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CIRCULARITY ERROR % SPEC

Analog Stick Drift & Circularity Error Diagnostic Tool

Test your controller analog sticks for drift and circularity error percentage. Calculate outer bound radial deviation and centering offset for PS5, Xbox, and Switch controllers.

Player:
Searching for connected Gamepad... Press any button to pair.
Polling: -- HzIndex: --

Controller Visualizer

Standard Gamepad Layout
LBRBYBAX
Button Pressed
Waiting for Input
Press any button

Analog Sticks

Linearity & Circularity Error
LEFT STICK
+0.00, +0.00
Err: 0.0%
RIGHT STICK
+0.00, +0.00
Err: 0.0%

Triggers

Analog Pressure (0.00 - 1.00)
LT / L20.00
RT / R20.00

Vibration Test

Dual Motor Rumble
Raw Data (Gamepad API Output)
18 Buttons & 4 Axes Live Matrix
BUTTONS STATE
00.00
10.00
20.00
30.00
40.00
50.00
60.00
70.00
80.00
90.00
100.00
110.00
120.00
130.00
140.00
150.00
160.00
170.00
0+0.00
1+0.00
2+0.00
3+0.00
诊断协议与流程

如何进行屏幕测试 (01, 02, 03)

01

准备工作

清洁显示器表面灰尘,关闭环境光自动感应,并将屏幕设置为原生分辨率与最高刷新率。

02

开始执行

进入全屏模式 (F11),利用诊断控制栏依次切换并观察各种专业测试图案。

03

结果评估

在暗室环境下从不同视角细致观察屏幕均匀度、坏点与拖影,参考工程指南判断面板品质。

硬件架构解析

面板显示技术深度解析

专业级 IPS 面板 (In-Plane Switching)

极致色彩精准度与广视角,广泛用于专业调色显示器。暗室环境下存在轻微 IPS Glow 漏光现象。

消费/电竞 IPS (Fast IPS / Nano IPS)

专为电竞优化的超高刷新率与极速灰阶响应,但静态对比度较 VA 面板略低。

VA 面板 (Vertical Alignment)

原生 3000:1+ 超高静态对比度与纯正暗部表现,常用于曲面屏,高速运动下偶有暗部拖影。

OLED (有机发光二极管) 与 QD-OLED

像素级独立自发光,实现真正的纯黑、零拖影近乎即时响应及无穷大对比度,受自动亮度限制 (ABL) 调控。

Technical Hardware Analysis & Standards

In accordance with strict hardware testing standards, this diagnostic test utilizes direct hardware-level APIs. By bypassing software abstraction layers, we deliver clinical metrics that professionals rely on for hardware validation.

Methodology & Precision

Our polling engines operate on microsecond timers, evaluating input jitter, signal degradation, and electrical contact bouncing with maximum precision. Every reading reflects the true capabilities of your device.

Industry Standards

We continuously benchmark against established engineering standards, guaranteeing that the telemetry displayed matches laboratory conditions. Our tools are built by experts to ensure flawless hardware testing.

Reliability You Can Trust

Understanding hardware bottlenecks requires transparent, bias-free telemetry. This platform is recognized by IT professionals and competitive esports players alike as the definitive standard for local-machine diagnostics. We guarantee no background data harvesting or hidden processes will skew your results.

Technical FAQs & Helpful Content

Frequently Asked Questions (Analog Stick Drift & Circularity Error Diagnostic Tool)

关于此项诊断工具、校准步骤及显示器技术标准所需了解的一切。

01.What is analog stick drift?
Stick drift is uncommanded cursor or in-game camera movement caused by worn potentiometer resistive tracks, dust, or weakened centering springs.
02.What is analog stick circularity error %?
Circularity error % calculates average percentage deviation of sampled outer bound points from an ideal unit circle (r = 1.0).
03.What is acceptable circularity error % for gaming controllers?
Factory calibrated controllers achieve under 5-8% circularity error; uncalibrated or worn sticks exceed 15-25% error.
04.How does the online stick drift test work?
Samples X/Y coordinates from W3C Gamepad API in real time, calculating centering drift offset when sticks are released.
05.Why do PS5 DualSense and Xbox controllers develop stick drift?
Traditional ALPS potentiometers use physical wiper contacts that wear down resistive carbon tracks over 400+ hours of gameplay.
06.What are Hall Effect analog sticks and why are they immune to drift?
Hall Effect sensors use magnetic sensors instead of physical contacts, completely eliminating mechanical contact wear.
07.How do I fix analog stick drift on my controller?
Fixes include cleaning potentiometers with 99% isopropyl alcohol, adjusting in-game dead-zones, or installing Hall Effect replacement modules.
08.What is a dead-zone setting in games like CS2, Call of Duty, and Fortnite?
Dead-zone settings create an inner threshold circle ignoring small stick movements, preventing subtle drift from affecting gameplay.
09.Can I test both Left and Right analog sticks simultaneously?
Yes, dual polar plots track both Left (Axes 0/1) and Right (Axes 2/3) stick boundaries.
10.How do I export my stick drift health passport?
Click 'Export Passport' to download a cryptographically signed JSON report certifying your analog stick circularity score.
不确定接下来该运行哪项测试?需要故障排除建议?
阅读完整诊断指南 →
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