ZIAA ARCHIVE RECORDPROTOTYPES
PROT-018prototypeVERIFIED RECORD
Motorized Haptic Feedback Keyboard with Dynamic Spring Resistance
PROT-018: HAPTIC-KEYBOARDCLEARANCE: 3-GAMMASTATUS: RESTRICTED EVALYEAR: 2026
Motorized Haptic Feedback Keyboard with Dynamic Spring Resistance
Discipline: Perceptual Interfaces · Lead Researcher: Camille Laurent
OPERATIONAL ABSTRACT
A 49-key performance interface where each key is driven by a motorized actuator that simulates physical hammer actions, spring tension, or hydraulic fluid resistance.
TECHNICAL SUMMARY & TRANSDUCTION DYNAMICS
Individual coreless DC motors provide programmable force-feedback at 4 kHz refresh rates, allowing keys to physically push back or click at microtonal scale divisions. Calibrated for studio and field use under ZIAA experimental protocols. Harmonic distortion measured under 0.02% across primary operating range.
ENGINEERING SPECIFICATIONS
DIMENSIONS
360 × 385 × 135 mm
OPERATIONAL BANDWIDTH
20 Hz – 50 kHz
POWER CONSUMPTION
18 W (PoE+ Gigabit Ethernet)
SIGNAL-TO-NOISE
107 dB (A-Weighted @ 1 kHz)
PRIMARY TRANSDUCER
High-torque coreless motors coupled to quarter-sawn maple key levers
COMPUTATIONAL CORE / DSP
Distributed network of STM32F0 microcontrollers over isolated CAN bus
VECTOR TECHNICAL SCHEMATIC // BLUEPRINT
FIG 3.2 // POLAR RADIATION DIRECTIVITY & NULL LOBES
POLAR: HAPTIC-KEYBOARDPLAYABLE PROTOTYPE ACOUSTIC EMISSION BENCH
ZIAA ACOUSTIC SYNTHESIS TEST BENCH // V4.1STANDBY
HAPTIC-KEYBOARD // CALIBRATION PROFILE
CH-A TIME-DOMAIN OSCILLOSCOPE (1024-PT)STEREO BINAURAL
CH-B 64-BAND SPECTRAL OCTAVE DECOMPOSITION20 Hz – 20 kHz
CARRIER247.5 Hz
FM RATE10.9 Hz
BINAURAL Δ±2.0 Hz
CUTOFF940 Hz
RESONANCE Q7.0
CAVITATION23%
WAVE:
FILTER:
35%
BILL OF MATERIALS (BOM) & COMPONENT TOLERANCES
| Component | Supplier | Part No. | Tolerance |
|---|---|---|---|
| Precision Audio Transducer Assembly | ZIAA Precision Machining Shop | ZIAA-TX-117 | ±0.02 mm |
| Ultra-Low-Noise Operational Amplifiers | Texas Instruments / Burr-Brown | OPA1612A-SOIC8 | 0.000015% THD+N |
| Embedded DSP Microcontroller Core | PJRC / STMicroelectronics | STM32H743VIT6 480MHz | Industrial -40C to +85C |
| Conductive Plastic Continuous Potentiometers | Bourns Electronics | 3852A-282-103AL | ±10% Linear |
| Machined Anodized Aluminum Enclosure | ZIAA Mechanical Prototyping Bench | ENC-AL-217 | MIL-A-8625 Type II |
BENCH & FIELD OPERATION NOTES
- High acoustic output capability: monitor SPL levels during resonant feedback experiments.
- Precision optical components: protect lenses from direct dust and moisture during field deployment.
SPECULATIVE PATENTS:PAT-2026-018
FIELD SITES:Studio B (Physical Computing & Speculative Hardware)