the driving wheel and a driven is adjusted to adjust the tension on the driving belt to be appropriate. The detection device has high detection accuracy and is less affected by noise.

Systems and methods for determining a Material's (MTL) mechanical properties. The methods comprise: coupling a first end of MTL to a First Mechanical Mechanism (FMM) movable in a First Direction (FD) and coupling a second end of MTL to a Second Mechanical Mechanism (SMM) movable in a Second Direction (SD); applying a first Pulling Force (PF) to MTL; applying an Oscillating Force (OF) to MTL; applying a second PF to MTL so as to cause any undulations in MTL to be removed and to cause a loading of fibers or polymeric units that support MTL; allowing MTL to oscillate through a series of cycles of loading and unloading; measuring a strain/stress on MTL as a function of time; determining a natural frequency of MTL based on the strain/stress; and determining an elastic modulus of MTL using the natural frequency.

Systems and methods for determining a Material's (MTL) mechanical properties. The methods comprise: coupling a first end of MTL to a First Mechanical Mechanism (FMM) movable in a First Direction (FD) and coupling a second end of MTL to a Second Mechanical Mechanism (SMM) movable in a Second Direction (SD); applying a first Pulling Force (PF) to MTL; applying an Oscillating Force (OF) to MTL; applying a second PF to MTL so as to cause any undulations in MTL to be removed and to cause a loading of fibers or polymeric units that support MTL; allowing MTL to oscillate through a series of cycles of loading and unloading; measuring a strain/stress on MTL as a function of time; determining a natural frequency of MTL based on the strain/stress; and determining an elastic modulus of MTL using the natural frequency.

A method and apparatus for calculating line sag in a span of a conductor is provided. The method includes using a portable smart device having one or more accelerometers and running a line sag application on the processing device. The line sag application enables acceleration data of return waves generated on the conductor to be collected using the smart device and to be plotted as a function of time for display on the smart device. The method further includes placement of time markers on the plotted data displayed on the smart device to determine elapsed time and calculating line sag using the elapsed time.

A method and apparatus for calculating line sag in a span of a conductor is provided. The method includes using a portable smart device having one or more accelerometers and running a line sag application on the processing device. The line sag application enables acceleration data of return waves generated on the conductor to be collected using the smart device and to be plotted as a function of time for display on the smart device. The method further includes placement of time markers on the plotted data displayed on the smart device to determine elapsed time and calculating line sag using the elapsed time.

A system for capturing and processing information from passers-by walking over a device equipped with stratified mechanical compression sensing, such as a mat or doormat, which is made up of a metal structure supporting a set of bars made of conductive polymer superimposed on the metal structure; such system is capable of managing a plurality of devices together.

Devices and methods of measuring a handsaw or other cutting blade are described. The device may be in the form of a tension gauge that includes a first plate associated with a moveable protrusion such as a pin that deflects the blade and a second plate that is pivotably attached to the first plate and includes two or more fixed pins.

Devices and methods of measuring a handsaw or other cutting blade are described. The device may be in the form of a tension gauge that includes a first plate associated with a moveable protrusion such as a pin that deflects the blade and a second plate that is pivotably attached to the first plate and includes two or more fixed pins.

Methods and systems for receiving, by a destination device at which a securement-monitoring application is operating, from a securement sensor device, a securement-condition communication indicating a condition of a securement remote to the destination device. Operations also include determining, by the destination device using the securement-monitoring application, an action to take responsive to the securement-condition communication, such as notifying a user of an undesired condition at the securement. The operations further include initiating the action determined.

Methods and systems for receiving, by a destination device at which a securement-monitoring application is operating, from a securement sensor device, a securement-condition communication indicating a condition of a securement remote to the destination device. Operations also include determining, by the destination device using the securement-monitoring application, an action to take responsive to the securement-condition communication, such as notifying a user of an undesired condition at the securement. The operations further include initiating the action determined.