Measurement apparatus, for generating a first output signal indicative of a measurand, comprises: a first oscillator circuit and a second oscillator circuit, each oscillator circuit being arranged to generate a respective oscillating output signal and comprising at least a respective first component having a property determining a respective output frequency of the respective oscillating output signal; a sensor for sensing said measurand, the sensor comprising said first component of the first oscillator circuit, said property of said first component of the first oscillator circuit being dependent upon said measurand; and circuitry arranged to receive said oscillating output signals and generate said first output signal, said first output signal being indicative of a number of cycles of one of the first and second oscillating output signals in a time period determined by a period of the other of said first and second oscillating output signals.

A protective garment contains a projectile detection device, in addition to impact and breach resistant materials for protecting the wearer. An arrangement of force sensitive regions defines a grid arrangement responsive to an incoming projectile. The force sensitive regions include pressure sensitive or piezoelectric characteristics such that an impact varies the electrical response of each region. A detection circuit connects to each region for sampling. A sampling of the regions computes a high velocity impact by a sudden change in the sensed electrical characteristics, such as a sudden drop in resistance between two planer sheets. The grid arrangement identifies the impact placement on the garment, and can be mapped to anatomical regions to evaluate a severity. Placement and impact force, along with GPS coordinates of the wearer, are transmitted by the detection circuit and/or in conjunction with an app on a mobile device of the wearer for alerting first responders.

A device for detecting strains and transmitting detected data that can be applied to the surface of a structure to be monitored or incorporated in the structure is provided. The device allows to reliably acquire and transmit data concerning the strains undergone by the structure. The device comprises a matrix made of an electrically insulating material, in which at least one or more strain sensors, an electronic circuit and an antenna electrically connected to one another are embedded. One or more strain sensors are made of a material selected from metals and metal alloys, electrically conductive resins and electrically conductive inks.

A garment is provided, configured to support a body part, an comprising a load-bearing portion configured to at least partially bear the weight of the body part, and a sensor functionally connected to the load-bearing portion so as to be acted on by the weight. The sensor comprises a core having one or more strain gauges mounted thereon, and one or more stress absorbers attached to the core. Each stress absorber 5 comprises a flexing member having a fixed end connected to the core, and a free end.

An apparatus includes a controller; a bendable device having one or more bending segments, each bending segment being configured to bend, rotate, or translate by pulling or pushing a set of drive wires; an actuator device having a plurality of driving portions, each drive wire being connected to a driving portion, each driving portion having a driving source connected to a force sensor configured to detect force of the drive wire and generate an analog force signal in response to the detected force; one or more ADC, wherein the analog force signals of the set of drive wires are generated and communicated to a single ADC configured to convert the analog force signals to digital force signals, the digital force signals being serially communicated to the controller, wherein the controller drives the driving sources based on the digital force signals.

An estimating device including: a detecting section detecting electrical characteristics at a flexible material that is electrically conductive and has electrical characteristics that vary in accordance with a magnitude of an applied stimulus and that is at an assisting member that has the flexible material and is provided at a transporting section that transports a transported object; and an estimating section that inputs time-series electrical characteristics to a learning model that is trained by using, as learning data, time-series electrical characteristics at times when a stimulus was applied to the flexible material, and placed state information expressing a placed state of the transported object with respect to the assisting member that applies a stimulus to the flexible material, such that the time-series electrical characteristics are inputs of the learning model and the learning model outputs the placed state information expressing a placed state corresponding to inputted time-series electrical characteristics.

A state detection system for a milling tool used includes: a milling tool including a shaft portion having a first end portion and a second end portion, the milling tool being rotatable about a rotation axis; a plurality of sensors attached to the shaft portion to detect an external force acting on the milling tool; a display device; and a management device. The plurality of sensors detect a first force acting on the milling tool in a first direction along the rotation axis, a second force acting on the milling tool in a direction along a plane normal to the rotation axis, and a load torque acting on the milling tool in a direction for preventing rotation of the milling tool. The management device causes the display device to display first information based on at least two of the first force, the second force, and the load torque.