The phrase "active instrument" is correct and usable in written English.
It can be used in contexts related to tools, devices, or methods that are currently in use or functioning effectively.
Example: "The active instrument in our research was the spectrometer, which allowed us to gather precise data."
Alternatives: "functional tool" or "operational device".
Set the transposition interval based on whether the active instrument for this period has a transposition object.
Terrestrial Laser Scanner (TLS) is an active instrument widely used for physical surface acquisition and data modeling.
Liulin-5 is an active instrument, capable to provide real-time radiation data for the particle flux and dose rates, energy deposition and LET spectra.
As in, the chainsaw is a quickly-moving, constantly active instrument.
We awake believing the world -- our world -- is stable, only to learn again and again that this Earth is as much a living, breathing, moving, active instrument of life as we are.
Restraint in demanding tax reductions reflects a relatively strong sense of the importance, competence and integrity of the Norwegian government as an active instrument of the national political community, also reflected in the Norwegian government's direct participation in oil and gas development - another story for another day.
The time for canal preparation including the total active instrumentation, instrument changes within the sequence, photography and irrigation was recorded.
This paper discusses the effects of introducing new distributed and active instruments on narrative activities in a school environment.
Another requirement is being competitive with conventional altimeter satellites (active instruments).
The drivers, as active instruments of that enterprise, provide an indispensable 'service' to Yellow; the enterprise could no more survive without them than it could without working cabs". Id.
The quantification of the energy budget of the Earth's climate system requires exquisite measurements and computations of the incoming and outgoing electromagnetic energy, while global characterization of climate system's components relies heavily on theoretical inversions of observational data obtained with various passive and active instruments.
