Domain: Engineering — Instrument and Meter Engineering
Target concept: Platinum Resistance Temperature Sensor

Video generation prompt: The probe of the platinum resistance temperature sensor was immersed sequentially into a 0°C ice-water bath, 25°C ambient water, and 100°C boiling water (fully submerged). The sensor was connected to a digital temperature monitor, with the camera aimed at the display screen of the monitor. After each immersion, the probe was kept stationary for 3 seconds.

Evaluation guide:
(i) Target concept: Visual verification of platinum RTD calibration via sequential three-point thermal immersion (ice point, ambient reference, boiling point).
Minimum mechanism: Probe must be electrically connected to a working digital temperature monitor; immersion events must be thermally distinct and temporally separated; monitor must transduce resistance change into displayed temperature value with causal fidelity.
(ii)Storyline: [Frame 0–3] Probe enters ice-water bath → monitor displays low-value number → probe holds still → number stabilizes. [Frame 4–6] Probe lifts, moves laterally, enters ambient water → monitor clears or updates → displays mid-value number → probe holds still → number stabilizes. [Frame 7–10] Probe lifts, moves laterally, enters boiling water → monitor clears or updates → displays high-value number → probe holds still → number stabilizes. Perspective: Fixed frontal view capturing probe tip, liquid surfaces, and monitor display region simultaneously; no cuts, no POV shifts, no occlusion of critical zones.

Manual:
Experimental Procedure
1. Place platinum resistance temperature sensor probe into 0°C ice-water bath until fully submerged; hold still for 3 seconds.
2. Remove probe, then fully submerge into 25°C ambient water; hold still for 3 seconds.
3. Remove probe, then fully submerge into 100°C boiling water; hold still for 3 seconds.
4. Camera frames digital temperature monitor display throughout all steps.
Observation of Experimental Phenomena
- Monitor displays ~0°C during first immersion, ~25°C during second, ~100°C during third.
- Ice-water bath shows visible ice cubes/slush; boiling water shows vigorous surface bubbles and rising steam.
Summary of Experimental Principles
Platinum resistance temperature sensors exploit the predictable, nearly linear increase in electrical resistance of pure platinum with rising temperature; calibration points at 0°C (ice point), 25°C (reference ambient), and 100°C (boiling point) verify sensor accuracy and linearity.

Prompt Grounding rubric:
level_1: The RTD probe, the digital monitor's display, or all three liquids (ice-water bath, ambient water, boiling water) are missing from the clip; or the probe is only ever shown in one bath with no sequential immersion; or the monitor screen is never in frame.
level_2: At least one of the three baths appears along with a probe-like object, but the monitor's display is never visible and the clip never shows the probe moving from one bath to the next; or the monitor is visible but its screen never shows any numbers.
level_3: All three baths are recognizable by contextual cues (ice chunks in the first, plain water in the second, steam or surface bubbles in the third); the probe is shown fully submerged in each bath in turn, first to second to third; the monitor's display is visible and shows some numeric reading during each immersion; none of the three baths or immersion steps is skipped.
level_4: Everything required for score 3 holds, and additionally the probe stays visibly still during each 3-second dwell after insertion; the monitor display stays in view the whole time without being blocked, going dark, or cutting away, across all three immersions.
level_5: Everything required for score 4 holds, and additionally the same camera framing shows the probe, all three baths, and the monitor display together in one uninterrupted shot; the probe is never carried off-screen between baths; each new reading on the monitor only appears after the probe has entered the next bath and settled, not before.

Scientific and Causal Correctness rubric:
level_1: The displayed readings contradict the bath the probe is actually in (e.g., a near-100°C reading shown while the probe sits in the ice-water bath, or the reverse); or the three readings appear in the wrong order relative to which bath comes first, second, third; or a reading is physically implausible for the setup (well above 100°C or well below 0°C).
level_2: At least one bath shows a reading that doesn't match its temperature category (for instance the ambient-water bath showing a near-0°C or near-100°C reading); or the monitor shows the same unchanging number through all three immersions.
level_3: The monitor shows three distinct readings, one per bath; the reading during the ice-water immersion is the lowest of the three, the ambient-water reading is in the middle, and the boiling-water reading is the highest; no reading repeats, and each number is shown only while the probe sits in that bath.
level_4: Everything required for score 3 holds, and additionally the three readings are plausible for their baths: the ice-water reading sits near 0°C, the ambient-water reading sits in a comfortable room-temperature range (roughly high teens to high 20s °C), and the boiling-water reading sits at or just under 100°C; no reading contradicts what the bath looks like (e.g., no near-freezing number while the bath is visibly steaming).
level_5: Everything required for score 4 holds, and additionally each new reading only appears after the probe is fully in its next bath and has stopped moving; no reading starts changing before the probe makes contact with the liquid, and no leftover reading from the previous bath lingers after the probe has moved on.

Spatiotemporal Consistency rubric:
level_1: The probe suddenly appears in a different bath with no travel shown in between; the monitor display jumps to a different size, position, or shape on screen; one of the three baths disappears from the table and reappears later; the overall lighting on the scene switches abruptly with no visible cause.
level_2: The probe leaves the frame while moving between baths and comes back facing a different way; the monitor screen blinks off then on, or changes size; one bath momentarily vanishes and reappears in a different spot on the table.
level_3: The probe, the three baths, and the monitor keep the same positions relative to one another throughout the clip; none of the baths disappears or reappears; the probe's movement from one bath to the next is shown as continuous travel rather than a jump cut.
level_4: Everything required for score 3 holds, and additionally the probe's path between baths is fully visible with nothing blocking it mid-transit; the liquid surface in each bath stays undisturbed except right when the probe enters it; the monitor's display updates cleanly with no flash or freeze, staying in the same part of the frame.
level_5: Everything required for score 4 holds, and additionally the still pause after each immersion reads as genuinely motionless — the probe tip and the monitor's display region show no detectable drift or wobble during the hold; the reading appears only after the probe has stopped moving, with no odd delay or overlap between the two events.