A qualifier is a word or phrase that changed how absolute, certain or generalized a statement is. Qualifiers include: Qualifiers of quantity: some, most, all, none, etc. Qualifiers of time: occasionally, sometimes, now and again, usually, always, never, etc.
Torsion -testing equipment. Torsion-testing equipment consists of. 1)A twisting head , with a chuck for gripping the specimen and. for applying the twisting moment to the specimen. 2)A weight head , which grips the other end of the specimen. and measures the twisting moment of torque. Specimen used.
1.1 The proton precession magnetometer. A proton precession magnetometer ( PPM ) is one of the most accurate devices that you can build for measuring magnetic fields. A PPM takes advantage of the fact that protons have an intrinsic magnetic field, much like an exceedingly small magnet. When the protons are placed in an external magnetic field, the direction of their field will precess (rotate) about the direction of the external field.