The phrase "as he experimented" is correct and usable in written English.
It can be used to describe actions or observations occurring simultaneously with someone's experimentation process.
Example: "As he experimented with different chemical mixtures, he noted the changes in color and texture."
Alternatives: "while he tested" or "during his experiments".
And, characteristically, he was the Impressionist whose style changed the most, as he experimented with new approaches and theories.
These photographs are the only remaining documentation of these scenes set up by Moore as he experimented with ideas for his Unesco sculpture.
Coach John van't Schip fielded a number of trialists in his line-up and made five half-time substitutes as he experimented with new players and systems.
The true gift of Franklin D. Roosevelt was his ability to grasp the fear of the American people and inspire them to endure as he experimented with different economic programs.
I was giddy with him as he experimented with going on social "dates" with his peers.
The final decade of Lichtenstein's life saw both thrill and peace in his art as he experimented with female nudes and Chinese-style landscapes.
Thinking that such might be the case for transplanted internal organs as well, he experimented with kidney transplants in dogs.
Work that spans 65 years of Mr. Migliori's career is exhibited here, allowing viewers to see how his work evolved as he he experimented with different methods.
Nowadays, Mr. Dylan writes simpler songs, and as he experiments (gospel, blues, stark folk, raging rock) he becomes more a part of the communal culture.
Tom himself draws the comparison with that most relatable of gangly adolescent superheroes, Peter Parker, as he experiments with and debates how best to use his powers.
The film plays slyly for a while with the family's different attitudes to Paul, and his awkwardness as he experiments with playing fatherly.
