A physical quantity sensor includes: a base portion; a first arm portion, a second arm portion, and a third arm portion that are coupled to the base portion and that are provided with fixing portions; a movable portion disposed between the first arm portion and the second arm portion and between the first arm portion and the third arm portion in a plan view; a constricted portion that is disposed between the base portion and the movable portion, and that couples the base portion and the movable portion; and a physical quantity detection element that is disposed across the constricted portion in the plan view and that is attached to the base portion and the movable portion. Thin portions are formed at least at two positions in at least one of the second arm portion and the third arm portion.

A system for sensing true positive impacts may include a sensing device configured for secured coupling to a user. The sensing device may include a sensor configured for sensing accelerations of an impact and for generating a signal based on the impact. The sensing device may also include a control sensor for sensing when the sensing device is in position for sensing. The sensing device may also include a computer-readable storage medium having instructions stored thereon for receiving and capturing the signal from the sensor, and comparing first and second signals from the control sensor to determine if the signal is a true positive signal. The system may also include a processor for processing the instructions to capture the signal, perform the comparing, and identify the signal as a true positive signal. Method of sensing true positive impacts and of workload monitoring are also provided.

A MicroElectroMechanical Structure (MEMS) accelerometer includes a piezoelectric membrane including at least one electrode and an inertial mass, the piezoelectric membrane being affixed to a holder; and a circuit for evaluating sums and differences of signals associated with the at least one electrode to determine a three-dimensional acceleration direction, wherein the at least one electrode includes a segmented electrode, and wherein the segmented electrode includes four segmentation zones.

The present disclosure discloses an acoustic device and a support assembly. The support assembly may include a shell configured to provide a space for accommodating one or more components of the acoustic device. The support assembly may further include an interaction assembly configured to realize an interaction between a user and the acoustic device, wherein the interaction assembly include a first component and one or more second components, in response to receiving an operation of the user, the first component is configured to trigger at least one of the one or more second components to cause the acoustic device to perform a function corresponding to the at least one of the one or more second components.

An information handling system stylus includes components to support active tip writing inputs at a touchscreen display with the active tip powered by a rechargeable battery. An accelerometer and microphone included in the housing cooperate to manage battery life with instructions executed on a processing resource included in the accelerometer and/or microphone. The instructions apply different wake behaviors to manage stylus power consumption based upon whether the stylus couples to and information handling system, such as monitoring stylus motion with different wake intervals and monitoring for predetermined acceleration profiles, such as walking, falling and rolling.

[Object] To provide a low heat-resistant sensor that has high chemical resistance, excellent drip-proof properties, and excellent dust-proof properties. [Solution] A low heat-resistant sensor includes a sensor body that includes a sensor unit that is disposed in a housing and a cable that is electrically connected to the sensor unit of the sensor body. The housing of the sensor body is composed of fluorine resin, the cable is covered by a tube composed of fluorine resin, a portion at which the housing and the tube are connected to each other is thermally bonded, and the housing and the tube are integrally formed.

[Object] To provide a low heat-resistant sensor that has high chemical resistance, excellent drip-proof properties, and excellent dust-proof properties. [Solution] A low heat-resistant sensor includes a sensor body that includes a sensor unit that is disposed in a housing and a cable that is electrically connected to the sensor unit of the sensor body. The housing of the sensor body is composed of fluorine resin, the cable is covered by a tube composed of fluorine resin, a portion at which the housing and the tube are connected to each other is thermally bonded, and the housing and the tube are integrally formed.

A mixer vehicle includes a mixer drum, a first acceleration sensor, a second acceleration sensor, and a controller. The first acceleration sensor is configured to produce first acceleration signals and the second acceleration sensor is configured to measure accelerations within the mixer drum to produce second acceleration signals. The controller is configured to receive the first acceleration signals from the first acceleration sensor and second acceleration signals from the second acceleration sensor. The controller is further configured to determine a presence of material within the mixer drum based on the first acceleration signals and the second acceleration signals. The controller is further configured to determine one or more properties of the material within the mixer drum based on the first acceleration signals and the second acceleration signals.

An object is to further improve the waterproofness between an end portion of a wiring member and a resin molded part. Disclosed is a sensor device including: a sensor element; a wiring member connected to the sensor element; a first resin molded part that covers the sensor element and an end portion of the wiring member; and a second resin molded part molded separately from the first resin molded part and combined with the first resin molded part into an integral piece.

An object is to further improve the waterproofness between an end portion of a wiring member and a resin molded part. Disclosed is a sensor device including: a sensor element; a wiring member connected to the sensor element; a first resin molded part that covers the sensor element and an end portion of the wiring member; and a second resin molded part molded separately from the first resin molded part and combined with the first resin molded part into an integral piece.