Abstract: A rotor securing jig secures a rotor extending along an axis inside a container. The rotor securing jig includes a first member that is able to be secured to a first end portion of the rotor, which is an end portion of the rotor on a first side in an axial direction, a second member that is provided relatively movable in the axial direction with respect to the first member, and a third member that is secured to the container, has a first abutting surface facing a second side in the axial direction, which is an opposite side to the first side, and abutting the first member, and has a second abutting surface facing the first side and abutting the second member.

Abstract: An electronic caliper generates power for measurement operations. The caliper comprises a scale member, a slider, a signal processing portion configured to measure a displacement between the scale member and slider, a power generating arrangement attached to the slider comprising a gear assembly configured to rotate in response to a force provided through a power generating handle to the gear assembly by a user moving the power generating handle relative to the gear assembly, and a power generator coupled to the gear assembly and configured to rotate in response to force provided by the rotating gear assembly and provide power to the signal processing portion. The power generating arrangement generates power as the user moves the power generating handle, and the power generating arrangement contributes a motion resistance force component of at most 20N as the user moves the power generating handle with a maximum manual acceleration.

Abstract: Tool for measuring of the diameter of a body with circular cross section, where two arms (1) are provided in a fixed angle to another, in that a distance sensor device (2) is provided axially between the two arms (1), in that the distance sensor device (2) is adapted to register a contact point for the distance sensor device (2) against the body with respect to the contact points of the arms against the body, and that a viewing device (3) is adapted to calculate and show the diameter of the circle on the basis of the three contact points on the circle.

Abstract: A measurement probe 1 for measuring a surface of sample S comprises a base section 10, a head section 30 having a probe tip 31, and a support structure section 15 which supports the head section 30 with the base section 10 along a support axis substantially orthogonal to the vertical axis in the direction of protrusion of the probe tip 31. The support structure section 15 includes two spring structure sections of a first spring structure section 20 deformable in the direction of the vertical axis; and a second spring structure section 25 deformable in the direction of the lateral axis, and a reflection surface 32 which is formed with a reflection pattern varying the reflectance within the surface is provided at the side opposite to the probe tip 31 of the head section 30.

Abstract: The present invention is directed to an apparatus and method for marking an angles relative to a baseline, the apparatus comprising two elongate arms, one arm having a length greater than that of the other, the arms being pivotally joined at one end by a connecting means having an aperture and anchoring means attached to the other ends for anchoring the arms to a first marker at one end of the baseline and a second marker marking the other end of the baseline to a specified length. The baseline length determines the size of the angles given the constant lengths of the first and second arms. The method may be employed by a single unskilled user to mark angles of any size greater than 0 and less than 180 degrees. The apparatus may be sized and proportioned for use on projects of widely varying scales.

Abstract: A downhole caliper instrument utilizing a linear or arcuate magneto resistive sensor to determine the position of one or more caliper arms which extend from a carrier tool to touch the surface of a borehole wall. A processor and firmware are included to calculate and plot the borehole radius. A plurality of magneto resistive sensors are provided to calculate the sine, cosine and tangent for accurate motion of each independent arm. The magneto resistive sensors sense the position a precise magnetic ruler linked to the caliper arm. The position of the caliper arm determines the radius of the borehole. Calculation of Radius/Diameter is preferably performed in the computer on surface. The downhole controller's firmware controls the multiplexer switching, A/D conversion and other functions.

Abstract: A downhole caliper instrument utilizing a magneto resistive sensor to determine the position of a caliper arm which extends to touch the surface of the borehole wall.