Apparatuses, systems, and associated methods of manufacturing are described that provide for improved sensor devices. An example sensor device includes a magnet mounting tube and a magnet supported within the magnet mounting tube. The sensor device includes a sensor mounting tube that receives at least a portion of the magnet mounting tube and supported magnet therein. The sensor device includes a magnetic sensor affixed to the sensor mounting tube. The sensor device includes a spring positioned around the magnet mounting tube and the sensor mounting tube such that the magnet and the magnetic sensor are surrounded by the spring. In an instance in which a load is applied to either a first end or second end of the spring, the magnet mounting tube translates relative the sensor mounting tube so as to induce a change in magnetic flux identified by the magnetic sensor indicative of a weight of the load.

A kingpin assembly includes a housing having a recess located therein, a kingpin having at least a portion located within the recess of the housing, wherein the kingpin is secured within the recess of the housing, and wherein the kingpin includes an axis extending along a length of the kingpin, and a sensor arrangement configured to sense a force exerted on the kingpin in a first direction that is substantially perpendicular to the longitudinal axis, and a second direction that is substantially perpendicular to the first direction.

A kingpin assembly includes a housing having a recess located therein, a kingpin having at least a portion located within the recess of the housing, wherein the kingpin is secured within the recess of the housing, and wherein the kingpin includes an axis extending along a length of the kingpin, and a sensor arrangement configured to sense a force exerted on the kingpin in a first direction that is substantially perpendicular to the longitudinal axis, and a second direction that is substantially perpendicular to the first direction.

A disclosed airborne vehicle includes split-ring resonators (split ring resonators), which may be embedded within a material. Each split ring resonator may be formed from a three-dimensional (3D) monolithic carbonaceous growth and may detect an electromagnetic ping emitted from a user device. Each split ring resonator may generate an electromagnetic return signal in response to the electromagnetic ping. The electromagnetic return signal may indicate a state of the material in a position proximate to a respective split ring resonator. In some aspects, each may resonate at a first frequency in response to the electromagnetic ping when the material is in a first state, and may resonate at a second frequency in response to the electromagnetic ping when the material is in a second state. A resonant frequency of the 3D monolithic carbonaceous growth may be based on physical characteristics of the material.

The disclosure relates to a linear actuator including a base, a linear motor, a load cell and a rotary motor. The linear motor is disposed on the base and includes a fixed coil module and a movable magnetic backplane. The fixed coil module is fixed on the base, and the movable magnetic backplane is configured to slide relative to the fixed coil module along a first direction. The rotary motor is rotated around a central axis in parallel with the first direction. The load cell has two opposite sides parallel to the first direction, respectively. The movable magnetic backplane of the linear motor and the rotary motor are connected to the two opposite sides of the load cell, respectively. The load cell is subjected to a force applied thereto by the rotary motor and parallel to the first direction, and configured to convert the force into an electrical signal.

The disclosure relates to a linear actuator including a base, a linear motor, a load cell and a rotary motor. The linear motor is disposed on the base and includes a fixed coil module and a movable magnetic backplane. The fixed coil module is fixed on the base, and the movable magnetic backplane is configured to slide relative to the fixed coil module along a first direction. The rotary motor is rotated around a central axis in parallel with the first direction. The load cell has two opposite sides parallel to the first direction, respectively. The movable magnetic backplane of the linear motor and the rotary motor are connected to the two opposite sides of the load cell, respectively. The load cell is subjected to a force applied thereto by the rotary motor and parallel to the first direction, and configured to convert the force into an electrical signal.

Methods, apparatus, systems and articles of manufacture are disclosed to facilitate a single pin load sensor coupled to a hitch receiver, the sensor to measure one or more loads on the hitch receiver. An example apparatus includes a load sensing pin coupled to a hitch receiver of a vehicle, the load sensing pin disposed in a cavity of a crossbar that is to couple the hitch receiver to the vehicle, wherein the load sensing pin is to measure a load transferred from the hitch receiver to the crossbar.

Methods, apparatus, systems and articles of manufacture are disclosed to facilitate a single pin load sensor coupled to a hitch receiver, the sensor to measure one or more loads on the hitch receiver. An example apparatus includes a load sensing pin coupled to a hitch receiver of a vehicle, the load sensing pin disposed in a cavity of a crossbar that is to couple the hitch receiver to the vehicle, wherein the load sensing pin is to measure a load transferred from the hitch receiver to the crossbar.

A force sensor has a sensing system including a target piece and a sensing element, configured to provide changes of a magnetic field, being generated by motion of the target piece. The sensing element senses these changes and provides a signal representative of the position of the target piece. An integrated circuit with processing means can process signals from the sensing element. A semiconductor package includes at least the integrated circuit. A flexible piece includes the target, and it is attached to the semiconductor package. The attachment area between the flexible piece and the semiconductor package does not extend beyond the top projection, or outline, of the semiconductor package. The flexible piece receives a force stimulus, so that upon exerting a force on the flexible piece, the displacement of the target piece with respect to the surface of the semiconductor package can be sensed by the sensing element.

The present invention is related, but is not restricted, to the field of the study or analysis of materials by determining the chemical or physical properties thereof, in particular the field of the investigation or analysis of materials by using electromagnetic waves, specifically providing a method from measuring internal stress in tires, using a ferromagnetic material.

The invention provides a method for measuring internal stress in a tire, characterized in that it comprises: incorporating into the tire a material that is a combination of a rubber matrix and a plurality of microwires made of a ferromagnetic material; irradiating said tire with electromagnetic waves by means of a transmitting antenna; receiving an electromagnetic wave absorption response from said tire by means of a receiving antenna; and determining the internal stress of the tire by means of a processor operatively connected to said receiving antenna, on the basis of the electromagnetic wave absorption response. The invention further provides a material for measuring the internal stress in a tire, characterized in that it is a combination of a rubber matrix and a plurality of microwires made of a ferromagnetic material.