ZIAA ARCHIVE RECORDPROTOTYPES
PROT-089prototypeVERIFIED RECORD
Non-Contact Laser Profilometer for Historical Grooved Audio Carriers (Revision 3.2)
PROT-089: OPTICAL-SCANNER-V3CLEARANCE: 4-DELTASTATUS: ARCHIVED SUPERSEDEDYEAR: 2025
Non-Contact Laser Profilometer for Historical Grooved Audio Carriers (Revision 3.2)
Discipline: Signal Archaeology · Lead Researcher: Lucian Mercer
OPERATIONAL ABSTRACT
An optical audio scanner utilizing dual 405nm blue lasers to reconstruct high-fidelity audio from fragile historical lacquer, wax, and metal phonograph discs. Enhanced revision 3 with improved low-noise shielding and updated real-time firmware.
TECHNICAL SUMMARY & TRANSDUCTION DYNAMICS
Laser triangulation and high-speed linear CMOS sensors capture groove wall topography at sub-micron resolution, converting physical groove excursions directly into 192 kHz audio. Calibrated for studio and field use under ZIAA experimental protocols. Harmonic distortion measured under 0.02% across primary operating range.
ENGINEERING SPECIFICATIONS
DIMENSIONS
320 × 350 × 155 mm
OPERATIONAL BANDWIDTH
25 Hz – 54 kHz
POWER CONSUMPTION
51 W (12V DC Linear Supply)
SIGNAL-TO-NOISE
108 dB (A-Weighted @ 1 kHz)
PRIMARY TRANSDUCER
405nm semiconductor laser diodes with high-magnification telecentric optics
COMPUTATIONAL CORE / DSP
FPGA image processing pipeline streaming RAW camera frames over USB3
VECTOR TECHNICAL SCHEMATIC // BLUEPRINT
FIG 4.3 // NON-HERMITIAN WAVEGUIDE & STANDING WAVE VELOCITY
NODE: OPTICAL-SCANNER-V3-CAVPLAYABLE PROTOTYPE ACOUSTIC EMISSION BENCH
ZIAA ACOUSTIC SYNTHESIS TEST BENCH // V4.1STANDBY
OPTICAL-SCANNER-V3 // CALIBRATION PROFILE
CH-A TIME-DOMAIN OSCILLOSCOPE (1024-PT)STEREO BINAURAL
CH-B 64-BAND SPECTRAL OCTAVE DECOMPOSITION20 Hz – 20 kHz
CARRIER220.0 Hz
FM RATE12.1 Hz
BINAURAL Δ±1.5 Hz
CUTOFF2200 Hz
RESONANCE Q6.0
CAVITATION20%
WAVE:
FILTER:
35%
BILL OF MATERIALS (BOM) & COMPONENT TOLERANCES
| Component | Supplier | Part No. | Tolerance |
|---|---|---|---|
| Precision Audio Transducer Assembly | ZIAA Precision Machining Shop | ZIAA-TX-138 | ±0.02 mm |
| Ultra-Low-Noise Operational Amplifiers | Texas Instruments / Burr-Brown | OPA1612A-SOIC8 | 0.000015% THD+N |
| Embedded DSP Microcontroller Core | PJRC / STMicroelectronics | Teensy 4.1 ARM Cortex-M7 | 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-228 | 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.