Level Sensing Solutions from Terabee
CABLE-BASED SENSING TECHNOLOGY: weight and cable-based level measurement system with physical moving parts. Inexpensive but less accurate and prone to breakdowns.
LOAD CELLS: This technique measures level variations as a function of the force that the substance exerts on its container.
CAPACITANCE SENSORS: Capacitive level sensing involves the integration of electrodes onto either the external/internal surface of a container and monitoring any changes in capacitance.
ULTRASONIC SENSORS: Higher precision than preceding techniques on this list, ultrasonic level sensing measures level in a container by emitting an ultrasonic frequency into the container headspace and calculating the strength and duration of the echo.
OPTICAL SENSORS: Ideal for real-time contactless level sensing, but the accuracy of these sensors can sometimes be inhibited by the optical properties of the measured media.
RADAR: Accurate, but costly, radar operates on a similar principle to ultrasonic level sensing but with radio waves. Interpreting radar signals to create meaningful data can be more complex than other technologies.
These are just a selection of some of the underlying technologies recommended for level sensing in applications as varied as agriculture, construction, mining, plastics, waste management, water containment, and more. As a direct result of this staggering versatility, there is no one solution to fit all level sensing problems. At Terabee, we specialize in contactless level sensing solutions based on light-emitting diode (LED) time-of-flight (ToF) technology. In this post, we will outline the potential of Terabee’s LED ToF sensing hardware which can serve as a technological foundation to develop specific level sensing applications.
LED ToF Level Sensing Solutions
LED ToF sensors can be used in either area of application, but some calculations may be required to compensate for angles of repose when present, or can be solved by using multiple sensors. For solid level sensing, materials such as coal, cement, gravel, grain, malt, sand, waste and wood chips are common. While they have proven useful for liquid level sensing applications (notably opaque liquids and turbulent liquids), one must consider the potential for LED beams to penetrate through highly transparent liquid surfaces, providing unclear level measurements. With this in mind, Terabee conducted testing in the lab, and on open-water and discovered that this characteristic was less evident than one might have imagined. You can read that report here:
Self-powered, LoRaWAN level sensing solution
The system enables operators to optimize stock replenishment, cut operational costs and reduce dangerous silo audits.
Terabee Stock Level Monitoring System
Key benefits include:
- Contactless and eye-safe LED Time-of-Flight technology
- 60m sensor range! Ideal for tall containers
- Easily deploy one, or multiple, ToF level sensors. Take multiple measurement points in one tank, or deploy a single sensor in multiple tanks
- Computed volume and level data output via Ethernet
- Wireless access to onboard software for fast and easy system setup