vernier caliper kaise istemaal kare

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  • เผยแพร่เมื่อ 5 ต.ค. 2024
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    A vernier caliper is a precision measuring instrument used to measure the dimensions of an object with high accuracy. It consists of two main parts: the main scale and the sliding vernier scale. Here's an overview of its components and how to use it:
    Components:
    Main Scale: This is the primary, fixed scale on the vernier caliper. It is typically graduated in millimeters or inches and provides the main reading.
    Vernier Scale: The vernier scale is a secondary, movable scale that slides along the main scale. It has divisions slightly smaller than those on the main scale.
    Jaws: The jaws of the caliper are used to hold the object being measured. There is an outer set for external measurements (outside jaws) and an inner set for internal measurements (inside jaws).
    Depth Gauge: Some vernier calipers come with a depth gauge attached to the end for measuring depths.
    How to Use a Vernier Caliper:
    External Measurement:
    Close the jaws around the object you want to measure using the outside jaws.
    Read the main scale value aligned with the zero mark on the vernier scale.
    Find the vernier scale division that aligns best with a division on the main scale. The value of this vernier scale division gives the decimal part of the measurement.
    Internal Measurement:
    Use the inside jaws to measure the internal diameter of a hole, for example.
    The process is similar to external measurement, but you use the inside jaws to grip the object.
    Depth Measurement:
    Extend the depth gauge and place it into the object or hole to measure its depth.
    Zero Error Check:
    Ensure there is no zero error. The zero mark on the vernier scale should align with the zero mark on the main scale when the jaws are closed and no object is being measured.
    Vernier calipers provide a high level of accuracy, and proper use requires practice and attention to detail. Understanding the markings on both the main and vernier scales is essential for obtaining precise measurements.
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