https://kelibron.com/ 2026-10-07 weekly 1.0 https://kelibron.com/zh/ 2026-10-07 weekly 1.0 https://kelibron.com/guide/ 2026-10-07 weekly 0.9 https://kelibron.com/media/scenes/en/vernier-reading.webp https://kelibron.com/media/scenes/en/vernier-reading.webpRead a vernier caliper on a Ø25 shaft (readout view)Learn to measure with calipers — Practical guides to vernier, dial and digital calipers: how to read them, measure outside diameters, bores and depths, avoid common mistakes, judge tolerances and keep instruments calibrated — each with a matching 3D lab exercise.https://kelibron.com/media/scenes/en/vernier-reading.mp452026-10-07T08:00:00+08:00yes https://kelibron.com/zh/guide/ 2026-10-07 weekly 0.9 https://kelibron.com/media/scenes/zh/vernier-reading.webp https://kelibron.com/media/scenes/zh/vernier-reading.webp在 Ø25 轴上读游标卡尺（读数视角）学会用卡尺测量 — 游标、带表、数显卡尺的实用指南：怎么读数，怎么测外径、内孔和深度，常见错误用法，公差判定与量具校准——每篇都配有对应的三维实训场景。https://kelibron.com/media/scenes/zh/vernier-reading.mp452026-10-07T08:00:00+08:00yes https://kelibron.com/guide/reading/ 2026-10-07 monthly 0.7 https://kelibron.com/zh/guide/reading/ 2026-10-07 monthly 0.7 https://kelibron.com/guide/methods/ 2026-10-07 monthly 0.7 https://kelibron.com/zh/guide/methods/ 2026-10-07 monthly 0.7 https://kelibron.com/guide/tolerance/ 2026-10-07 monthly 0.7 https://kelibron.com/zh/guide/tolerance/ 2026-10-07 monthly 0.7 https://kelibron.com/guide/instruments/ 2026-10-07 monthly 0.7 https://kelibron.com/zh/guide/instruments/ 2026-10-07 monthly 0.7 https://kelibron.com/guide/training/ 2026-10-07 monthly 0.7 https://kelibron.com/zh/guide/training/ 2026-10-07 monthly 0.7 https://kelibron.com/guide/reading/caliper-basics/ 2026-10-07 monthly 0.8 https://kelibron.com/media/scenes/en/vernier-reading.webp https://kelibron.com/media/scenes/en/vernier-reading.webpRead a vernier caliper on a Ø25 shaft (readout view)How to read and use a caliper — Step-by-step guide to reading vernier (0.02 mm), dial and digital calipers, measuring outside diameter, bore and depth, checking zero, avoiding common mistakes and judging tolerances — with a free 3D caliper simulator.https://kelibron.com/media/scenes/en/vernier-reading.mp452026-10-07T08:00:00+08:00yes https://kelibron.com/zh/guide/reading/caliper-basics/ 2026-10-07 monthly 0.8 https://kelibron.com/media/scenes/zh/vernier-reading.webp https://kelibron.com/media/scenes/zh/vernier-reading.webp在 Ø25 轴上读游标卡尺（读数视角）卡尺使用与读数指南 — 游标卡尺（0.02 mm）、带表卡尺、数显卡尺的读数方法与使用步骤：外径、内径、深度测量，零位检查，常见错误用法及纠正，公差判定；配套免费三维卡尺仿真实训室。https://kelibron.com/media/scenes/zh/vernier-reading.mp452026-10-07T08:00:00+08:00yes https://kelibron.com/guide/reading/vernier-caliper/ 2026-10-07 monthly 0.8 https://kelibron.com/media/scenes/en/vernier-reading.webp https://kelibron.com/media/scenes/en/vernier-reading.webpRead a vernier caliper on a Ø25 shaft (readout view)How to read a vernier caliper — Read a vernier caliper step by step: main scale plus coinciding vernier line × least count. 10-, 20- and 50-division verniers (0.1, 0.05, 0.02 mm), positive and negative zero error, parallax, practice examples and a free online vernier caliper simulator.https://kelibron.com/media/scenes/en/vernier-reading.mp452026-10-07T08:00:00+08:00yes https://kelibron.com/zh/guide/reading/vernier-caliper/ 2026-10-07 monthly 0.8 https://kelibron.com/media/scenes/zh/vernier-reading.webp https://kelibron.com/media/scenes/zh/vernier-reading.webp在 Ø25 轴上读游标卡尺（读数视角）游标卡尺怎么读 — 游标卡尺读数方法：主尺整毫米数 + 对齐游标格数 × 精度。