Precision crystal FAQs
To get answers to the most frequently asked questions about our precision crystals, please select one of the links below:
Precision crystals are tight tolerance crystals having a calibration tolerance of less than ±10 PPM and or a temperature tolerance of less than ±10PPM or any other special processing requirements such as ovenized crystals, low phase noise crystals, Quartz Microbalance crystals, BT-cut crystals, SC-cut crystals, IT-cut crystals, and FC-cut crystals.
Precision crystals are primarily used in research applications as a reference point to measure minute changes in frequency responses.
Low phase noise crystals are crystals designed to have a pure spectral signal.
Low phase noise crystals are often used in critical applications such as communications and radar.
Ovenized crystals are any crystals made to operate at a temperature above the anticipated ambient temperature (typically +50°C to +110°C) in order to eliminate changes in frequency due to the change in temperature.
Ovenized crystals are used for clocks in Navigation Systems, Frequency Standards, MTI Radar, Wireless Base Stations, Telecom Timing modules, and Precision Test Equipment.
Quartz Microbalance Crystals are also referred to as QCM, which is a piezoelectric quartz crystal that utilizes the Converse Piezoelectric Effect to determine mass changes as a result of frequency change of the crystal. Material is coated onto the crystal that attracts a certain other material. When this other material becomes attached, it lowers the crystal frequency, the amount being directly related to its mass. The mass change can be in the nanogram range.
QCM crystals are used as sensors to determine mass changes as a result of frequency changes.
The most common QCM crystal applications include chemical reaction monitors, biomedical sensors, metal deposition monitors, and environmental monitoring applications.
Military crystals are quartz crystals that are designed to meet military specifications (mil-spec) and produced to Mil-Spec requirements (QPL)
Military crystals are used in such applications as guidance systems, two-way radio communications and global positioning location systems.
Special cut crystals are those crystals that have been cut at a different angle of orientation to enhance performance for specific needs. Typical special cuts would include BT-cut crystals, SC-cut crystals, IT-cut crystals, and FC-cut crystals.
Special cut crystals are typically used for highly specialized applications dependant on customer requirements.
If you have more questions about our precision crystals and precision crystal products, call us today at 1-800-725-1426, fill out our contact form, email us at firstname.lastname@example.org or request an online quote for International Crystal Manufacturing radio frequency control devices – quartz crystals, oscillators, QCM crystals, filters, TCXOs / VCTCXOs, and precision crystals.
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