is kept constant

USAGE SUMMARY

The phrase "is kept constant" is correct and usable in written English.
It is usually used to mean that something is maintained or held at a fixed level, such as temperature or pressure. For example, you might say "The temperature of the reaction is kept constant throughout the experiment."

✓ Grammatically correct

Science

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

The fill factor (width/period=1/2) is kept constant throughout.

Nature

Aluminium section width to thickness ratio is kept constant at 20.83.

Materials Today: Proceedings

The optimal gap size depends on whether the flow velocity or flow rate is kept constant.

Energy Conversion and Management

The width of all bridge decks is kept constant at 10.30 m, with New Jersey parapet.

Structural Engineering, Mechanics and Computation Proceedings of the International Conference on Structural Engineering, Mechanics and Computation 2–4 April 2001, Cape Town, South Africa

As a result of this, the rotor spin is kept constant.

Journal of Sound and Vibration

In these three-axis control motions, the sensitive direction of the ball bar is kept constant.

International Journal of Machine Tools and Manufacture

For simplicity, one loading component is kept constant while the other is cyclic.

International Journal of Fatigue

The weight of the beam is kept constant for various step-ratios.

Journal of Sound and Vibration

IThes showeightt the maximum displacements and maximum dynamic stresses decrease fof a certhen type of thickneshellristion.

Journal of Sound and Vibration

For all flame conditions, the total carbon flow rate of the fuel mixture is kept constant.

Combustion and Flame

The film thickness is kept constant while the PMMA molar mass and blend composition are varied.

Polymer

Expert writing Tips

Best practice

When describing experimental conditions, explicitly state which parameters "is kept constant" to ensure reproducibility and clarity. For example, "The ambient temperature is kept constant at 25°C."

Common error

Avoid ambiguity by clearly specifying the parameter that "is kept constant". Instead of saying "The level is kept constant", clarify what level you are referring to, such as "The water level is kept constant."

Linguistic Context

The phrase "is kept constant" functions as a passive verb phrase, indicating that a subject (variable, condition, etc.) is maintained at a fixed level or value. Ludwig provides numerous examples from scientific literature, demonstrating its use in describing experimental parameters and conditions.

Expression frequency: Very common

Frequent in

Science

100%

Less common in

News & Media

0%

Formal & Business

0%

Wiki

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Ludwig's WRAP-UP

The phrase "is kept constant" is a common and correct expression, particularly within scientific and technical contexts. As Ludwig AI confirms, it indicates that a specific variable or condition is maintained at a fixed level throughout a process or experiment. This ensures clarity and accuracy in reporting results. Its frequent use in scientific literature, as evidenced by the provided examples, reinforces its role in objective description. When using this phrase, ensure that the specific parameter being held constant is clearly identified to avoid any ambiguity.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

stays constant

A more colloquial way of expressing the same concept.

is maintained

Emphasizes the active effort to preserve a particular state or level.

remains unchanged

Focuses on the lack of alteration rather than active maintenance.

is held steady

Suggests stability and a lack of significant fluctuation.

is fixed

Implies a definite and unchangeable value or state.

is stabilized

Highlights the process of making something constant after potential instability.

remains invariable

Emphasizes the complete lack of change over time or across conditions.

is uniformly maintained

Adds the idea of consistency in the manner of maintaining the constant state.

is consistently held

Similar to "is uniformly maintained", but with a focus on maintaining over time.

is preserved

Focuses on keeping something in its current state against potential degradation or change.

FAQs

How do I use "is kept constant" in a sentence?

Use "is kept constant" to indicate that a particular variable or condition remains unchanged throughout a process or experiment. For example, "The voltage "is kept constant" during the measurement."

What are some alternatives to saying "is kept constant"?

You can use phrases like "remains unchanged", "is maintained", or "stays constant" as alternatives to "is kept constant", depending on the specific context.

What does it mean when a variable "is kept constant" in an experiment?

When a variable "is kept constant", it means its value does not change during the experiment. This helps to isolate the effects of other variables that are being tested.

Is it better to say "is kept constant" or "remains constant"?

Both "is kept constant" and "remains constant" are grammatically correct. "Is kept constant" implies an active effort to maintain the value, while "remains constant" simply states that the value does not change.