Abstract: According to one embodiment, a sensor includes a base, a first support portion fixed to the substrate, and a first member supported by the first support portion. A gap is provided between the base and the first member. The first beam electrode and the second beam electrode satisfy at least one of a first condition, a second condition, a third condition, a fourth condition, a fifth condition, a sixth condition, a seventh condition, or an eighth condition.

Abstract: According to one embodiment, a sensor includes a base body, a support portion fixed to the base body, and a first member supported by the support portion. A gap is provided between the base body and a part of the first member. The first member includes a supported region, a first movable region, a first structure, a first support structure, a first connection structure, a first connect portion, and a first beam. The support portion is located between the base body and the supported region in a first direction from the base body to the support portion. The first beam extends along a second direction crossing the first direction. A first beam position of the first beam is located between a first movable region position of the first movable region and a support portion position of the support portion in the second direction.

Abstract: A water-resistant corrugated fiber board sheet having a high water resistance and capable of being recycled after the use contains a water-resistant linerboard adhered to both surfaces of a corrugated, water-resistant core sheet, The water repellency (JIS P8137) of at least one of both surfaces of the corrugated, water-resistant core sheet and the core sheet-side surface of the water-resistant linerboard in the recyclable water-resistant corrugated fiber board sheet is at least R 6 and the Cobb water absorption (JIS P8140; contact time: 30 minutes) of the surface of the corrugated fiberboard sheet is not higher than 30 gm2.

Abstract: The present invention provides a water-resistant corrugated fiberboard sheet having a high water resistance and capable of being recycled after the use.