Atomfair PCI 571 Piezoelectric Ceramic Interferometry Measurement Instrument
Product Overview
Atomfair PCI 571 Piezoelectric Ceramic Interferometry Measurement Instrument adopts Michelson interferometry to accurately measure the piezoelectric constant of piezoelectric ceramics and the frequency response characteristics of their vibration. The instrument adopts a new platform-type structural design, making adjustment and measurement operations more convenient. It is a core optical instrument for observing various optical interference phenomena and verifying relevant basic theories in physics experiments of institutions of higher education, suitable for physics teaching and engineering optics experiment scenarios.
Instrument Features
- Light Source: He-Ne laser with wavelength 632.8nm, power ≥1.5mW, single-mode TEM€€, equipped with fully protected safety high-voltage plug, cavity length 250mm.
- Piezoelectric Ceramics: Tubular structure with electrodes plated on inner and outer walls respectively for easy voltage application.
- Structure: New platform-type Michelson interferometer design, easy to add measured substances in the optical path; open space makes it easier to adjust equal-thickness interference, equal-inclination interference and various fringe changes, supporting precise measurement.
- Base: Cast iron base is used as the experimental platform to ensure stable and reliable experimental process and reduce external interference.
Main Experimental Contents
- Observe non-localized interference of point light source (standard He-Ne laser)
- Observe equal-inclination interference fringes (Low-pressure sodium lamp required)
- Observe equal-thickness interference fringes (Low-pressure sodium lamp required)
- Observe white light interference phenomena (White light source required)
- Determine the wavelength of light source or optical filter (standard He-Ne laser or additional low-pressure sodium lamp)
- Determine the wavelength difference of sodium yellow double lines (Low-pressure sodium lamp required)
- Measure the refractive index of transparent medium thin film (transparent medium thin film required)
- Measure the piezoelectric constant of piezoelectric ceramics, observe and study the frequency response characteristics of their vibration
- Optional Experiment: Measure the refractive index of transparent gas (glass gas cell required)
- Optional Experiment: Observe Fabry-Perot interference phenomena (Fabry-Perot etalon required)
Main Configurations
Atomfair PCI 571 Piezoelectric Ceramic Interferometry Measurement Instrument (main unit, ground glass screen, beam expander, one-dimensional base)
- Piezoelectric ceramic drive power supply
- Piezoelectric ceramic displacement unit
- Piezoelectric ceramic receiving unit
- GY-11 He-Ne Laser (with power supply)
Optional Accessories: GY-5 Low-Pressure Sodium Lamp, GY-14 White Light Source, Fabry-Perot Etalon, Gas Cell Module, etc.
Customization Service
Exclusive configuration parameters can be customized according to different experimental teaching or scientific research needs of customers.
If you’re interested, have any questions, or have specific customization requirements, please feel free to contact us at inquiry@atomfair.com.
The instrument contains a He-Ne laser and a high-voltage piezoelectric drive, requiring adherence to laser safety and electrical safety protocols. The open optical path and precision components necessitate a stable, vibration-free environment and clean optical surfaces to maintain measurement accuracy.
- Laser Safety: Avoid direct eye exposure to the 632.8 nm He-Ne laser beam.
- Electrical Safety: Ensure the fully protected safety high-voltage plug is engaged before operating the piezoelectric drive.
- Mechanical Stability: Place the instrument on a rigid, level surface to prevent drift of interference fringes.
- Optical Cleanliness: Keep the beam expander, ground glass screen, and mirror surfaces free from dust and smudges.
Set up the Michelson interferometer with the He-Ne laser and beam expander. Apply a controlled voltage to the piezoelectric ceramic and record the resulting interference fringe displacement to calculate the piezoelectric constant.
Required Equipment: He-Ne Laser (GY-11), Piezoelectric Ceramic Drive Power Supply, Ground Glass Screen, Beam Expander
- Connect Safety Plug
Verify the fully protected safety high-voltage plug is connected before powering the piezoelectric drive. - Align Laser
Power on the He-Ne laser and adjust the beam expander to obtain a collimated beam directed at the interferometer mirrors. - Observe Fringes
Apply a voltage ramp to the piezoelectric ceramic and record the interference fringe displacement on the ground glass screen.
How does the Atomfair PCI 571 achieve precise measurement of the piezoelectric constant using Michelson interferometry?
The PCI 571 achieves precise piezoelectric constant measurement by employing a Michelson interferometer with a He-Ne laser source (632.8 nm wavelength, ≥1.5 mW power, single-mode TEM00) and a cavity length of 250 mm. The instrument's new platform-type structural design and cast iron base provide stability, reducing external interference and supporting accurate measurement of fringe shifts caused by piezoelectric ceramic displacement.
Which external light sources are required to perform the full set of interference experiments available on the PCI 571?
The PCI 571 requires a low-pressure sodium lamp for observing equal-inclination and equal-thickness interference fringes and for determining the wavelength difference of sodium yellow double lines. A white light source is needed for white light interference experiments. These sources are not included as standard but are available as optional accessories (GY-5 Low-Pressure Sodium Lamp and GY-14 White Light Source).
What safety features are integrated into the PCI 571's He-Ne laser to protect users during operation?
The PCI 571's He-Ne laser is equipped with a fully protected safety high-voltage plug to prevent electrical hazards during connection and use. Additionally, the instrument's new platform-type design with an open optical path allows safe adjustment of equal-thickness and equal-inclination interference setups without direct exposure hazards, though standard laser safety practices should always be followed.
The Atomfair PCI 571 is a Michelson interferometry platform engineered for quantitative piezoelectric characterization, combining a 632.8 nm He-Ne laser source with a tubular piezoelectric ceramic element to enable direct measurement of the piezoelectric constant and vibration frequency response. Its cast iron base and open optical path design support stable, precise fringe analysis for both teaching and research applications.
Positive
- Integrated Michelson interferometry for piezoelectric measurement: The instrument uses a Michelson interferometer with a 632.8 nm He-Ne laser to measure the piezoelectric constant and vibration frequency response of piezoelectric ceramics, providing direct optical measurement without contact electrodes.
- Stable cast iron base for reduced external interference: The cast iron base provides a stable experimental platform, minimizing mechanical vibrations and external disturbances, which is critical for precise interferometric measurements.
Trade-offs
- Requires additional light sources for certain experiments: Observing equal-inclination, equal-thickness, and white light interference fringes requires additional low-pressure sodium or white light sources, which are not included in the standard configuration.
- Optional accessories needed for gas and Fabry-Perot experiments: Measuring refractive index of transparent gas or observing Fabry-Perot interference requires optional glass gas cell and Fabry-Perot etalon accessories, which are not part of the main unit.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).
