The phrase "a proper frequency" is correct and usable in written English.
It can be used when discussing the appropriate or suitable rate at which something occurs or is measured, often in contexts like science, technology, or communication.
Example: "To ensure optimal performance, the device must operate at a proper frequency."
Alternatives: "an appropriate frequency" or "a suitable frequency".
We can obtain a satisfactory angular velocity by choosing a proper frequency for the motor.
It was found that use of oscillatory air supply with a proper frequency and valve on/off time ratio to replace steady air supply would increase not only the collection zone recovery but also the froth zone recovery.
However, very few attentions have been paid to the design of a proper frequency control strategy with DR for a multi-area power system.
Although the frequency management systems can adaptively select a proper frequency for the OTH radar, it can only partially eliminate the ionospheric effect, and thus it is not possible to totally avoid the smearing [3 5].
In a practical system, such a coarse synchronization can be achieved if the terminals use their frequency estimates obtained during the preceding downlink phase for a proper frequency precompensation of their transmit signals.
As with other antibiotics, TMP/SMX must be given in a sufficient dose at a proper frequency to produce adequate concentrations at the site of infection for successful eradication of the pathogen.
There's no question that a display that runs at the proper frequency to display a 3D image looks better, but it'll be a novelty feature until the price drops.
The process proceeds, the authors say, because an electrical property called polarization tends to organize the particles and reduce chaos, much like tuning a radio to the proper frequency can produce clear audio from the static.
Dudayev was so far from his Islamic roots that he once burbled that people should pray three times a day, unaware that the proper frequency, for Muslims, was five times.
A detailed calculation method is developed and example cases are presented to find the proper frequency setting of a VSD unit to be used.
To maintain proper frequency in an AC power system, generators need to be able to respond instantaneously to events that require more or less power (load changes).
