A sensor is placed on a plate lowered into the hollow of the shaft and guided by taut wires between a lower attachment device and an upper motorized winder. The deformations, responsible for measurement errors and caused either by static deformations, produced by the weight or poor construction of the apparatus, or by vibrations, are to a large extent eliminated.

A sensor is placed on a plate lowered into the hollow of the shaft and guided by taut wires between a lower attachment device and an upper motorized winder. The deformations, responsible for measurement errors and caused either by static deformations, produced by the weight or poor construction of the apparatus, or by vibrations, are to a large extent eliminated.

A rotary encoder (1) comprising a housing (2), a shaft (3), a code disk (4) which is attached to the shaft (3), and a reading head (5) which is designed to detect the rotation of the code disk (4) are disclosed herein. The code disk (4) is affixed in the axial position thereof on an axial side by way of an abutment (6), and a resilient element (7, 17, 19) is arranged on the other axial side providing a clamping force for pressing the code disk (4) against the abutment (6). A method for assembling a rotary encoder is also disclosed herein.

A rotary encoder (1) comprising a housing (2), a shaft (3), a code disk (4) which is attached to the shaft (3), and a reading head (5) which is designed to detect the rotation of the code disk (4) are disclosed herein. The code disk (4) is affixed in the axial position thereof on an axial side by way of an abutment (6), and a resilient element (7, 17, 19) is arranged on the other axial side providing a clamping force for pressing the code disk (4) against the abutment (6). A method for assembling a rotary encoder is also disclosed herein.

A double-bearing position encoder has an axle stabilized within a housing via two bearings disposed on opposite walls of the housing. The axle is in communications with a rotating cam. The cam actuates a pulser so as to generate an active pulse at a tissue site for analysis by an optical sensor. The axle rotates a slotted encoder wheel or a reflective encoder cylinder disposed within the housing so as to accurately determine the axle position and, hence, the active pulse frequency and phase.

According to one embodiment, a holding apparatus includes a holding mechanism, a movement mechanism, a measuring instrument, a detector, and a controller. The holding mechanism holds a mobile body. The mobile body is movable through a gap between first and second structure bodies. The first structure body is columnar and extends in a first direction. The second structure body is tubular and is located around the first structure body along a first plane perpendicular to the first direction. The movement mechanism moves the holding mechanism along a circumferential direction around the first direction. The measuring instrument measures a movement amount in the circumferential direction of the holding mechanism. The detector detects a tilt of the holding mechanism in the first plane. The controller operates the movement mechanism and moves the holding mechanism based on a measurement result of the measuring instrument and a detection result of the first detector.

According to one embodiment, a holding apparatus includes a holding mechanism, a movement mechanism, a measuring instrument, a detector, and a controller. The holding mechanism holds a mobile body. The mobile body is movable through a gap between first and second structure bodies. The first structure body is columnar and extends in a first direction. The second structure body is tubular and is located around the first structure body along a first plane perpendicular to the first direction. The movement mechanism moves the holding mechanism along a circumferential direction around the first direction. The measuring instrument measures a movement amount in the circumferential direction of the holding mechanism. The detector detects a tilt of the holding mechanism in the first plane. The controller operates the movement mechanism and moves the holding mechanism based on a measurement result of the measuring instrument and a detection result of the first detector.

A torque sensor supporting device capable of preventing bending moment other than torque from occurring to a torque sensor and improving the detection accuracy of the torque sensor. A first supporting body is provided to a base serving as a first mounting section of a robot. A second supporting body is coupled to a second structure of a torque sensor including a first structure provided to the base, the second structure coupled to a first arm serving as a second mounting section, third structures provided between the first structure and the second structure, and at least two sensor sections provided between the first structure and the second structure. Rotating bodies are provided between the first supporting body and the second supporting body.

A pulley serving as a rotary body and a scale configured to rotate integrally with the pulley are attached to an end portion of the pulley serving as the rotary body in a thrust direction, a detection unit is configured to detect rotation of the pulley serving as the rotary body by reading a reading region of the scale. An absorber capable of absorbing liquid is attached to a surface of the scale on which a reading region is present, and when liquid adheres to the scale, the absorber absorbs the liquid.

A pulley serving as a rotary body and a scale configured to rotate integrally with the pulley are attached to an end portion of the pulley serving as the rotary body in a thrust direction, a detection unit is configured to detect rotation of the pulley serving as the rotary body by reading a reading region of the scale. An absorber capable of absorbing liquid is attached to a surface of the scale on which a reading region is present, and when liquid adheres to the scale, the absorber absorbs the liquid.