The phrase "a class of instruments" is correct and usable in written English.
It can be used when referring to a specific category or group of tools or devices that share common characteristics or functions.
Example: "In the study of music, a class of instruments known as woodwinds includes the flute, clarinet, and saxophone."
Alternatives: "a category of instruments" or "a group of instruments".
Gas-source isotope ratio mass spectrometers are a special breed of a class of instruments--mass spectrometers--that are used in many different areas of science, from physics to biomedical science, for the separation of atoms and molecules of different charges and molecular weights.
Chordophone, any of a class of musical instruments in which a stretched, vibrating string produces the initial sound.
Aerophone, any of a class of musical instruments in which a vibrating mass of air produces the initial sound.
Membranophone, any of a class of musical instruments in which a stretched membrane vibrates to produce sound.
Siderostat, any of a class of astronomical instruments consisting of a flat mirror that is turned slowly by a motor to reflect a given region of the sky continuously into a fixed telescope.
This thesis proposes a consideration of finger augmenting devices as a new class of instruments, rather than an opportunistic approach for positioning sensors and actuators.
A new class of instruments offers an unprecedented combination of label-free detection with exquisite sensitivity to live-cell responses.
A new class of instruments – based on Silicon PhotoMultiplier (SiPM) photosensors – are currently under development for the next generation of Astroparticle Physics experiments in future space missions.
Using Monte Carlo simulations we show that the exceptional source qualities translate directly into strongly enhanced instrument performance for a large class of instruments ranging from high-resolution backscattering to low-resolution small-angle scattering.
The IRMA Blood Analysis System is one of a new class of instruments which are used for what is termed 'point-of-care testing' (POCT) [ 2], indicating that it can be used wherever the patient may be to measure blood gases and pH, as well as the electrolytes sodium (Na), K and Ca2+.
