Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
at constant intervals
Grammar usage guide and real-world examplesUSAGE SUMMARY
"at constant intervals" is grammatically correct and can be used in written English.
It is typically used to describe something that happens or is done regularly at specific time intervals. Example: "The data was collected at constant intervals of five minutes to ensure accurate measurements."
✓ Grammatically correct
Science
Transportation
Geology
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
12 human-written examples
The railway systems in various European countries adopt regular timetables, in which the trains arrive and depart at constant intervals.
We consider a first order continuous process that is sampled at constant intervals, a discrete controller and a control delay less than one sampling period.
Science
Also, the effect of inclusion of geogrid on the lime stabilized soil was studied by adding four layers of geogrid in the soil at constant intervals.
Science
Regular timetables, in which the trains arrive and depart at constant intervals, have been adopted in various European countries, because of the simpler and fairer service they allow.
Energy modifications are calculated at constant intervals as waves transform over the forereef platform along a series of reef profile transects running into the atoll centre.
Photographs were also taken at constant intervals of strain during the creep test, but this rate was changed to one image per second when the specimens first showed tertiary creep.
Human-verified similar examples from authoritative sources
Similar Expressions
48 human-written examples
CO2 was continuously supplied, while CH4 was introduced intermittently for 1 min at constant interval of 3 min.
Science
A computer-based procedure enabled us to arrange points on the sphere at approximately constant intervals.
The findings, reported in the 12 May issue of Science, indicate that tropical Pacific warmings have appeared at roughly constant intervals, but their strength has waxed and waned for thousands of years at a time.
Science & Research
The present model included four strategies, although other strategies could be relevant also such as screening at another constant interval than five years or screening at non-constant intervals.
Science
And yet I seem to lose my way at regular or even constant intervals.
News & Media
Expert writing Tips
Best practice
For clarity, always specify the duration of the "constant intervals". E.g., "Measurements were taken at constant intervals of 1 hour".
Common error
Avoid using "at regular intervals" interchangeably with "at constant intervals" if precision is needed. "Regular" can imply approximate timing, while "constant" emphasizes strict uniformity in the timing of occurrences.
Source & Trust
81%
Authority and reliability
4.4/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "at constant intervals" functions primarily as an adverbial phrase. It modifies verbs to specify the timing or frequency of an action, indicating that it occurs repeatedly with uniform spacing. Ludwig AI examples confirm this usage across various contexts.
Frequent in
Science
85%
Formal & Business
8%
News & Media
4%
Less common in
Wiki
2%
Encyclopedias
1%
Reference
0%
Ludwig's WRAP-UP
The phrase "at constant intervals" is a grammatically correct and frequently used adverbial phrase, as confirmed by Ludwig AI. It serves to precisely specify the timing of repeated actions or measurements, particularly in scientific and technical writing. While similar to "at regular intervals", "at constant intervals" emphasizes strict uniformity. Consider alternatives like "periodically" or "at fixed periods" depending on the desired level of precision. Remember to always specify the duration of the constant intervals to ensure clarity.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
at uniform time intervals
More formal and precise, stressing the evenness of the temporal gaps.
equally spaced in time
Specifies that the equal spacing is related to time.
regularly spaced
Emphasizes the equal distance or separation between items or events.
at fixed periods
Highlights the consistent timing of occurrences.
at consistent frequencies
Highlights the unwavering rate of occurrences.
periodically
A single word emphasizing recurrence at set times.
on a timed basis
Signifies that actions are scheduled and predictable over time.
at set increments
Focuses on the stepwise progression with consistent increases.
at predictable junctures
Emphasizes specific points in time that are known and consistent.
in a regular rhythm
Implies a pattern with predictable recurrences.
FAQs
How can I use "at constant intervals" in a sentence?
You can use "at constant intervals" to describe actions or measurements taken regularly over time. For example, "The temperature was recorded at constant intervals of 10 minutes."
What are some alternatives to saying "at constant intervals"?
Alternatives include "regularly spaced", "at fixed periods", or "periodically", depending on the specific nuance you want to convey.
Is it better to use "at regular intervals" or "at constant intervals"?
While similar, "at constant intervals" implies a higher degree of precision than "at regular intervals". Choose "at constant intervals" when the timing is strictly uniform.
What does "at constant intervals" mean?
It means something happens or is measured repeatedly, with the same amount of time passing between each occurrence.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
81%
Authority and reliability
4.4/5
Expert rating
Real-world application tested