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📃 docs(measurements ranges docs and texts slightly improved):
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‎Delta_mode_Keithley_6221_2182/Delta_RT_K6221_K2182_L350_Sensing_Frontend_v5.py‎

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@@ -309,7 +309,7 @@ def create_info_frame(self, parent):
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details_text = ("Program Mode: R vs. T (Passive Sensing)\n"
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"Instruments: Keithley 6221/2182, Lakeshore 350\n"
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"Measurement Range: 10⁻⁹ Ω to 10⁸ Ω")
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"Measurement Range: ~10 nΩ to 200 MΩ")
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ttk.Label(frame, text=details_text, justify='left').grid(row=3, column=0, columnspan=2, padx=15, pady=(0, 10), sticky='w')
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def _load_logo(self, canvas):

‎Delta_mode_Keithley_6221_2182/Delta_RT_K6221_K2182_L350_T_Control_Frontend_v5.py‎

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@@ -283,7 +283,7 @@ def create_info_frame(self, parent):
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details_text = ("Program Name: Delta Mode R vs. T (T-Control)\n"
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"Instruments: Keithley 6221/2182, Lakeshore 350\n"
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"Measurement Range: 10⁻⁹ Ω to 10⁸ Ω")
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"Measurement Range: ~10 nΩ to 200 MΩ")
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ttk.Label(frame, text=details_text, justify='left').grid(row=3, column=0, columnspan=2, padx=15, pady=(0, 10), sticky='w')
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def _load_logo(self, canvas):

‎PICA_README.md‎

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@@ -140,7 +140,7 @@ Here is a meticulously verified summary of the key measurement specifications fo
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| **Resistance** | **1 Ω** | **> 10 PΩ** ($10^{16}$ Ω) | **Derived** (from I-measure) |
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| **Current (Pyroelectric)** | **10 aA** ($10 \times 10^{-18}$ A) | **20 mA** | **10 aA** |
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| **Voltage** | **1 µV** | **200 V** | **1 µV** |
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| **Charge** | **10 fC** | **2 µC** | **10 fC** |
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| **Charge** | **1 fC** | **2 µC** | **10 fC** |
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---
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‎PICA_v6.py‎

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@@ -299,7 +299,7 @@ def _configure_scrollable_frame(event):
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GROUP_PAD_Y = 15
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# --- Left Column Suites ---
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self._create_suite_frame(left_col, 'Low Resistance (~10 nΩ to 1 GΩ)', "Current Driven", "Instruments: Keithley 6221/2182, Lakeshore 350", [
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self._create_suite_frame(left_col, 'Low Resistance (~10 nΩ to 200 MΩ)', "Current Driven", "Instruments: Keithley 6221/2182, Lakeshore 350", [
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("Sweep Mode I-V ", "Delta Mode I-V Sweep"),
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("Delta Mode R vs. T (T_Control)", "Delta Mode R-T"),
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("Delta Mode R vs. T (T_Sensing)", "Delta Mode R-T (T_Sensing)"),
@@ -316,7 +316,7 @@ def _configure_scrollable_frame(event):
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])
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# --- Right Column Suites ---
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self._create_suite_frame(right_col, 'High Resistance (<10 Ω to >10 PΩ)', "Voltage Driven", "Instruments: Keithley 6517B, Lakeshore 350", [
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self._create_suite_frame(right_col, 'High Resistance (1 Ω to >10 PΩ)', "Voltage Driven", "Instruments: Keithley 6517B, Lakeshore 350", [
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("I-V Sweep", "K6517B I-V"),
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("R vs. T (T_Control)", "K6517B R-T"),
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("R vs. T (T_Sensing)", "K6517B R-T (T_Sensing)"),

