There's already a pull request for timestamp instrument #79 to add time to a measurement but it would also be useful to be able to use time in a Loop to trigger a measurement so that a parameter could be measured periodically. It seems to me this isn't covered at the moment given that measurement takes some time so using qc.Wait(5) doesn't actually guarantee a measurement every 5 seconds for example. I'm opening this as a discussion as to how this might be implemented and also if anyone else had thoughts/requirements for this.