Related Experiment Video
Updated: Jul 9, 2026
10:18
Multi-step Variable Height Photolithography for Valved Multilayer Microfluidic Devices
Published on: January 27, 2017
Micro-stereolithography as a transducer design method
K S Ho1, R J Bradley, D R Billson
1School of Engineering, University of Warwick, Coventry CV4 7AL, United Kingdom.
Ultrasonics
|November 30, 2007
Summary
Micro-stereolithography enables rapid prototyping of electromagnetic acoustic transducer (EMAT) coils. This technique facilitates the creation of meander-line and spiral EMATs for ultrasonic imaging of metallic objects.
Area of Science:
- Materials Science
- Mechanical Engineering
- Nondestructive Testing
Background:
- Rapid prototyping techniques offer advantages in fabricating complex geometries.
- Electromagnetic Acoustic Transducers (EMATs) are crucial for non-contact ultrasonic testing.
- Micro-stereolithography presents a potential method for EMAT coil fabrication.
Purpose of the Study:
- To explore the application of micro-stereolithography for manufacturing EMAT coils.
- To demonstrate the fabrication of both meander-line and spiral EMAT coil configurations.
- To evaluate the imaging capabilities of micro-stereolithography-produced EMATs.
Main Methods:
- Micro-stereolithography was employed for rapid prototyping of EMAT coils.
- Meander-line and spiral coil designs were manufactured using this technique.
- Synthetic Aperture Focussing Technique (SAFT) was applied to ultrasonic data.
Main Results:
- Successfully fabricated EMAT coils with distinct meander-line and spiral geometries.
- Ultrasonic signals from the fabricated EMATs were acquired.
- SAFT enabled the reconstruction of images of metallic objects using data from the EMATs.
Conclusions:
- Micro-stereolithography is a viable technique for producing EMAT coils.
- The fabricated EMATs, when used with SAFT, can achieve ultrasonic imaging.
- This fabrication method holds promise for advancing EMAT technology for NDT applications.
