measure
Query built-in oscilloscope measurements on specific channels to obtain voltage, frequency, timing, and waveform parameter readings for signal analysis.
Instructions
Query a single-source built-in measurement on a channel. Stop acquisition first for stable readings. channel: CHAN1–CHAN4. item: VMAX, VMIN, VPP, VTOP, VBASE, VAMP, VAVG, VRMS, FREQUENCY, PERIOD, PWIDTH, NWIDTH, PDUTY, NDUTY, RTIME, FTIME, OVERSHOOT, PRESHOOT, PSLEWRATE, NSLEWRATE, TVMAX, TVMIN, VUPPER, VMID, VLOWER, VARIANCE, PVRMS, PPULSES, NPULSES, PEDGES, NEDGES. A return value of 9.9E37 is the scope's invalid/overflow sentinel — it means the measurement could not be computed (e.g. FREQUENCY returns 9.9E37 when the timebase is too narrow to show a complete cycle; widen scale and retry). For delay or phase between two channels use measure_between.
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| channel | Yes | ||
| item | Yes | Measurement item (e.g. FREQUENCY, VPP, VRMS) |