From b28f97f3526859633fde603764b827389279d10f Mon Sep 17 00:00:00 2001
From: Denis Chevalier <perso@denischevalier.fr>
Date: Mon, 10 Aug 2026 22:32:38 +0200
Subject: extract figures in separate files

---
 ...electric-absorption-noise-typical-magnitude.typ | 98 ++++++++++++++++++++++
 1 file changed, 98 insertions(+)
 create mode 100644 charts/capacitor-dielectric-absorption-noise-typical-magnitude.typ

(limited to 'charts/capacitor-dielectric-absorption-noise-typical-magnitude.typ')

diff --git a/charts/capacitor-dielectric-absorption-noise-typical-magnitude.typ b/charts/capacitor-dielectric-absorption-noise-typical-magnitude.typ
new file mode 100644
index 0000000..d15bfb4
--- /dev/null
+++ b/charts/capacitor-dielectric-absorption-noise-typical-magnitude.typ
@@ -0,0 +1,98 @@
+#import "../lib/unify.typ": qty, unit
+#import "@preview/cetz:0.5.2"
+#import "@preview/cetz-plot:0.1.4": plot
+
+#figure(
+  cetz.canvas({
+    import cetz.draw: *
+
+    plot.plot(
+      size: (12, 9),
+      y-mode: "log",
+      x-label: [Time $t$ ($unit("s")$)],
+      y-label: [Residual Voltage $V_upright("DA")$ ($unit("mV")$)],
+      x-min: 0.001,
+      x-max: 9,
+      y-min: 0.01,
+      y-max: 500,
+      x-grid: "minor",
+      y-grid: "minor",
+      {
+        // 200 uV (0.2 mV) Metrologic systematic error budget limit
+        plot.add(
+          ((0.001, 0.2), (10, 0.2)),
+          style: (
+            stroke: (paint: luma(120), thickness: 0.8pt, dash: "dash-dotted"),
+          ),
+          label: [Budget limit ($qty(200, "uV")$)],
+        )
+        // Ceramic X7R (DA = 2.5%, 10 V step -> 250 mV initial soakage peak)
+        plot.add(
+          style: (stroke: (dash: "solid")),
+          label: [Ceramic (X7R / Class 2)],
+          domain: (0.001, 10),
+          samples: 10000,
+          t => (
+            250
+              * (
+                0.5 * calc.exp(-t / 0.01) + 0.3 * calc.exp(-t / 0.1) + 0.2 * calc.exp(-t / 1.0)
+              )
+          ),
+        )
+        // Polypropylene PP (DA = 0.05%, 10 V step -> 5 mV initial soakage peak)
+        plot.add(
+          style: (stroke: (dash: "dotted")),
+          label: [Polypropylene (PP)],
+          domain: (0.001, 10),
+          samples: 10000,
+          t => (
+            5
+              * (
+                0.5 * calc.exp(-t / 0.01) + 0.3 * calc.exp(-t / 0.1) + 0.2 * calc.exp(-t / 1.0)
+              )
+          ),
+        )
+        // Polystyrene PP (DA = 0.002, 10 V step -> 2 mV initial soakage peak)
+        plot.add(
+          style: (stroke: (dash: "dashed")),
+          label: [Polystyrene (PS)],
+          domain: (0.001, 10),
+          samples: 10000,
+          t => (
+            2
+              * (
+                0.5 * calc.exp(-t / 0.01) + 0.3 * calc.exp(-t / 0.1) + 0.2 * calc.exp(-t / 1.0)
+              )
+          ),
+        )
+        // Teflon PTFE (DA = 0.001, 10 V step -> 1 mV initial soakage peak)
+        plot.add(
+          style: (stroke: (dash: "dash-dotted")),
+          label: [Teflon (PTFE)],
+          domain: (0.001, 10),
+          samples: 10000,
+          t => (
+            1
+              * (
+                0.5 * calc.exp(-t / 0.01) + 0.3 * calc.exp(-t / 0.1) + 0.2 * calc.exp(-t / 1.0)
+              )
+          ),
+        )
+        // Class 1 C0G/NP0 Ceramic (DA = 0.005%, 10 V step -> 0.5 mV initial soakage peak)
+        plot.add(
+          style: (stroke: (dash: (6pt, 2pt, 2pt, 2pt))),
+          label: [Class 1 (C0G/NP0)],
+          domain: (0.001, 10),
+          samples: 10000,
+          t => (
+            0.5
+              * (
+                0.5 * calc.exp(-t / 0.01) + 0.3 * calc.exp(-t / 0.1) + 0.2 * calc.exp(-t / 1.0)
+              )
+          ),
+        )
+      },
+    )
+  }),
+  caption: [Capacitor dielectric absorption residual voltage relaxation ($V_upright("DA")$) over time following a $qty(10, "V")$ step voltage reset, comparing dielectric classes against the $qty(200, "uV")$ systematic error budget],
+) <figure-capacitor-dielectric-absorption-noise-typical-magnitude>
-- 
cgit