IEPE Interface Module – 4mA Constant Current Source Adapter, 5V
IEPE Interface Module – 4mA Constant Current Source Adapter, 5V
IEPE Interface Conversion Module – 4mA Constant Current Source Adapter for Vibration & Acceleration Sensors
This compact and easy-to-use IEPE Interface Conversion Module is designed for engineers, researchers, and electronics enthusiasts who need a reliable constant current source adapter to interface IEPE-compatible vibration and acceleration sensors with standard data acquisition systems. Powered via 5V DC or a convenient Type-C connector, this module delivers stable, wide-bandwidth signal conditioning in a small form factor.
Key Features
- Simple IEPE Interface: Purpose-built constant current source adapter for vibration and acceleration sensors with minimal setup required.
- Wide Signal Bandwidth: Small signal –3dB bandwidth of 0.25Hz–1MHz; –0.5dB bandwidth of 0.4Hz–0.6MHz — ideal for both low-frequency structural monitoring and high-frequency vibration analysis.
- Flexible Power Input: Accepts 5V DC supply or USB Type-C power, with a maximum power current of 80mA.
- Stable Constant Current Source: Floating voltage of 23.5V with a default current output of 4mA — meets standard IEPE/ICP® sensor requirements.
- Broad Signal Range: Maximum signal input range of 10Vpp; maximum signal output range of 5Vpp.
- Optimized Impedance: Output impedance of 51Ω and minimum input impedance of 50KΩ for low-noise, accurate signal transfer.
- Compact & Versatile: Small board size makes it easy to integrate into test rigs, portable instruments, or DIY electronics projects.
Technical Specifications
| Parameter | Value |
|---|---|
| Power Supply | 5V DC or Type-C USB |
| Max Power Current | 80mA |
| Constant Current Source Floating Voltage | 23.5V |
| Default Constant Current | 4mA |
| Max Signal Input Range | 10Vpp |
| Max Signal Output Range | 5Vpp |
| –3dB Bandwidth | 0.25Hz – 1MHz |
| –0.5dB Bandwidth | 0.4Hz – 0.6MHz |
| Output Impedance | 51Ω |
| Minimum Input Impedance | 50KΩ |
| Country of Origin | Made in China |
What's in the Box
- 1× IEPE Interface Conversion Module
Important Notes
- Due to variations in lighting and display settings, the actual color of the module may differ slightly from product images.
- Please allow a 1mm–1cm tolerance due to manual measurement.
Learn More
For guidance on electronics safety standards and component specifications, visit the National Institute of Standards and Technology (NIST) – Electronics.
Frequently Asked Questions
Q: What types of sensors are compatible with this IEPE interface conversion module?
A: This module is designed to work with IEPE (Integrated Electronics Piezo-Electric) and ICP®-compatible vibration and acceleration sensors. These sensors are widely used in structural testing, machine condition monitoring, and vibration analysis applications.
Q: Can I power this module using a standard USB Type-C phone charger?
A: Yes. The module accepts 5V DC power via a USB Type-C connector, so any standard 5V USB charger or power bank providing at least 80mA can be used to power it.
Q: What is the significance of the 4mA constant current output?
A: The 4mA constant current is the standard excitation current specified for most IEPE/ICP® sensors. Providing a stable 4mA ensures the sensor's internal electronics are correctly biased, resulting in accurate and low-noise signal output from the sensor to your data acquisition system.
Q: Is this module suitable for high-frequency vibration measurements?
A: Yes. With a –3dB bandwidth extending up to 1MHz and a –0.5dB bandwidth up to 0.6MHz, this module is well-suited for both low-frequency and high-frequency vibration and acceleration measurements across a broad range of applications.