A left and right feet pedaling analysis system is disclosed, comprising a pedaling sensing device and an electronic carrier, wherein the pedaling sensing device includes one or more transmission units and one or more accelerometers which are applied to detect the acceleration change data during pedaling, and the pedaling sensing device or/and the electronic carrier can analyze the signals coming from the accelerometer during riding the bicycle in order to acquire the pedaling rotation number, the ratio of the left and right foot forces as well as the installation direction thereby understanding the pedaling distribution ratio of the left and right foot when riding; as such, it can help improve the pedaling skills and adjust the pedaling force mode so as to reduce the risk of injury caused by excessively unbalanced pedaling asymmetry.

The present disclosure includes the use of a smart load cell in a system for controlling an electromechanical actuator. A load cell may be positioned along the outer surface of the electromechanical actuator. Further, the load cell may utilize strain gages and a microcontroller. The load cell may be configured to transmit data to an electric brake actuator controller which includes calibration for operating temperature of the electromechanical actuator.

A brake fluid detection system used for detecting the brake fluid quality of a brake device is revealed. The detection system includes a first device having a detection unit connected to a data transmission unit, a second device composed of a data storage unit, a data analysis unit, and a data processing unit, and a third device provided with an application software. The data transmission unit is provided with a wireless communication module. The third device is a portable internet device. The third device receives detected data obtained and uploaded by the first device and users set the detected data by operating the application software. Then the original detected data and the detected data set by users is sent to the data processing unit of the second device through a wireless network for data processing to get detection data. Lastly detection data is displayed on the third device.

A force measurement device is arranged in one of axle holes respectively formed in two ends of a crank. The force measurement device includes a sensor seat positioned in one of the axle holes and a plurality of stress detection units arranged on the sensor seat in an annular configuration and spaced from each other by an angle. A calculation and transmission device is electrically connected with the plurality of stress detection units. When a force is applied in a force application direction to the crank, the force is transmitted through the crank to the sensor seat, and the plurality of stress detection units detect the force and generate and transmit a plurality of stress variation signals corresponding to a magnitude of the force to the calculation and transmission device.

A method in which at least one piezoceramic sensor, which converts every mechanical force to which it is subjected into an electrical signal and having a Curie temperature higher than 200 C., is solidarized directly onto the surface of a metal support element of a vehicle braking element, which during use faces a vehicle element to be braked. While in contact with such a surface, an electrical circuit is implemented that picks up and eventually processes the electrical signal, the electrical circuit being connected with a connector integrated with the metal support element. An electrically insulating layer sandwiches the at least one piezoceramic sensor and the electrical circuit, and a block of friction material with an underlying damping layer is formed upon the electrically insulating layer. After forming the block of friction material, the piezoceramic sensor is polarized by applying a predetermined potential difference thereto by means of the connector.

An embodiment of the present disclosure provides a resistance strain sheet, a sensing assembly, a force sensor and a skateboard, wherein the resistance strain sheet includes: a strain sheet body; and a resistance wire, the strain sheet body having an symmetry axis, a plurality of resistance wires being provided, and the plurality of resistance wires being divided into two groups, the two groups of resistance wires are electrically connected to each other and symmetrically arranged on both sides of the symmetry axis, and each of the plurality of resistance wire being arranged at an acute angle with the symmetry axis.

A load cell that includes a beam extending from a fixed section to a load section including a deflection section that moves under a load and a central beam section spaced from the deflection section. At least one strain gauge is coupled to the beam for detecting movement of the beam. A stop element including a bearing surface is also provided and coupled to the beam and configured such that the bearing surface does not engage the beam in a first position and engages the beam in a second position.

A sensor device includes a base element extending in an axial direction and a first magneto elastic active region representing a first longitudinal section of a surface of the base element. The first longitudinal section extends in the axial direction and is magnetized in a first circumferential direction. The sensor device further comprises a first magnetic field sensor overlapping with the first longitudinal section, and a second magnetic field sensor disposed at a distance with respect to the first magnetic field sensor along the axial direction and overlapping with the first longitudinal section.

A pedal exercise signal detection device includes a sleeve having an outer circumference having a pressure signal connection device and a pressure detection unit mounted thereon; a first bearing disposed in the sleeve; a stator having a positioning axle having an end formed with a fastening hole; a fastener element fastening the stator and the sleeve together; a pedal having an axle hole into which the sleeve is inserted to be positioned therein and a receiving trough including a through opening corresponding to the pressure signal connection device; and a control circuit board disposed in the receiving trough and including signal reader units that extend through the through opening and corresponding to the pressure signal connection device.

This patent describes devices and methods to evaluate and compare the effectiveness of protective equipment in providing protection to players of contact sports, and to determine if a given protective product (pad) is compliant with a specified performance standard. To simulate the impacts experienced by these players, a pad-protected specially modified and instrumented manikin is impacted with solid loads of various weights at various speeds. The impacts are designed to model the impact forces and impact times encountered in typical game collisions. For each impact, measurements are made of the force exerted onto the pad, and the parts of this force that are transmitted through the pad onto various locations on the manikin, as a function of time. Five numbers that quantify the ability of each pad to protect the user are extracted from these measured force verses time data: (1) the maximum force applied on the pad, (2) the average applied force, (3) the maximum force measured under the pad, (4) the sum of the maximum forces measured under the pad, and (5) the ratio of the rebound load speed and the incident load speed. For a given impact, the pad that reduces the magnitudes of these quantities the most is the pad that provides the greatest measure of safety for the game players.