amplitude modulation

Optical Fiber Sensors: A Comprehensive Analysis from Technical Principles to Industrial Applications

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Optical Fiber Sensors: A Comprehensive Analysis from Technical Principles to Industrial Applications

Click the blue text Follow us This public account is a non-profit MEMS technology dynamic and industry reporting platform under the Guangdong Microtechnology Industrial Research Institute. We publish in-depth reports on MEMS, track industry dynamics, and provide technical popularization every week. This article is a technical popularization, being the 157th article of the public account. … Read more

Understanding Optical Fiber Sensors: Principles and Requirements

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Understanding Optical Fiber Sensors: Principles and Requirements

1. Basic Working Principle of Optical Fiber Sensors The national standard GB 7665-1987 defines a sensor (Transducer/Sensor) as a device or apparatus that can sense a specified measurement and convert it into a usable output signal according to certain rules. The basic working principle of an Optical Fiber Sensor (OFS) is illustrated in the figure … Read more

One Device for Frequency Modulation and Amplitude Modulation: FPGA DDS Waveform Generator

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One Device for Frequency Modulation and Amplitude Modulation: FPGA DDS Waveform Generator

With a single FPGA, you can control arbitrary waveform generation, including frequency modulation and amplitude modulation! This project utilizes the DDS module and high-speed DAC in the “Little Foot” FPGA development board to achieve high-quality output of various waveforms such as sine, square, and triangle waves. The control method is very intuitive: switch waveform modes … Read more