training for advanced research


Glossary terms about Wobbler

A control found on an electron microscope that sets up an automatic over focus-under focus loop. If the objective lens aperture is not correctly aligned with the electron beam the image will be seen to wobble back and forth under this regime.

4 pages mention Wobbler

Frequently asked questions
Step-by-step procedures for using TEMs  
The Eucentric Position
The "wobbler" button can be used as a focus aid where one brings the vibrating split image together into one static image. 
Using the JEM-1010 Transmission Electron Microscope for thin resin sections of biological material
With camera in, at around 50,000 to 80,000 mag undertake the following: Check to see that the objective lens current is correct (page 6 on microscope computer screen).