8results about "Micrometers" patented technology

This utility model discloses a micrometer with a support mechanism, relating to the field of micrometer technology. It includes a micrometer and an auxiliary support assembly. The micrometer includes a frame, a protruding block, and a rotating groove. The auxiliary support assembly includes a concave support plate and a rotating connector. The concave support plate is symmetrically attached to both sides of the frame and the protruding block. The rotating connector is fixed to the bottom of one side of the concave support plate and is rotatably connected to the inside of the rotating groove via a rotating rod. The two concave support plates rotate and unfold around the center of the rotating connector, providing support for the placement of the micrometer. This utility model, by setting up the auxiliary support assembly, allows the micrometer to be stably placed on a workbench for use. Furthermore, when the auxiliary support assembly is folded up, it does not affect the handheld operation of the micrometer, making it easy to carry and store.

The utility model discloses a kind of depth micrometer indication error testing tools, including testing tool base, support leg, depth micrometer and detection mechanism, four support legs are symmetrically fixed at the bottom four corners of testing tool base, detection mechanism is set at the top of testing tool base, and depth micrometer is connected and locked in detection mechanism.In the utility model, by setting detection mechanism, and then by depth micrometer measuring plate, baffle, standard gauge block are jointly combined to form detection structure, and by the connecting point of vertical and parallel arrangement, so that depth micrometer is detected, its measuring end is completely parallel with standard gauge block, avoid skew and cause data deviation, simultaneously adopt standard gauge block as reference, only need to compare micrometer reading and gauge block calibration size directly when detecting, eliminate the sight error of artificial alignment scale line, significantly improve detection reliability, traditional method needs to read micrometer and testing tool scale simultaneously.

This utility model discloses a test device that expands the application scenarios of dial indicator testing, relating to the field of dial indicator testing technology. It includes a support base, a support frame at the top of the support base, a lifting adjustment knob at the top of the support frame, a lead screw at the bottom of the lifting adjustment knob, a crossbeam connected to the outer wall of the lead screw via threads, a moving mechanism at the top of the crossbeam, a lever support at the top of the moving mechanism, a lever shaft connected to the inner wall of the lever support, a balance weight slidably connected to the middle of the lever, a measuring probe connected to one end of the lever via a first C-shaped hinge, and a probe vertical holding bracket sleeved around the measuring probe. This utility model avoids the size disadvantage of the dial indicator itself, enabling the dial indicator to be used for displacement and deformation measurement in small spaces, thus improving the efficiency of dial indicator use.

To provide a displacement measuring unit which removes a measured value obtained by bringing a measurement element into a measurement target by an inappropriate approach and can surely acquire a precise measured value.SOLUTION: A displacement measurement unit 1 includes: an encoder E for bringing a measurement element 2 into contact with a measurement target surface and detecting a moving displacement amount of the measurement element 2 by using the moving direction of the measurement element 2 as a measurement direction; operation means 4 for operating a measured value from at least the moving displacement amount; and display means 10 for displaying at least the measured value. The operation means 4 includes: a measurement unit 5 for calculating the measured value and causing the display means 10 to display the measured value; rate acquisition means 6 for acquiring the rate of the measurement element 2; an approach analysis unit 7 for determining whether approach of the measurement element 2 to the measurement target is normal or abnormal on the basis of the shift of the rate detected by the rate acquisition unit 6 in a predetermined period of time immediately before the measurement element 2 stops; and a warning unit 8 for issuing a warning in a case where the approach analysis unit 7 determines that approach of the measurement element 2 to the measurement target is abnormal.SELECTED DRAWING: Figure 2

There is provided a displacement measuring apparatus capable of reducing power consumption in a sleep mode. An operation mode of a signal processing unit includes a measurement operation execution mode to calculate a displacement or position as a measurement value using a sensor signal from a displacement sensor, and a sleep mode to reduce power consumption compared to the measurement operation execution mode. In the sleep mode, the signal processing unit performs a substitute calculation process at a predetermined sampling frequency to calculate a substitute value related to the displacement or position using fewer sensor signals than in the measurement operation execution mode. The operation-mode control unit assumes that a variation of the displacement sensor has been detected when there is a variation in the substitute value, cancels the sleep mode, and switches the signal processing unit to the measurement operation execution mode.

The application provides a differential head and a precision measuring device, and relates to the technical field of measuring instruments.The differential head comprises a fixed shaft sleeve provided with a first internal thread, a movable shaft sleeve provided with a second internal thread, a movable anvil fixedly connected with the movable shaft sleeve, a micrometer screw penetrating through the fixed shaft sleeve and the movable shaft sleeve, a fixed sleeve sleeved on the outer circumferential side of the fixed shaft sleeve, and a differential sleeve sleeved on the outer circumferential side of the fixed sleeve.The movable anvil is in sliding connection with the fixed shaft sleeve, the micrometer screw is provided with a first external thread and a second external thread with the same screw direction, the first external thread is in engagement with the first internal thread, the second external thread is in engagement with the second internal thread, the pitch of the first external thread is greater than the pitch of the second external thread, the fixed sleeve is fixedly connected with the fixed shaft sleeve, the differential sleeve is in rotational connection with the fixed sleeve and is fixedly connected with the micrometer screw.The differential head provided by the application has the same screw direction of the two sets of screw pairs and a difference between the pitches, so that the measuring precision is improved.

Electrically operated caliper (100, 400) configured to generate current for measuring operations, wherein the caliper (400) has: a scale element (102); a slide (130); a signal processing section (150) configured to measure a displacement between the scale element (102) and the slider (130); and a power generating device (405) that is fixed with respect to the slide (130) and which has: a power-generating gear train (432) configured to rotate in response to a force, the force being applied to the gear train (432) via a power-generating handle (410) by a user moving the power-generating handle (410) relative to the gear train (432); and a generator (431) which is coupled to the gear train (432) and configured to rotate in response to a force exerted by the rotating gear train (432) and to supply current to the signal processing part (150), wherein: the power generating device (405) generates electricity while the user moves the power generating handle (410); the power-generating device (405) is configured to contribute a motion resistance force component while the user moves the power-generating handle (410); and the gear train (432) has a force-limiting clutch (432C) which is configured to limit the resistance force component of the movement and the force-limiting clutch (432C) is configured such that the resistance force component of the movement is at most 20 N while the user moves the power-generating handle (410) with a maximum hand acceleration and / or with a maximum hand speed.

The application provides a detection device and method applied to a micrometer, and relates to the technical field of micrometer measurement. The detection device comprises a base, a first stand, a second stand and a third stand arranged on the base, a first clamping mechanism arranged on the first stand and used for clamping a ruler of a micrometer to be measured, a second clamping mechanism arranged on the third stand and used for clamping a lever micrometer to make a measuring head of the lever micrometer contact a part to be measured of a micrometer screw, and a force transmission assembly comprising a force transmission rod arranged in a longitudinal direction, a first traction part of a differential drum of the micrometer to be measured clamped at a central position of the force transmission rod, and a second traction part connected with an outer surface of the micrometer screw and used for applying upward force or downward force in the longitudinal direction to the micrometer screw.