As a physical therapist, you work with patients who have lost the ability to perform daily physical activities. As part of your job, you may develop a collaborative working relationship with your patients' medical doctors.
The most commonly used type of resonator is the AT-cut, where the quartz blank is in the form of thin plate cut as an angle of about 3515' to the optic axis of the crystal. The third essential characteristic of the quartz resonator is related to the stability of its mechanical properties.
The two main types of resinoid-bonded abrasive cutting wheels are Type 1, which are flat, and Type 27, which have a raised hub. Type 1 wheels generally are used for straight-on cutting on electric or pneumatic right-angle grinders or die grinders and chop saws, among other tools.