10分度、20分度、50分度游标卡尺（0.1、0.05、0.02 mm）读数规则，正负零误差修正，视差，读数例题，并可在线游标卡尺仿真练习。https://kelibron.com/media/scenes/zh/vernier-reading.mp452026-10-07T08:00:00+08:00yes https://kelibron.com/guide/reading/dial-caliper/ 2026-10-07 monthly 0.8 https://kelibron.com/media/scenes/en/dial-reading.webp https://kelibron.com/media/scenes/en/dial-reading.webpRead a dial caliper on a bushing (readout view)How to read a dial caliper — Read a dial caliper: whole millimetres on the beam plus hundredths on the dial. One needle revolution is 1 mm in 100 divisions. How to zero the bezel, lock it, avoid shock and read without parallax — and practise online.https://kelibron.com/media/scenes/en/dial-reading.mp452026-10-07T08:00:00+08:00yes https://kelibron.com/zh/guide/reading/dial-caliper/ 2026-10-07 monthly 0.8 https://kelibron.com/media/scenes/zh/dial-reading.webp https://kelibron.com/media/scenes/zh/dial-reading.webp在轴套上读带表卡尺（读数视角）带表卡尺怎么读 — 带表卡尺读数方法：尺身读整毫米，表盘读百分位，指针一圈 1 mm、100 格。表圈调零与锁紧、防摔防撞、避免视差，以及在线带表卡尺练习。https://kelibron.com/media/scenes/zh/dial-reading.mp452026-10-07T08:00:00+08:00yes https://kelibron.com/guide/reading/digital-caliper/ 2026-10-07 monthly 0.8 https://kelibron.com/media/scenes/en/digital-reading.webp https://kelibron.com/media/scenes/en/digital-reading.webpDigital caliper on a stepped shaft (readout view)How to use a digital caliper — Digital caliper buttons explained: ORIGIN sets the absolute zero, ZERO/ABS switches to relative (INC) measurement and back, UNIT switches mm/inch, HOLD freezes the value. Resolution versus accuracy, battery, IP rating, data output, and online practice.https://kelibron.com/media/scenes/en/digital-reading.mp452026-10-07T08:00:00+08:00yes https://kelibron.com/zh/guide/reading/digital-caliper/ 2026-10-07 monthly 0.8 https://kelibron.com/media/scenes/zh/digital-reading.webp https://kelibron.com/media/scenes/zh/digital-reading.webp数显卡尺测台阶轴（读数视角）数显卡尺怎么用 — 数显卡尺按键说明：ORIGIN 设定绝对零点，ZERO/ABS 切换相对测量（INC）与绝对测量，UNIT 切换毫米/英寸，HOLD 锁定读数；分辨力与准确度的区别、电池、防护等级、数据输出及在线练习。https://kelibron.com/media/scenes/zh/digital-reading.mp452026-10-07T08:00:00+08:00yes https://kelibron.com/guide/reading/physics-length-measurement/ 2026-10-07 monthly 0.8 https://kelibron.com/media/scenes/en/vernier-reading.webp https://kelibron.com/media/scenes/en/vernier-reading.webpRead a vernier caliper on a Ø25 shaft (readout view)Physics practical: length measurement — School physics length measurement: least count of a vernier caliper and a screw gauge, zero error correction, significant figures, measuring outer diameter, inner diameter and depth of a tube or beaker, and exam-style reading questions.https://kelibron.com/media/scenes/en/vernier-reading.mp452026-10-07T08:00:00+08:00yes https://kelibron.com/zh/guide/reading/physics-length-measurement/ 2026-10-07 monthly 0.8 https://kelibron.com/media/scenes/zh/vernier-reading.webp https://kelibron.com/media/scenes/zh/vernier-reading.webp在 Ø25 轴上读游标卡尺（读数视角）高中物理：长度的测量 — 高中物理“长度的测量”实验：10、20、50 分度游标卡尺与螺旋测微器（千分尺）读数方法，零误差修正，有效数字与单位换算，测量试管外径、内径和深度，常见读数题易错点，在线游标卡尺仿真练习。