Create A Low-cost- High-accuracy Lcr Meter With An Stm32 Mcu [top] Instant

Have you built an LCR meter before? What test frequencies worked best for you? Let me know in the comments!

The design typically uses a , combining a high-performance analog front end with the digital signal processing (DSP) capabilities of the STM32. Create A Low-Cost- High-Accuracy LCR Meter With An STM32 MCU

The CorrectionFactor accounts for the gain of your op-amps and the ADC reference voltage (usually 3.3V). Have you built an LCR meter before

The only thing stopping you from having a professional-grade LCR meter is a few lines of C code and the confidence to build it. Happy measuring. The design typically uses a , combining a

"High accuracy" implies minimizing errors. When you create a low-cost, high-accuracy LCR meter with an STM32 MCU, you must account for the following:

. This review focuses on the popular design architecture spearheaded by projects like Adil Malik's FFT LCR Meter

Once the buffer is full, we need to find the magnitude and phase of the signal at the excitation frequency. While you could use a Fast Fourier Transform (FFT), a more efficient method for single-frequency analysis is the Goertzel algorithm or a sliding DFT.