NI SCXI-1104C电压输入模块是NI（美国国家仪器）公司SCXI系列中的一个重要组件，专为高电压信号的信号调理而设计。以下是对该模块的详细介绍：

一、基本信息

• 品牌：NI（美国国家仪器）
• 型号：SCXI-1104C
• 系列：SCXI系列

二、技术特点

1. 高精度和稳定性：采用精密的电压输入技术，确保准确的测量结果，满足各种不同电压信号的测量需求。
2. 多量程测量：支持多种测量范围，用户可以根据实际电压信号的大小选择合适的量程，提高测量的准确性和稳定性。
3. 多种信号类型支持：支持多种常见的信号类型和电压标准，如±10V、±5V、±2.5V等，方便用户根据实际需求选择合适的信号类型和标准。
4. 易于校准和维护：该模块应每年至少重新校准一次，或在指定温度范围之外运行时重新校准。校准过程简单易行，用户可以按照校准指南进行操作，确保测量的准确性。同时，该模块也易于维护和保养，降低维护成本。
5. 多通道与灵活性：具有多个差分通道（部分资料提及32个差分通道，但请注意不同来源的信息可能有所不同），支持多个通道同时采集，可连接多个传感器或信号源进行数据采集，以满足多种应用场景的需求。
6. 可编程性：可以使用编程语言（如LabVIEW）来配置和控制模块，满足特定应用的需求。

三、主要技术参数

• 通道数：通常为16个差分输入通道（也有资料提及32个差分通道，具体以产品规格书为准）。
• 分辨率：24位模数转换器，提供高精度的数据采集。
• 采样率：最大采样速率为100 kS/s，但具体速率可能根据应用需求有所不同。
• 输入电压范围：±10 V，适用于多种常见的信号类型和电压标准。
• 输入阻抗：1 MΩ || 5 pF，确保稳定的信号传输。
• 连接方式：采用SCXI端子板，方便连接各种传感器和信号源。
• 尺寸与重量：3.3 x 22.9 x 14.0 cm，0.36 kg，适合各种环境使用。

四、应用场景

NI SCXI-1104C电压输入模块适用于各种需要进行高电压信号测量的应用场景，如电力系统的监测、电机控制、实验室测量等。它能够提供准确的测量结果，帮助用户更好地了解系统运行状态，提高生产效率和设备可靠性。

The NI SCXI-1104C voltage input module is an important component in the NI (National Instruments) SCXI series, designed for signal conditioning of high voltage signals. The following is a detailed introduction to the module:

1. Basic information

Brand: NI (National Instruments)

Model: SCXI-1104C

Series: SCXI series

Second, technical characteristics

High precision and stability: The use of precision voltage input technology to ensure accurate measurement results to meet the measurement needs of various voltage signals.

Multi-range measurement: Support a variety of measurement ranges, users can choose the right range according to the size of the actual voltage signal, improve the accuracy and stability of the measurement.

Multiple signal types support: Support a variety of common signal types and voltage standards, such as ±10V, ±5V, ±2.5V, etc., convenient for users to choose the appropriate signal types and standards according to actual needs.

Easy calibration and maintenance: The module should be recalibrated at least once a year, or when operating outside a specified temperature range. The calibration process is simple and users can follow the calibration guide to ensure the accuracy of the measurement. At the same time, the module is also easy to maintain and maintain, reducing maintenance costs.

Multi-channel and flexibility: with multiple differential channels (some materials mention 32 differential channels, but please note that different sources of information may be different), support multiple channels at the same time, can connect multiple sensors or signal sources for data acquisition, to meet the needs of a variety of application scenarios.

Programmability: Modules can be configured and controlled using programming languages such as LabVIEW to meet the needs of specific applications.

3. Main technical parameters

Number of channels: Usually 16 differential input channels (there are also references to 32 differential channels, the specific product specifications prevail).

Resolution: 24-bit analog-to-digital converter provides high precision data acquisition.

Sampling rate: The maximum sampling rate is 100 kS/s, but the specific rate may vary according to application requirements.

Input voltage range: ±10 V, suitable for a variety of common signal types and voltage standards.

Input impedance: 1 MΩ || 5 pF to ensure stable signal transmission.

Connection mode: SCXI terminal board is used to connect various sensors and signal sources.

Size and weight: 3.3 x 22.9 x 14.0 cm, 0.36 kg, suitable for various environments.

Iv. Application scenarios

The NI SCXI-1104C voltage input module is suitable for a variety of applications requiring high voltage signal measurement, such as power system monitoring, motor control, laboratory measurement, etc. It can provide accurate measurement results to help users better understand the operating status of the system, improve production efficiency and equipment reliability.