WMG-2 Piezoelectric Ceramic Interference Measurement Experimental Instrument Introduction: WMG-2 piezoelectric ceramic interferometer is designed based on Michelson interferometer. Using laser interferometry, the piezoelectric constant of piezoelectric ceramics and the frequency response characteristics of vibration are observed and studied. Master the frequency response characteristics of piezoelectric ceramics and the measurement methods of micro-displacement. Experiment content: 1. Piezoelectric constant measurement of piezoelectric ceramics 2. Observe and study the frequency response characteristics of piezoelectric ceramic vibration (an oscilloscope is required) 3. Observe the non-local interference of the point light source 4. Observe equal tilt interference fringes (sodium light lamp is required) 5. Observe interference fringes of equal thickness (sodium light is required) 6. Observe the phenomenon of white light interference (a white light source is required) 7. Determine the wavelength of the light source or filter (for example: He-Ne laser, sodium lamp) 8. Measure the wavelength difference of sodium-yellow double line (need to be equipped with a sodium light) 9. Measure the refractive index of transparent medium flakes (users are required) 10. Measure the refractive index of transparent gas (optional, additional glass gas chamber is required) Observe the interference phenomenon of Fabry-Perot (optional, need to be equipped with Fabry-Perot etalon) Features: 1. The cast iron base is used as the experimental platform to ensure the stability of the experimental process; 2. Special narrowband filter frequency selection, can complete the experiment under bright daylight conditions, without interference; 3. The piezoelectric ceramic drive power supply can provide triangle wave voltage or adjustable DC voltage of different frequency and amplitude respectively 4. Use He-Ne laser (632.8nm, >1.5mW) as the light source. Technical Parameters: light source: He-Ne laser, wavelength 632.8nm, >1.5mw Tester host: Moving precision of moving mirror (fine adjustment): 0.0004mm Moving accuracy of moving mirror (coarse adjustment): 0.01mm Moving distance of moving mirror (fine adjustment): 1mm Moving distance of moving mirror (coarse adjustment): 12mm
Introduction: WMG-2 piezoelectric ceramic interferometer is designed based on Michelson interferometer. Using laser interferometry, the piezoelectric constant of piezoelectric ceramics and the frequency response characteristics of vibration are observed and studied. Master the frequency response characteristics of piezoelectric ceramics and the measurement methods of micro-displacement.
