The phrase "at a controlled speed" is correct and usable in written English.
It can be used in contexts where you want to specify that something is being done at a speed that is regulated or managed, often for safety or efficiency reasons.
Example: "The vehicle was driven at a controlled speed to ensure the safety of all passengers."
Alternatives: "at a regulated pace" or "at a managed speed."
The apparatus moves a set of contact points tangentially over the skin at a controlled speed, with controlled normal force.
As they pull the glass out slowly at a controlled speed, the viruses spontaneously configure themselves on the glass surface into orderly patterns.
Intervention: The experimental group (n = 32) underwent a physical training program that included warm-up, stretching, peripheral muscle strength training and walking at a controlled speed for 15 minutes.
The ultrasharp wedge is held fixed while the work material is fed slowly downwards at a controlled speed (0.6 mm/s) towards the wedge.
Usually the boats cross the finish line, do a slow turn in the basin and then conduct their "fly by" of the Park at a controlled speed.
The substrates were translated at a controlled speed of 0.5 mm s−1 during solution injection to form aligned crystalline films.
Model testing consists of towing a precisely made model of the hull at a precisely controlled speed, in calm water, while measuring the force required to tow it.
Participants will be instructed to perform the concentric phase of the exercise as rapidly as possible but the eccentric (lowering) phase at a normal, controlled speed.
A typical run comprised of changing the angular velocity from 0.5 to 100 rpm at a controlled ramp speed.
Tetraethoxysilane (TEOS) was used as alkoxide precursor, and the coatings, monolayer and 3-layers, were deposited by dip-coating technique at a controlled extraction speed of 35 cm/min.
Additions are usually made at the stirring station by a wire feeder, which runs a heavy wire at controlled speed through a refractory-covered lance and into the steel.