https://kelibron.com/media/scenes/zh/vernier-reading.mp452026-10-07T08:00:00+08:00yes https://kelibron.com/guide/methods/measuring-common-parts/ 2026-10-07 monthly 0.8 https://kelibron.com/media/scenes/en/shaft-outside.webp https://kelibron.com/media/scenes/en/shaft-outside.webpMeasure a Ø25 shaftMeasuring common parts — Practical measuring routines for common machined parts: shafts (several positions, two directions), bushings (OD, bore, length, wall), flanges (OD, bore, thickness, hole pitch), gear tip diameter (even and odd teeth) and blind-hole depth.https://kelibron.com/media/scenes/en/shaft-outside.mp452026-10-07T08:00:00+08:00yes https://kelibron.com/zh/guide/methods/measuring-common-parts/ 2026-10-07 monthly 0.8 https://kelibron.com/media/scenes/zh/shaft-outside.webp https://kelibron.com/media/scenes/zh/shaft-outside.webp测量 Ø25 轴外径常见工件怎么测 — 常见机加工件的卡尺测量流程：轴（多截面、两个方向）、轴套（外径、内孔、长度、壁厚）、法兰（外径、内孔、厚度、孔距）、齿轮齿顶圆（偶数齿与奇数齿）以及盲孔深度。https://kelibron.com/media/scenes/zh/shaft-outside.mp452026-10-07T08:00:00+08:00yes https://kelibron.com/guide/methods/step-and-center-distance/ 2026-10-07 monthly 0.8 https://kelibron.com/media/scenes/en/digital-reading.webp https://kelibron.com/media/scenes/en/digital-reading.webpDigital caliper on a stepped shaft (readout view)Steps, hole-to-edge and centre distance — Measure a step height with the depth rod or the step faces, hole-to-edge distance, and the centre distance of two holes with a caliper: C = L(outer) − (d1 + d2)/2 or C = L(inner) + (d1 + d2)/2, with examples and accuracy notes.https://kelibron.com/media/scenes/en/digital-reading.mp452026-10-07T08:00:00+08:00yes https://kelibron.com/zh/guide/methods/step-and-center-distance/ 2026-10-07 monthly 0.8 https://kelibron.com/media/scenes/zh/digital-reading.webp https://kelibron.com/media/scenes/zh/digital-reading.webp数显卡尺测台阶轴（读数视角）卡尺测台阶、孔边距与中心距 — 用卡尺测台阶高度（深度尺或台阶测量面）、孔到边距离和两孔中心距：C = L外 − (d1 + d2)/2 或 C = L内 + (d1 + d2)/2，附例题与精度注意事项。https://kelibron.com/media/scenes/zh/digital-reading.mp452026-10-07T08:00:00+08:00yes https://kelibron.com/guide/methods/measurement-errors/ 2026-10-07 monthly 0.8 https://kelibron.com/media/scenes/en/error-tilt.webp https://kelibron.com/media/scenes/en/error-tilt.webpWrong use: caliper tilted on a shaftCaliper measurement errors and how to avoid them — Why caliper readings go wrong and how to avoid it: parallax, Abbe error, tilt along the axis (L / cos α), zero error, measuring force, dirt and burrs, temperature, worn jaws, off-centre bore readings and unseated depth readings.https://kelibron.com/media/scenes/en/error-tilt.mp452026-10-07T08:00:00+08:00yes https://kelibron.com/zh/guide/methods/measurement-errors/ 2026-10-07 monthly 0.8 https://kelibron.com/media/scenes/zh/error-tilt.webp https://kelibron.com/media/scenes/zh/error-tilt.webp错误用法：卡尺倾斜测轴卡尺测量误差及避免方法 — 卡尺读数为什么会错、如何避免：视差、阿贝误差、沿轴倾斜（L / cos α）、零误差、测量力、脏物毛刺、温度、量爪磨损，以及测孔偏离中心、测深尺身未贴紧等误差。https://kelibron.com/media/scenes/zh/error-tilt.mp452026-10-07T08:00:00+08:00yes https://kelibron.com/guide/tolerance/tolerances-and-fits/ 2026-10-07 monthly 0.8 https://kelibron.com/media/scenes/en/shaft-reject.webp https://kelibron.com/media/scenes/en/shaft-reject.webpJudge an oversize shaft (rejected)Tolerances and fits basics — Limits and fits for beginners: nominal size, upper and lower deviation, tolerance band, IT grades, hole-basis (H) and shaft-basis (h) systems, clearance, transition and interference fits, with worked examples (Ø20H7/g6) and how to judge pass or fail.https://kelibron.com/media/scenes/en/shaft-reject.mp452026-10-07T08:00:00+08:00yes https://kelibron.com/zh/guide/tolerance/tolerances-and-fits/ 2026-10-07 monthly 0.8 https://kelibron.com/media/scenes/zh/shaft-reject.webp https://kelibron.com/media/scenes/zh/shaft-reject.webp判定超差的轴（不合格）公差配合入门 — 公差与配合基础：公称尺寸、上偏差与下偏差、公差带、标准公差等级 IT、基孔制（H）与基轴制（h）、间隙配合、过渡配合、过盈配合，Ø20H7/g6 算例，以及测量后如何判定合格。