‎Picachu.py‎

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@@ -315,24 +315,24 @@ def _on_mousewheel_linux_macos(event):
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GROUP_PAD_Y = 15
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# --- Left Column Suites ---
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self._create_suite_frame(left_col, 'Low Resistance (10⁻⁹ Ω to 10⁸ Ω)', "Current Driven", "Instruments: Keithley 6221/2182, Lakeshore 350", [
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self._create_suite_frame(left_col, 'Low Resistance (~10 nΩ to 200 MΩ)', "Current Driven", "Instruments: Keithley 6221/2182, Lakeshore 350", [
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("Delta Mode I-V Sweep", "Delta Mode I-V Sweep"),
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("Delta Mode R vs. T (T_Control)", "Delta Mode R-T"),
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("Delta Mode R vs. T (T_Sensing)", "Delta Mode R-T (T_Sensing)"),
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])
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self._create_suite_frame(left_col, 'Mid Resistance (10⁻³ Ω to 10⁹ Ω)', "Current Driven", "Instruments: Keithley 2400, Lakeshore 350", [
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self._create_suite_frame(left_col, 'Mid Resistance (<0.2 Ω to >200 MΩ)', "Current Driven", "Instruments: Keithley 2400, Lakeshore 350", [
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("I-V Sweep", "K2400 I-V"),
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("R vs. T (T_Control)", "K2400 R-T"),
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("R vs. T (T_Sensing)", "K2400 R-T (T_Sensing)"),
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])
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self._create_suite_frame(left_col, 'Mid Resistance, High Precision (10⁻⁶ Ω to 10⁹ Ω)', "Current Driven", "Instruments: Keithley 2400/2182, Lakeshore 350", [
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self._create_suite_frame(left_col, 'Mid Resistance, High Precision', "Current Driven", "Instruments: Keithley 2400/2182, Lakeshore 350", [
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("I-V Sweep", "K2400_2182 I-V"),
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("R vs. T (T_Control)", "K2400_2182 R-T"),
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("R vs. T (T_Sensing)", "K2400_2182 R-T (T_Sensing)"),
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])
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# --- Right Column Suites ---
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self._create_suite_frame(right_col, 'High Resistance (10³ Ω to 10¹⁶ Ω)', "Voltage Driven", "Instruments: Keithley 6517B, Lakeshore 350", [
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self._create_suite_frame(right_col, 'High Resistance (1 Ω to >10 PΩ)', "Voltage Driven", "Instruments: Keithley 6517B, Lakeshore 350", [
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("I-V Sweep", "K6517B I-V"),
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("R vs. T (T_Control)", "K6517B R-T"),
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("R vs. T (T_Sensing)", "K6517B R-T (T_Sensing)"),
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("Temperature Ramp", "Lakeshore Temp Control"),
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("Temperature Monitor", "Lakeshore Temp Monitor")
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])
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self._create_suite_frame(right_col, 'Capacitance (Keysight E4980A)', "Voltage Driven", None, [("C-V Measurement", "LCR C-V Measurement")])
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self._create_suite_frame(right_col, 'Capacitance & Impedance (20 Hz - 2 MHz)', "Voltage Driven", "Instrument: Keysight E4980A", [("C-V Measurement", "LCR C-V Measurement")])
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return main_container
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‎README.md‎

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| Parameter | Lower Limit | Higher Limit | Best Resolution |
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| :------------------------ | :------------------------------------------------ | :-------------- | :------------------------------------------ |
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| **Resistance** | **~10 nΩ** (Practical limit set by system noise) | **1 GΩ** | **1 nV** (Voltage Resolution on 2182A) |
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| **Resistance** | **~10 nΩ** (Practical limit set by system noise) | **200 MΩ** | **Derived** (from V/I in Delta Mode) |
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| **Current Source (6221)** | **100 fA** | **105 mA** | **100 fA** (on the 2 nA range) |
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| **Voltage Measure (2182A)** | **1 nV** | **100 V** | **1 nV** (on the 10 mV range) |
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---
@@ -197,7 +197,7 @@ Here is a meticulously verified summary of the key measurement specifications fo
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| **Resistance** | **1 Ω** | **&gt; 10 PΩ** ($10^{16}$ Ω) | **Derived** (from I-measure) |
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| **Current (Pyroelectric)** | **10 aA** ($10 \times 10^{-18}$ A) | **20 mA** | **10 aA** |
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| **Voltage** | **1 µV** | **200 V** | **1 µV** |
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| **Charge** | **10 fC** | **2 µC** | **10 fC** |
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| **Charge** | **1 fC** | **2 µC** | **10 fC** |
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---
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#### Keysight E4980A Precision LCR Meter (C-V Measurements)

‎_assets/PICA_Docs/Ranges_for_Measurements.md‎

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@@ -9,7 +9,7 @@ Here is a meticulously verified summary of the key measurement specifications fo
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| Parameter | Lower Limit | Higher Limit | Best Resolution |
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| :------------------------ | :------------------------------------------------ | :-------------- | :------------------------------------------ |
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| **Resistance** | **~10 nΩ** (Practical limit set by system noise) | **1 GΩ** | **1 nV** (Voltage Resolution on 2182A) |
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| **Resistance** | **~10 nΩ** (Practical limit set by system noise) | **200 MΩ** | **Derived** (from V/I in Delta Mode) |
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| **Current Source (6221)** | **100 fA** | **105 mA** | **100 fA** (on the 2 nA range) |
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| **Voltage Measure (2182A)** | **1 nV** | **100 V** | **1 nV** (on the 10 mV range) |
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@@ -34,7 +34,7 @@ Here is a meticulously verified summary of the key measurement specifications fo
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| **Resistance** | **1 Ω** | **&gt; 10 PΩ** ($10^{16}$ Ω) | **Derived** (from I-measure) |
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| **Current (Pyroelectric)** | **10 aA** ($10 \times 10^{-18}$ A) | **20 mA** | **10 aA** |
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| **Voltage** | **1 µV** | **200 V** | **1 µV** |
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| **Charge** | **10 fC** | **2 µC** | **10 fC** |
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| **Charge** | **1 fC** | **2 µC** | **10 fC** |
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---
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