Ultrasonic transit-time measurement in hot flue gas
The BBFM-Q1M-C is a 1 MHz ultrasonic transducer for flue-gas flow measurement. Applications include boiler exhaust monitoring, industrial emission ducts and high-temperature gas transit-time measurement.
The transducer operates from -20 to +100°C and is rated for pressure up to 10 kgf or 1 MPa. IP68 protection is specified for the product.
Acoustic and electrical specifications
| Parameter | Specification |
|---|---|
| Model | BBFM-Q1M-C |
| Center frequency | 1 MHz ±5% |
| Minimum impedance | 30 Ω ±50% |
| Capacitance | 2,500 pF ±20% at 1 kHz |
| Operating voltage | Peak voltage <300 Vpp |
| Operating temperature | -20 to +100°C |
| Pressure rating | ≤10 kgf or 1 MPa |
| Beamwidth | -3 dB half-power angle: 4.6° ±10% |
| Protection rating | IP68 |
Flue and emission-duct applications
- Flue-gas flow measurement
- Boiler exhaust monitoring
- Industrial emission ducts
- High-temperature gas transit-time measurement