https://kelibron.com/media/scenes/zh/shaft-reject.mp452026-10-07T08:00:00+08:00yes https://kelibron.com/guide/tolerance/choosing-instruments/ 2026-10-07 monthly 0.8 https://kelibron.com/media/scenes/en/digital-pin.webp https://kelibron.com/media/scenes/en/digital-pin.webpDigital caliper: Ø12 ±0.03 pinCaliper or micrometer? Choosing the instrument — Choose the instrument from the tolerance: its accuracy should be about one tenth of the tolerance band. When a caliper is enough, when you need a micrometer, a dial indicator or a plug gauge, and how a micrometer is read.https://kelibron.com/media/scenes/en/digital-pin.mp452026-10-07T08:00:00+08:00yes https://kelibron.com/zh/guide/tolerance/choosing-instruments/ 2026-10-07 monthly 0.8 https://kelibron.com/media/scenes/zh/digital-pin.webp https://kelibron.com/media/scenes/zh/digital-pin.webp数显卡尺测 Ø12 ±0.03 销卡尺还是千分尺？按公差选量具 — 量具怎么选：量具的准确度约为工件公差的十分之一。什么时候用卡尺就够，什么时候要用千分尺、百分表或塞规，卡尺和千分尺精度对比，千分尺怎么读。https://kelibron.com/media/scenes/zh/digital-pin.mp452026-10-07T08:00:00+08:00yes https://kelibron.com/guide/tolerance/measurement-uncertainty/ 2026-10-07 monthly 0.8 https://kelibron.com/media/scenes/en/digital-reading.webp https://kelibron.com/media/scenes/en/digital-reading.webpDigital caliper on a stepped shaft (readout view)Measurement uncertainty basics — An introduction to measurement uncertainty (GUM): error versus uncertainty, Type A from repeated readings, Type B from specifications and resolution, combined and expanded uncertainty with k = 2, worked for a caliper reading.https://kelibron.com/media/scenes/en/digital-reading.mp452026-10-07T08:00:00+08:00yes https://kelibron.com/zh/guide/tolerance/measurement-uncertainty/ 2026-10-07 monthly 0.8 https://kelibron.com/media/scenes/zh/digital-reading.webp https://kelibron.com/media/scenes/zh/digital-reading.webp数显卡尺测台阶轴（读数视角）测量不确定度入门 — 测量不确定度基础（GUM / JJF 1059.1）：误差与不确定度的区别，重复测量的 A 类评定，按规格和分辨力的 B 类评定，合成标准不确定度与 k = 2 扩展不确定度，附卡尺测量算例。https://kelibron.com/media/scenes/zh/digital-reading.mp452026-10-07T08:00:00+08:00yes https://kelibron.com/guide/instruments/caliper-care-calibration/ 2026-10-07 monthly 0.8 https://kelibron.com/media/scenes/en/error-zero-digital.webp https://kelibron.com/media/scenes/en/error-zero-digital.webpWrong use: digital caliper not set to ORIGINCaliper care and calibration — Keep a caliper accurate: clean and check zero before use, check the jaws against light, verify with gauge blocks across the range, calibrate at a fixed interval to ISO 13385-1 or your national procedure, and store it correctly.https://kelibron.com/media/scenes/en/error-zero-digital.mp452026-10-07T08:00:00+08:00yes https://kelibron.com/zh/guide/instruments/caliper-care-calibration/ 2026-10-07 monthly 0.8 https://kelibron.com/media/scenes/zh/error-zero-digital.webp https://kelibron.com/media/scenes/zh/error-zero-digital.webp错误用法：数显卡尺未按 ORIGIN 归零卡尺保养与校准 — 卡尺怎样保持准确：使用前擦净、检查零位和透光，定期用量块在量程内多点校准，按 JJG 30 通用卡尺检定规程或 ISO 13385-1 管理校准周期，正确存放与保养。