The following assumptions were adopted in order to simplify the analysis: the rigidities of the quartz crystal
chip groups, as well as the same sensitivity and symmetrical uniform layout, are identical.
[1.] Marrison, W.A., "The Evolution of the Quartz Crystal
Clock," Bell System Technical Journal, 27:510-588, 1948, doi: 10.1002/j.15387305.1948.tb01343.x.
Complete quartz crystals
(1, 2), a quartz sphere cut from a crystal (3) and thin quartz plates cut parallel to the crystal faces of prisms and rhombs (4) were used for the hydrothermal experiments (Fig.
Choi, Measurement of nanoparticle concentration using quartz crystal
microgravimetry, Journal of Physical Chemistry B 114 (49), 16112-16117 (2010).
(2007) Photo-derivatized polymer thin films at quartz crystal
microbalance surfaces: sensors for carbohydrate-protein interactions.
The three cristalliers in question, Christophe Lelievre, Michael Bibollet-Ruches and Frederic Eva, opened the cleft on Aiguille Verte in August 2007; from it came clusters, to almost 10 cm, of gemmy, glowing rose-pink fluorite octahedrons to 6 cm on edge individually, as well as beautiful smoky quartz crystal
clusters to large-cabinet size, and interesting specimens showing transparent, colorless, lustrous "paper spar" calcite with free-standing crystals to 6.5 cm (Lelievre, 2008).
"It has a quartz crystal
that resonates at about 5 MHz," he said.
When a quartz crystal
blank is ground to the proper thickness, the grinding process creates micro-cracks and pits in the surface of the crystal.
Kyoto, Japan, Oct 10, 2005 - (JCN Newswire) - Kyocera Corporation is pleased to announce that Kyocera Kinseki, a full subsidiary engaged in the development and production of electronic devices, will ship the CX3225SB miniature low-frequency quartz crystal
unit, the world's first miniature, and smallest(*1), crystal unit which oscillates in the 4MHz frequency range.
DuPont Zodiaq[R] is a material that captures the radiance of quartz crystal
with depth, clarity, and strength while embracing nature and technology.
Today, acoustic sensors are generally based on quartz crystal
resonators that are found in electronic devices such as watches, computers, and televisions, with more than 1 billion units mass-produced each year.
The NX2520DA series is an ultra-micro miniature quartz crystal
that exhibits the optimum electrical performance required for miniature wireless applications.