Precision Sensors’ Echolocity® Velocity Sensor monitors exhaust velocities in Semi Fabs and processes, allowing users to optimize flow rates to reduce operating costs, increase production yields, and improve safety.
Precision Sensors is offering the proven Echoline® Low Differential Pressure sensor with a Pitot Tube Assembly for air velocity measurements. When installed into the ductwork, the pitot tube allows the Echoline® sensor to measure static and pitot pressures within the duct. Velocities can then be calculated using the pressure measurements and Bernoulli’s Principle.
Benefits
ECHOLOCITY® Velocity Sensor Benefits and Differentiators
Precision Flow Velocity Measurement Without Intrusion
The ECHOLOCITY® Velocity Sensor is a non-invasive ultrasonic sensing solution designed to measure flow velocity in critical process environments accurately. Using high-frequency acoustic signals, the sensor evaluates flow behavior without requiring direct contact with the media—helping reduce contamination risk and maintenance requirements.
Unlike traditional mechanical flow devices, ultrasonic velocity sensing eliminates moving parts, increasing long-term reliability and minimizing wear. This makes it ideal for applications where uptime, cleanliness, and precision are essential.
Key Benefits
- Non-contact measurement protects sensitive processes
- No moving components for improved durability
- High accuracy across a wide range of flow conditions
- Suitable for harsh, high-purity, or corrosive environments
Ultrasonic sensors operate by transmitting sound waves and analyzing the returning signal, enabling precise measurement even in challenging conditions where optical or mechanical devices may fail.
Why Choose the ECHOLOCITY® Velocity Sensor?
- Non-Intrusive Measurement Eliminates the need to penetrate piping or systems—reducing leak points and simplifying installation.
- Designed for High-Purity Environments Ideal for semiconductor and clean-process applications where contamination control is critical.
- Low Maintenance, High Reliability No moving parts means less wear, fewer failures, and reduced lifecycle costs.
- Fast, Real-Time Data Output Supports responsive control systems with immediate flow insights.
- Easy Integration Compatible with modern automation platforms (PLC, SCADA, DCS), enabling seamless deployment into existing systems.
How It Works
ECHOLOCITY® Velocity Sensor Technology
Advanced Ultrasonic Echolocation for Flow Velocity
The ECHOLOCITY® Velocity Sensor uses ultrasonic echolocation principles to determine flow velocity. It emits high-frequency sound waves into the process stream and measures changes in the returning signal caused by fluid movement.
Because sound travels at a known speed, the system can calculate velocity based on how the signal shifts when interacting with moving media. This method enables accurate, repeatable measurements without interrupting the process.
Why Ultrasonic Technology Stands Out
- Works independently of fluid color, transparency, or conductivity
- Performs reliably in low-light, high-noise, or particulate-heavy environments
- Provides fast response times for real-time monitoring
- Maintains accuracy without direct exposure to the process media
Ultrasonic sensing is widely used in industrial automation because it delivers consistent results in environments where other sensing technologies struggle.
Applications
ECHOLOCITY® Velocity Sensor Applications
The ECHOLOCITY® Velocity Sensor is engineered for industries that require precise monitoring and strict process control.
Common applications include:
- Semiconductor manufacturing – Ensures stable gas and fluid delivery
- High-purity process systems – Prevents contamination in sensitive environments
- Chemical processing – Monitors flow in corrosive or hazardous media
- Energy & utilities – Tracks flow performance in critical infrastructure
- Industrial automation – Enables real-time process optimization
Because the sensor does not require direct contact, it is especially valuable in applications involving aggressive chemicals, ultra-clean systems, or hard-to-access installations.
Q & A
ECHOLOCITY® Velocity Sensor Q & A
Industries with strict process control requirements—such as semiconductor manufacturing, chemical processing, and high-purity systems—gain the most value due to the sensor’s precision and non-invasive design.
Downloads
Download UE Precision Sensors Echoline® Velocity Sensor Datasheet
Download UE Precision Semiconductor Safety and Process Control Sensors Application Guide
Call us today at (855) 737-4714 to learn more, or fill out our online form, and someone will get back to you.