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| Analogy | Like a “Movie” | Like a “Photograph” | ||
| Product Name | Electronic Sensor | Pressure Indicating Film
| ||
| Suited For | Your two surfaces contact and continue to move and require pressure data capture throughout an interval or time. | Your two surfaces contact and you simply require to get a “snapshot” of the maximum contact pressure between those two surfaces. | ||
| Principle | Electronic Piezo-Resistive Sensor Element | Chemically Reactive Sheet | ||
| Longevity | Sensor elements are reusable. Potential for hundreds of uses. | Film is one time use. Archivable or disposable | ||
| Cost | $5,000+ | ±US $60 per linear foot (30 cm x 27 cm) | ||
| Pressure Range | 0.1 – 200 PSI (0.007 – 14.1 kg/cm2) | 7 different pressure ranges from 8 – 43,200 PSI (0.6 – 3,000 kg/cm2) | ||
| Calibration | Pre-calibrated and subsequently calibrateable by user | Pre-calibrated | ||
| Spatial Resolution | From 0.8 in2 (2 mm) | 10,000 pixels per in2 (1,550 per cm2) | ||
| Data Delivery | Digital with results in Windows® | Visual Observation | ||
| Accuracy | ±10% | ±10% visually, ±2% using Topaq® | ||
| Primary Material(s) | Mylar, Polyimide, Urethane, fabric | Mylar | ||
| Maxiumum Temperatures | 120º F (49º C) | Up to 400º F (204º C) For brief exposure | ||
| Archival Capability | Standard Windows® File Format | Sensor material permanently captures pressure profile. | ||
| Max. Physical Dimension | 203 cm by 73 cm (80 x 29 in) | No Limit | ||
| Reaction Speed | 1/100 second | 1/10,000 second | ||
| Comformability | Up to 2-axis bending | 1-axis bending | ||
| Thickness | 0.1 mm – 0.15 mm | 0.16 mm | ||
Tactilus vs. Prescale
