Abstract:
A load sensor includes a core having a hollow part provided therein and containing magnetic material and a coil attached to the core. A magnetic path along which a magnetic flux generated by a current flowing in the coil is formed along a circumference direction of the hollow part. The core has a load-receiving portion that receives a load at a surface of the core located in a crossing direction crossing a plane along which the magnetic path is formed.
Abstract:
An input device of the present disclosure has a stationary part, an operation input part that is provided above the stationary part, and is movable with respect to the stationary part, a detector configured to detect information regarding operation of the operation input part, and an attachment part provided in the stationary part so as to project downward from a second surface of the stationary part. The attachment part has a holder and a coupler configured to couple to the stationary part. A holding force maintaining a state where the holder is attached to an object is smaller than a coupling force between the coupler and the stationary part. When a force is applied to the holder from above, the holding force of the holder allows the holder to be fixed to the object.
Abstract:
A position sensor includes a first transmission coil, a second transmission coil having a different shape from the first transmission coil, a receiver coil for receiving electromagnetic waves transmitted from the first and second transmission coils, a transmission waveform generator that inputs first and second input waves to the first and second transmission coils having frequencies identical to each other and having phases different from each other, and a position detector that detects a position of a target provided movably with respect to the first transmission coil, the second transmission coil, and the receiver coil based on a first output signal obtained from the receiver coil in response to the first and second input waves input from the transmission waveform generator to the first and second transmission coils, respectively. The position detector is configured to detect the position of the target based on values obtained by sampling the first output signal obtained from the receiver coil at least two times at a sampling period different from an integer multiple of a half of a period of the first input wave and the second input wave. This position sensor can simplify circuitry.
Abstract:
An input device includes a housing, an operation unit, a vibrating body, a piezoelectric element, a picker, and a signal processing unit. The operation unit is movable relative to the housing. The vibrating body has elasticity. The vibrating body includes a first end partially fixed to the housing, and a second end provided so as to be vibratable. The piezoelectric element is provided to the vibrating body. The piezoelectric element is configured to convert vibration energy of the vibrating body into electrical energy as the vibrating body vibrates. The picker flicks the vibrating body to allow the vibrating body to vibrate in conjunction with the operation unit. The signal processing unit is configured to receive power generated by the piezoelectric element to operate and transmit, through wireless communications, detection information to be generated as the operation unit moves.
Abstract:
A processor of a position detection device intermittently performs an acquisition process during a measurement period to acquire a detection signal induced in a detection coil depending on the position of an object by driving an excitation coil. The processor configured to monitor whether or not the processor is executing the acquisition process without driving the excitation coil during a monitoring period set before the measurement period of the processor, and the processor is configured to execute a predetermined process when the processor is executing the acquisition process.