MXY8000-8 PSD Position Sensor Experimental Instrument

1、 Instrument Introduction

Position sensitive detector PSD belongs to semiconductor devices, which have advantages such as high position resolution, simple and fast current response, and dependence on the position of the light spot compared to discrete element detectors. In addition, the PSD position signal data is independent of the shape of the photodetector. PSD is widely used in optical position and angle measurement and control, remote optical control systems, position and vibration monitoring, laser beam correction, automatic range detection systems, and human motion and analysis systems due to its many advantages. For this technology, our company has independently developed the MXY8000-8 PSD position sensor experimental instrument, which has powerful functions and stable performance. Through self-designed, built, installed, and debugged circuits, the current output by the PSD sensor is collected and calculated. The coordinates of the light points are displayed on the color LCD screen and the displacement is calculated. This enables students to have a deep understanding and mastery of PSD photoelectric sensors from both the principle and application aspects, and independently complete the design work of related projects using it.

2、 Product configuration

1. One one-dimensional PSD position sensor

2. Stm32 microcontroller and its components 1 set

3. One 3.5-inch color LCD screen

4. One 650nm point laser emitter

5. One set of circuit components can be built for laser brightness adjustment

6. One set of vibration experimental apparatus

3、 Experimental purpose

1. Understand the working principle of one-dimensional PSD

2. Understand PSD data acquisition circuit

3. Learn to use Stm32 for programming, downloading, and debugging

4. Understand color LCD screens and learn some simple GUI (graphical user interface)

4、 Experimental content

（1） Principle experiment:

1. Experimental study on PWM pulse wave regulation of laser emitter voltage

2. Stm32 program writing, downloading, and debugging experiments

3. One dimensional PSD output voltage measurement experiment

4. UC/GUI LCD Display Experiment

（2） Application experiments:

1. Cursor position detection and display experiment

2. Vibration Position Information Detection and Display Experiment