Sensor

A sensor, comprising:

• a base;
• a first structure;
• and
• a second structure,
• the first structure including
• a first fixed portion fixed to the base, and
• a first element portion supported by the first fixed portion,
• the first element portion including a first resistance layer and a first conductive layer provided between the base and the first resistance layer,
• a direction from the base to the first fixed portion being along a first direction,
• a first gap being provided between the base and the first element portion,
• the second structure including a second fixed portion fixed to the base, and a second element portion supported by the second fixed portion,
• the second element portion including a second resistance layer and a second conductive layer provided between the base and the second resistance layer,
• a second gap being provided between the base and the second element portion,
• a direction from the base to the second fixed portion being along the first direction,
• a second direction from the first element portion to the second element portion crossing the first direction,
• a first resistance layer width in the second direction of the first resistance layer being smaller than a first conductive layer width in the second direction of the first conductive layer, and
• a second resistance layer width in the second direction of the second resistance layer being smaller than a second conductive layer width in the second direction of the second conductive layer.