The STDES-FANPRE01 has a circular form factor (inner diameter 10 mm, outer diameter 32 mm), and is designed to enables the predictive maintenance features, and provide condition based monitoring data in typical fan and small motor applications.
It is driven by the STM32F412CE microcontroller, with an on-board ST715 LDO to power the digital ICs, IIS2DH accelerometer to acquire vibration data for frequency domain and time domain analyses, STTS751 temperature sensor to monitor bearing temperature trends during operation, and a driving circuit based on the STL6N3LLH6 Power MOSFET driven by PWM signals.
The board also offers an ST-LinkV3 programming connector with Virtual COM interface, and a connector with three different serial interfaces to allow connection with a host controller or other board.
The firmware contains algorithms to derive vibration power spectra and acceleration peak and RMS data, which can in turn be used to signal the status of equipment operating conditions (GOOD, WARNING, ALARM).
主要特性
- Compact solution for predictive maintenance and condition monitoring based on 3D accelerometer and contact temperature sensor
- Main components:
- 32-bit ARM® Cortex®-M4 microcontroller
- 3D MEMS accelerometer
- Contact temperature sensor
- LDO regulator output 3.3 V, 85 mA
- N-Channel 30 V Power MOSFET
- Embedded firmware developed for sensor data acquisition, predictive maintenance algorithm, and motor speed calculation
- SWD connector for debugging and programming
- Expansion connector for serial data transfer to host unit
- RoHS and WEEE compliant
| 器件 | 类型 | 描述 | 数据手册 |
|---|---|---|---|
| IIS2DH | 加速度计 | 3轴数字加速度计，超低功耗高性能MEMS运动传感器 | 点击下载 |
| STTS751 | 温度传感器 | 2.25 V低电压本地数字温度传感器 | 点击下载 |
| ST715 | 低压降(LDO)线性稳压器 | 高输入电压 - 85 mA LDO线性稳压器 | 点击下载 |
| STL6N3LLH6 | N-沟道 (12V 至 30V) | N沟道30 V、0.021 Ohm典型值、6 A STripFET H6功率MOSFET，PowerFLAT 2x2封装 | 点击下载 |
| STM32F412CE | STM32高性能MCU | 支持BAM的STM32动态效率MCU，带DSP和FPU的高性能ARM Cortex-M4 MCU，具有512 KB Flash、100 MHz CPU、ART加速器和DFSDM | 点击下载 |
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