Sensor apparatus and robotic apparatus

A robotic apparatus, comprising

• a sensor apparatus that includes
• a sensor section that includes a first pressure sensor situated on a front side of the sensor section, and a second pressure sensor situated on a rear side of the sensor section, the first pressure sensor and the second pressure sensor facing each other, the sensor section detecting a force applied in an in-plane direction, on a basis of a pressure detection position, in the in-plane direction, at which pressure is detected by the first pressure sensor, and on a basis of a pressure detection position, in the in-plane direction, at which pressure is detected by the second pressure sensor,
• a separation layer that is arranged between the first pressure sensor and the second pressure sensor, the separation layer being made of a viscoelastic material that is deformed by a load applied to the first pressure sensor, and
• a first viscoelastic body layer that is arranged on a front surface of the first pressure sensor, the first viscoelastic body layer being made of a viscoelastic material that is deformable on the first pressure sensor in the in-plane direction.