Distributed Fiber Optic Sensing Systems (DTS & DAS)
Raman DTS, coherent Rayleigh DAS and fiber well logging systems that turn standard optical fiber into a continuous sensing line for temperature, vibration and acoustic events.
Raman DTS, coherent Rayleigh DAS and fiber well logging systems that turn standard optical fiber into a continuous sensing line for temperature, vibration and acoustic events.
HERTZINNO distributed fiber optic sensing systems turn standard optical fiber into a continuous sensing line for temperature, vibration and acoustic events. Our DTS, DAS and well logging systems support long-distance monitoring of pipelines, power cables, tunnels, perimeter routes, oil & gas wells and data center infrastructure.
Distributed acoustic sensing for vibration, intrusion, leak noise and long-distance route security.
High-precision linear heat detection and real-time online monitoring for critical thermal assets.
High-fidelity long-range DAS system designed for oil & gas well logging and reservoir monitoring.
HERTZINNO uses light scattering physics to turn standard optical fiber into a long-distance sensing medium for vibration, acoustic events, temperature changes and asset safety monitoring.
Distributed Acoustic Sensing relies on coherent Rayleigh scattering. When external vibration or acoustic
events such as digging, footsteps, vehicle movement or leak noise act on the fiber, they create tiny
changes in the optical path and phase of the backscattered light.
By analyzing these elastic scattering signals along the fiber, the system can reconstruct vibration
events and locate them over long distances.
Distributed Temperature Sensing uses Raman scattering. Unlike elastic scattering, Raman scattering is an
inelastic interaction where photons exchange energy with the fiber molecules.
The backscattered signal contains Stokes and Anti-Stokes components. Because the Anti-Stokes signal is
highly temperature-sensitive, the system calculates the temperature profile along the fiber by comparing
the signal ratio at each location.
Three fiber optic sensing architectures for different measurands and distances. Pick by what you need to detect and how far the fiber must reach.
| System | Sensing Type | Distance | Key Specifications | Best For |
|---|---|---|---|---|
| HZ-DTS-1004 Series | Distributed temperature (Raman OTDR) | Up to 13 km | 0.1 °C temperature resolution; ±0.5 °C accuracy; models 1004 / 1008 / 1016 | Power cables, tunnels, data centers & fire-risk monitoring |
| HZ-iDAS 10 / 20 / 50 | Distributed acoustic & vibration (coherent Rayleigh) | 5 / 20 / 50 km by model | Spatial resolution 5–10 m; bandwidth up to 20 kHz; 1–2 channels; Class 1 laser | Pipeline security, perimeters, conveyor belts & route monitoring |
| FS-5100 | Oilfield DAS & fiber optic well logging | Downhole / wellbore deployment | Fiber-optic sensing engineered for oil & gas well environments | Oilfield well logging & reservoir monitoring |
Yes. Many long-distance assets benefit from both systems. DTS provides temperature visibility, while DAS provides vibration and disturbance awareness. Together they support more complete route-level monitoring.
HZ-DTS is recommended for distributed temperature sensing. HZ-iDAS is recommended for distributed acoustic sensing. FS-5100 is recommended for oilfield DAS and well logging applications.
Tell us the route length, what you need to detect and the installation environment. Our engineers will recommend the right fiber sensing architecture and system configuration for your project.
