DIRECT ANSWER
What is the practical starting point?
Radar uses electromagnetic waves; ultrasonic measurement uses sound. Vapor composition, temperature gradients, pressure, foam, dust, range and mounting can make one principle more suitable than the other.
SELECTION FACTORS
Data to confirm before model selection
Use this list to prepare a traceable quotation request.
- 01Use process conditions—not purchase price alone—to compare technologies.
- 02Review vapor, temperature gradient and pressure for ultrasonic measurement.
- 03Review dielectric response, foam and false echoes for radar.
- 04Confirm dead zone, beam angle, nozzle and obstructions for both.
TECHNOLOGY COMPARISON
Compare the decision factors
| Question | Radar | Ultrasonic |
|---|---|---|
| Wave type | Electromagnetic | Acoustic |
| Vapor and temperature gradient | Often less directly dependent on sound speed | Can affect sound propagation |
| Pressure suitability | Depends on model and process seal | Often limited by transducer construction |
| Foam and dust | Application dependent | Can attenuate the acoustic signal |
FAQ
Questions engineers ask first
Last reviewed:
Is radar always more accurate?
No general accuracy claim is valid across all models and applications. Compare controlled specifications after defining the process.
Can ultrasonic work in an open water tank?
It is often considered for open tanks, but vapor, foam, wind, temperature gradients and mounting still need review.
ENGINEERING SUPPORT
Turn process data into a reviewable instrument request.
Share the medium, operating envelope, installation and required output. We will flag missing information before confirming a model.