https://kelibron.com/media/scenes/zh/error-zero-digital.mp452026-10-07T08:00:00+08:00yes https://kelibron.com/guide/instruments/gauge-management/ 2026-10-07 monthly 0.8 https://kelibron.com/media/scenes/en/error-zero-digital.webp https://kelibron.com/media/scenes/en/error-zero-digital.webpWrong use: digital caliper not set to ORIGINGauge management and calibration records — Set up gauge control for a workshop or lab: an instrument register, calibration intervals, status labels, a calibration record template, and what to do when a gauge is found out of tolerance — in line with ISO 9001 clause 7.1.5 and ISO 10012.https://kelibron.com/media/scenes/en/error-zero-digital.mp452026-10-07T08:00:00+08:00yes https://kelibron.com/zh/guide/instruments/gauge-management/ 2026-10-07 monthly 0.8 https://kelibron.com/media/scenes/zh/error-zero-digital.webp https://kelibron.com/media/scenes/zh/error-zero-digital.webp错误用法：数显卡尺未按 ORIGIN 归零量具管理制度与校准记录 — 车间与实训室量具管理怎么做：量具台账、校准周期、状态标识（合格/准用/停用）、卡尺校准记录模板，以及发现量具超差后的处理，符合 ISO 9001 第 7.1.5 条与 ISO 10012。https://kelibron.com/media/scenes/zh/error-zero-digital.mp452026-10-07T08:00:00+08:00yes https://kelibron.com/guide/training/teaching/ 2026-10-07 monthly 0.8 https://kelibron.com/media/scenes/en/vernier-reading.webp https://kelibron.com/media/scenes/en/vernier-reading.webpRead a vernier caliper on a Ø25 shaft (readout view)Teaching and training with KELIBRON — Use KELIBRON, a free online caliper simulator, to teach measurement: classroom demonstrations, pre-lab practice, remote lessons, physics length measurement, vocational machining and quality-inspection courses, apprentice and new-hire QC training, skills competitions.https://kelibron.com/media/scenes/en/vernier-reading.mp452026-10-07T08:00:00+08:00yes https://kelibron.com/zh/guide/training/teaching/ 2026-10-07 monthly 0.8 https://kelibron.com/media/scenes/zh/vernier-reading.webp https://kelibron.com/media/scenes/zh/vernier-reading.webp在 Ø25 轴上读游标卡尺（读数视角）用 KELIBRON 做测量教学与培训 — 用免费的在线卡尺仿真实训室 KELIBRON 开展测量教学：课堂演示、实训课前预习、线上教学、高中物理长度测量、机械类专业“互换性与技术测量”等课程、质检员和车铣钳工岗前培训、技能大赛训练。https://kelibron.com/media/scenes/zh/vernier-reading.mp452026-10-07T08:00:00+08:00yes https://kelibron.com/guide/training/skills-certification/ 2026-10-07 monthly 0.8 https://kelibron.com/media/scenes/en/shaft-outside.webp https://kelibron.com/media/scenes/en/shaft-outside.webpMeasure a Ø25 shaftMeasuring skills for certification and competitions — What practical assessments for machinists, fitters and quality inspectors look for when you measure: instrument check and zero, clean faces, correct technique for outside, inside and depth, reading to the resolution, recording, pass/fail judgement and instrument care.https://kelibron.com/media/scenes/en/shaft-outside.mp452026-10-07T08:00:00+08:00yes https://kelibron.com/zh/guide/training/skills-certification/ 2026-10-07 monthly 0.8 https://kelibron.com/media/scenes/zh/shaft-outside.webp https://kelibron.com/media/scenes/zh/shaft-outside.webp测量 Ø25 轴外径考证与技能大赛的量具使用要点 — 车工、钳工、铣工、数控车铣、机械产品检验工等职业技能等级认定和技能大赛实操中，量具使用的考核要点：量具检查与校零、清洁、外径内径深度的正确测法、按精度读数与记录、合格判定和量具保养，以及常见扣分点。https://kelibron.com/media/scenes/zh/shaft-outside.mp452026-10-07T08:00:00+08:00yes