The phrase "a certain interval of" is correct and usable in written English.
It can be used when referring to a specific but unspecified duration or range of time or space.
Example: "The experiment was conducted over a certain interval of time to observe the changes in temperature."
Alternatives: "a specific period of" or "a defined range of".
Think for instance about how many earthquakes happen on a given fault segment during a certain interval of time.
The target point is difficult to determine explicitly; however, it is assumed to be in a certain interval of the planned trajectory.
In the first case they exist for a unique value of the parameter (current) while for the second case, stable structures are observed for a certain interval of values of the parameter (voltage).
The time complexity of the classification system increases gradually and the system becomes inefficient while it is learned repeatedly for adding new group of data with the existing one in a certain interval of time.
The authors found an unexpected new type of failure (corner break off) that takes place for a certain interval of reinforcement ratio and that does not allow the beams to reach the maximum strength and ductility that would be expected if this type of failure did not exist.
The intermediate nodes also create and preserve a reverse route to the source node for a certain interval of time.
There are 40 stress gages to be averagely disposed into the two piles with a certain interval to collect the data of NSF during this field test.
The data dissemination strategy will be more energy efficient if the roadside infrastructure broadcasts the beacon packets with a certain interval instead of broadcasting them in each period.
And, the frequency information is not necessarily a specific value, but generally a certain interval or a set of regular values.
There is a certain interval t between different layers of graphene or the bottom graphene from the dielectric.
Moreover, different videos which have a certain interval length (see Section Setting of the questions) in common have been compensated in terms of complexity among themselves wherever possible.
