---
source_files:
  - Common/DTS.Common.DAS.Concepts/Test/Module/Channel/Sensor/SensorUnits.cs
  - Common/DTS.Common.DAS.Concepts/Test/Module/Channel/Sensor/ExcitationVoltage.cs
generated_at: "2026-04-17T15:40:36.715938+00:00"
model: "zai-org/GLM-5-FP8"
schema_version: 1
sha256: "383041d9dd8bd8c1"
---

# Documentation: Test.Module.Channel.Sensor (SensorUnits & ExcitationVoltage)

## 1. Purpose

This module defines sensor-related enumerations and conversion utilities within the `DTS.Common.DAS.Concepts` namespace. It provides the `SensUnits` enumeration for specifying sensitivity unit types (e.g., mV, mV/V, mV/V/EU) used in sensor configurations, and offers static helper methods for converting between `ExcitationVoltageOptions.ExcitationVoltageOption` enum values and their associated numeric voltage magnitudes. This is part of a larger partial class hierarchy modeling test module channel configurations.

---

## 2. Public Interface

### Enum: `Test.Module.Channel.Sensor.SensUnits`

Defined in `SensorUnits.cs`:

| Member | Value | Description Attribute | Purpose |
|--------|-------|----------------------|---------|
| `NONE` | 0 | "NONE" | No Sensitivity Units (Polynomial Sensor) |
| `mV` | 1 | "mV" | Sensitivity expressed in mV with output at Capacity EU |
| `mVperV` | 2 | "mV/V" | Excitation proportional sensitivity expressed in mV/V with output at Capacity EU |
| `mVperVperEU` | 3 | "mV/V/EU" | Excitation proportional sensitivity expressed in mV/V/EU |
| `mVperEU` | 4 | "mV/EU" | Sensitivity expressed in mV/EU |

---

### Static Methods (defined in `ExcitationVoltage.cs`)

#### `GetExcitationVoltageMagnitudeFromEnum`

```csharp
public static double GetExcitationVoltageMagnitudeFromEnum(
    ExcitationVoltageOptions.ExcitationVoltageOption target)
```

Converts an `ExcitationVoltageOptions.ExcitationVoltageOption` enum value to its associated numeric voltage magnitude (in volts). Uses `ExcitationVoltageOptions.VoltageMagnitudeAttributeCoder.DecodeAttributeValue()` internally.

**Returns:** The `double` magnitude associated with the specified voltage option.

**Throws:** `ArgumentException` with message "encountered problem attempting to get excitation voltage magnitude from enum" if decoding fails.

---

#### `GetExcitationVoltageEnumFromMagnitude`

```csharp
public static ExcitationVoltageOptions.ExcitationVoltageOption GetExcitationVoltageEnumFromMagnitude(
    double magnitude)
```

Converts a numeric voltage magnitude to the corresponding `ExcitationVoltageOptions.ExcitationVoltageOption