NovaPT®-E 1500°C Pressure and Temperature Sensing System Requires No Standoff Tube, Reducing Signal Distortion
NovaPT-E from Sentek Instrument offers the highest temperature rating (1500°C) available commercially. The patented design of the optical pressure and temperature sensor offers multiple measurement readings in one, compact, rugged sensor. Sensing functions include dynamic pressure, static pressure, temperature, and multiple spatially separated temperatures. Interrogator and software options allow users to unlock any or all of these intrinsic measurement functions from the same sensor probe. Eye-safe, near-infrared light enables long-distance fiber optic signal transmission without distorting dynamic pressure signals.
Key Features
- Reliable operation at 1000°C continuous; 1500°C intermittent
- Compact 3.75mm sensor tip
- High-frequency response up to 60kHz
- No need for sensor cooling or standoff tubes
- Resistant to EMI, corrosion, thermal shock, and neutron radiation
- Fully passive — no on-site power required
- Long-distance fiber optic signal transmission
Ideal For
- Gas turbine engines (conventional & unconventional)
- Advanced electric power generation systems
- High-temperature industrial processes
- High-temperature chemical processes
- Laboratory R&D applications
Technical Specifications
Details
Sensors
| Sensor Models | NovaPT-E600 | NovaPT-E4000 |
| Maximum Static Pressure | 40bars (580psi) | 250bars (3,626psi) |
| Diaphragm Resonance Frequency | 460kHz | 830kHz |
| Sensor Tip Diameter | 3.75mm | |
| Combined Non-linearity, Hysteresis and Repeatability | <1% F.S. | |
| Maximum Sensor Tip Temperature | 1000oC (1832oF) for continuous use, 1500oC (2732oF) for pulse temperature | |
| Installation Thread | M7x1.0 | |
| Fiber Cable Length | 0.35m 300oC rated fiber cable; 15m extension cable option available | |
Interrogators
| Interrogator Models | Fasedyne 1000 | Fasedyne 2000 | Fasedyne 3000 |
| Measurement | Dynamic Pressure | ||
| Frequency Response | 20Hz-4kHz | 20Hz-25kHz | 20Hz-60kHz |
| Percent Resolution (1σ) | <0.01% | <0.03% | <0.04% |
| Sampling Rate | 27kHz | 80kHz | 120kHz |
| Sensor Channels | 1, 2 or custom | 1, 2 or custom | 1 only |
| Dimensions | 26x108x180mm, 1 or 2 channels Custom instrument enclosure for >2 channels | ||
| Power Supply and Consumption | 12VDC, 4W | ||
| Digital Output | USB Micro-B | ||
| Analog Output (Optional) | SMA, 0-5V, Hi-Z load | ||
| Trigger Input | SMA, 50Ω terminated, 10V (Max) | ||
| Environmental Conditions | -10 to 45oC, 5-90% humidity | ||
| Software | Flexible data display, storage control or spectrum analysis | ||
Sensor Probe
Details
The NovaPT™-E sensor is housed in a rugged, oxidation- and corrosion-resistant metal package, and has a 3.75mm tip diameter. A standard M7x1.0mm mounting thread with a metal crush seal ring ensures fast, secure, and leak-free installation simple.
The sensor supports continuous operation up to 1000oC and pulse or short-duration measurements up to 1500oC. For even more demanding applications, higher temperature ratings and custom form factors are available on request, providing flexibility without compromising performance.
Sensor Interrogators and Software
Details
NovaPT-E is a truly multi-functional sensing platform, capable of measuring dynamic pressure, static
pressure, and temperature — including multiple temperatures at different sensor axial positions — all within a single device. These capabilities are easily enabled through selectable interrogator configurations, eliminating the need for any sensor redesign or fiber cable modifications.
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| Fasedyne interrogator rear panel view | Graphical user interface |
Fasedyne Dynamic Pressure Interrogator
The Fasedyne is a compact, high-performance interrogator engineered for precise dynamic pressure measurements in extreme environments. When paired with the NovaPT-E sensor, it enables direct measurement at ultra-high temperatures—eliminating the need for standoff tubes or water cooling and simplifying system integration.
Its miniature sensor compatibility allows accurate measurements in space-constrained environments without compromising signal fidelity. Designed for demanding applications, Fasedyne delivers both 0–5V analog and digital outputs, providing seamless integration into a wide range of data acquisition and control systems.
With its small form factor, lightweight design, and low power consumption, Fasedyne is well-suited for embedded applications and can be configured for operation in ambient temperatures up to 125°C, making it an excellent candidate for integration into Full Authority Digital Engine Control (FADEC) systems in aerospace platforms.
A user-friendly graphical interface enables real-time visualization and analysis on an external PC. In addition to time-domain pressure traces, users can perform advanced frequency-domain analysis via Discrete Fourier Transform (DFT), with flexible visualization options including single-shot spectra, time evolving waterfall plots, and 3D representations.
Sentek can also offer additional specially designed interrogators to further unlock the other intrinsic measurement functionalities offered by the NovaPT-E sensor. These interrogators need to be custom ordered for measurement of static pressure, temperature, and multiple temperatures for deduction of other quantities such as heat flux.
Relevant Data
Details
SENSORS
NovaPT-E utilizes a precision optical transduction method to measure the deflection of a single-crystal sapphire diaphragm, delivering highly stable and repeatable pressure measurements in extreme environments. Because sapphire’s mechanical properties, particularly Young’s modulus, vary predictably with temperature, the sensor’s response is inherently temperature dependent and fully characterized across its operating range.
This behavior is carefully calibrated through pressure measurements at varying temperatures, resulting
in an exceptionally low temperature coefficient of just 0.010% of reading per °C up to 900°C. Importantly,
published data confirm that sapphire maintains a consistent, near-linear modulus response at
temperatures extending beyond 1400°C, enabling reliable performance and predictable behavior even
in ultra-high-temperature applications.
INTERROGATORS
Fasedyne interrogation instruments are engineered to deliver a flat, broadband frequency response,
ensuring high-fidelity dynamic pressure measurements across a wide spectral range. Each model is
precisely tuned to provide consistent signal accuracy within its operating band, with sharp, well-defined
roll-offs at both low and high frequency cutoffs.
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| Fasedyne-1000 | Fasedyne-2000 | Fasedyne-3000 |
This performance is achieved through a tightly integrated design of advanced analog electronics, digital
filtering, and proprietary signal processing algorithms. The result is a stable, repeatable frequency
response that maintains accuracy across a broad dynamic range, enabling reliable capture of even the
most complex pressure fluctuations.