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Measuring Principle
The ultrasonic thickness gauge determines the thickness of a part or structure by accurately measuring the time required for a short ultrasonic pulse generated by a transducer to travel through the thickness of the material, reflect from the back or inside surface, and be returned to the transducer. The measured two-way transit time is divided by two to account for the down-and-back travel path, and then multiplied by the velocity of sound in the material. The result is expressed in the well-known relationship:
Where:H－Thickness of the test piece.
v－Sound Velocity in the material.
t－The measured round-trip transit time.
Specifications
| Multi-mode | Pulse-Echo mode and Echo-Echo mode |
| Three working modes | normal mode, scanmode and diff mode |
| Units | Metric and Imperial unit selectable |
| Resolution | 0.1mm/0.01mm/0.001mm |
| Measuring Range | 0.65-600mm( P-E), 3-100mm (E-E) |
| Model | Freq MHz | Φ mm | Measuring Range | Lower limit | Description |
| N02 | 2.5 | 14 | 3.0mm～300.0mm(In Steel) 40mm (in Gray Cast Iron HT200) | 20mm | for thick, highly attenuating, or highly scattering materials |
| N05 | 5 | 10 | 1mm～600.0mm (In Steel) | Φ20mm×3.0mm | Normal Measurement
|
| N05 /90° | 5 | 10 | 1mm～600.0mm (In Steel) | Φ20mm×3.0mm | Normal Measurement |
| N07 | 7 | 6 | 0.65mm～200.0mm (In Steel) | Φ15mm×2.0mm | For thin pipe wall or small curvature pipe wall measurement |
| HT5 | 5 | 12 | 1～600mm (In Steel) | 30mm | For high temperature (lower than 300℃) measurement. |
| P5EE | 5 | 10 | P-E: 2~600mm E-E: 2.5~100mm | Φ20mm×3.0mm | Normal Measurement and trough-coating thickness testing |
Configuration
| No | Item | Qty. | Note | |
| Standard Config. | 1 | Main body | 1 | |
| 2 | Probe P5EE(5MHz) | 1 | ||
| 3 | Couplant | 1 | ||
| 4 | Instrument Case | 1 | ||
| 5 | Operating manual | 1 | ||
| 6 | Alkaline battery | 2 | AA size | |
| 7 | Data Pro Software | 1 | ||
| 8 | USB Cable | 1 | ||
| Optional Config. | 1 | Probe N02 (2.5MHz) | See Table1.1 | |
| 2 | Probe N05/90°(5MHz) | |||
| 3 | Probe N05 (5MHz) | |||
| 4 | Probe N07(7MHz) | |||
| 5 | Probe HT5(5MHz) |
The surrounding environment should avoid of vibration, strong magnetic field, corrosive medium and heavy dust.