The phrase "adjustable frequency" is correct and usable in written English.
It can be used in contexts related to technology, electronics, or sound, where the frequency can be modified or set to different levels.
Example: "The radio features an adjustable frequency tuner, allowing users to easily switch between stations."
Alternatives: "variable frequency" or "modifiable frequency".
However, we would like improve this by adding a User Interface that would allow adjustable frequency in the future.
Positive-plus-negative oscillators also appear to be more robust and easier to evolve, rationalizing why they are found in contexts where an adjustable frequency is unimportant.
The adjustable frequency range could be up to ±30% and this was significant from a comparison with the existing literature.
A new SA lever-type TMD with an adjustable frequency and the corresponding control strategy are primarily developed.
In this work, a novel design for small vibrotactors called the Dual Excenter is presented, which makes it possible to produce vibrations with independently adjustable frequency and amplitude.
The optical system adopted a solid-state laser with adjustable frequency of 1 2000 Hz and spots of 20 100 μm.
This double membrane based setup allows to examine the test liquid at adjustable frequencies in the low kilohertz range from 500 Hz to 20 kHz.
Several abbreviations that are used include ac for alternating current, AFD for adjustable-frequency drive (for electric motors), ASHRAE for American Society of Heating Refrigerating and Air Conditioning Engineers, and AWG for American wire gauge.
A variable-frequency drive (VFD) (also termed adjustable-frequency drive, variable-speed drive, AC drive, micro drive or inverter drive) is a type of adjustable-speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage.
The analysis shows that the device is capable for ultralow-frequency vibration energy harvesting since it has adjustable resonance frequency band.
Approximately 1.5 decades adjustable input frequency range for all the universal filter responses and high quality factor for band-pass response are obtained.
