Overview
| Lead Time | IEPE: 12-16 Weeks, Miniaturized: 16-20 Weeks |
|---|---|
| Bandwidth @ 3 dB | 50 Hz – 900 kHz |
| Bandwidth @ 4 dB | 50 Hz – 1 MHz |
| Sensitivity | 0.9 uV/Pa |
| Max Linear Pressure | 2.1 MPa (300 psi) |
| MDP @ 1 kHz | <1 Pa |
| MDP @ 10 kHz | <0.1 Pa |
| Temperature Range | -40 to 125°C |
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MHzPressure System
Fully calibrated (both magnitude and phase) MHz-bandwidth sensors
Enabling accurate high-speed aerodynamic measurements.
Based on IC2’s proven piezoelectric MEMS microphone technology, the small form factor offers a drop-in replacement of existing instrumentation in scale wind-tunnel models. Gain deeper insights into turbulence, shocks, and acoustic phenomena with our ready-to-use, precision-calibrated sensor.
Validate CFD models and make design decisions with confidence.
With a full magnitude and phase response calibration, MHzPressure® sensors provide unprecedented high-frequency pressure measurement accuracy and resolution, paving the way for advancements in hypersonic flight by providing aerospace engineers with a new tool to improve the fundamental understanding of high-speed transition to turbulence and validate computational models.
- Patented Calibration – capture ultra-high-frequency pressure fluctuations that other sensors miss, giving you more accurate data.
- Wide Dynamic Range – >120 dB dynamic range captures both subtle vibrations and strong pressure surges.
- Easy Integration – Flexible options based on your needs: upgrade existing systems with minimal redesign.
Each sensor comes with a calibration datasheet detailing its performance characteristics.
- The standard calibration is an acoustic calibration at 1kHz and a resonance measurement using a laser vibrometer.
- The advanced calibration includes the standard calibration plus a full magnitude and phase response using our patented reciprocal calibration method across the entire measurement bandwidth.
| Package | Diameter | Length |
|---|---|---|
| IEPE | 3.18 mm (0.125”) | 17 mm (0.67”) |
| Miniaturized | 3.18 mm (0.125”) | 8 mm (0.315”) |
Our team is here to assist with any questions – please reach out at sales@thinkic2.com, call us at 352-283-8110, or click here to schedule a Teams meeting.
From: $1,099
Wide-band performance in hypersonic flow measurement applications.
The fully calibrated sensor provides a direct replacement for existing sensors, enabling quantifiable dynamic pressure measurements in high-speed flows – a critical capability for reduced-scale testing of next-generation hypersonic system designs.
Laminar-to-turbulent boundary layer transition is a key concern in the design of next-generation hypersonic systems; however, the ability to measure when and where transition occurs on a hypersonic article suffers from a lack of proper instrumentation.
NOTE: MHzPressure does not measure static pressure.
The advanced calibration method leverages the reciprocal nature of piezoelectric transduction, using an electrical drive signal to actuate the sensor in reverse and a laser vibrometer to sense the actuated deflection. Through established electromechanical relations, the sensitivity can be found to a high degree of certainty from this deflection measurement. The method is applicable at all frequencies up to and beyond the resonant frequency of the sensor, as actuation drive electronics and modern laser vibrometers are capable of much greater bandwidths (Mills et al., 2020).
- Accurate, quantified dynamic pressure measurements at frequencies up to 1 MHz
- Reciprocal calibration (magnitude and phase) over the entire measurement bandwidth
- Drop-in replacement of existing high-speed pressure sensors
Datasheet
- 4-Wire Power Supply, 0035-A-02, Datasheet • Mar 2024
- 4-Wire Power Supply, 0085-A-00, Datasheet • Sep 2025
- IEPE Power Supply, 0004-A-01, Datasheet • Aug 2025
- MHzPressure Datasheet • Jan 2023
Drawings
Other
Product Flyer
User Manual
- Full calibration (magnitude and phase) over the entire measurement range
- Large dynamic range (>120 dB)
- Smooth sensing element (~10 µm)
- Wide bandwidth (~1 MHz)
- Minimum detectable pressure (MDP): ≤1 Pa (1.5e-4 psi) at 1 kHz, <0.1 Pa (1.5e-5 psi) above 10 kHz
- Maximum linear pressure: 2.1 MPa (300 psi)
- -40 to 125°C continuous operating temperature, limited by electronics
- IEPE model compatible with commercially available IEPE power supplies and data acquisition hardware
- Miniaturized package utilizes IC2’s ASC-0401-SAL four-wire power supply – which provides low-noise power to the sensor, conditions the analog voltage signal for output to a DAQ, and includes a rechargeable Li-ion battery
- Hypersonic flow measurements
- Laminar-to-turbulent boundary layer transition detection
- Second-mode instability experiments
Learn More About Related Applications ↓
Typical MHzPressure specifications; calibration sheets provided with each sensor.
| Bandwidth | Resonant Frequency | Sensitivity | Max Linear Pressure | Minimum Detectable Pressure | ||
|---|---|---|---|---|---|---|
| 50Hz- 50Hz- | 900kHz 1MHz | @+3dB @+4dB | 1.6 MHz | 0.9 uV/Pa | 2.1 MPa (300 psi) | <1 Pa @ 1 kHz <0.1 Pa @ >10 kHz |
- Sensing element size: 0.42 mm
- Rectangular sensor head for custom multi-sensor packages available upon request to enable tighter sensor spacing
| Package | Diameter | Length |
|---|---|---|
| IEPE | 3.18 mm (0.125”) | 17 mm (0.67”) |
| Miniaturized | 3.18 mm (0.125”) | 8 mm (0.315”) |
Do MHzPressure sensors measure static pressure?
No, MHzPressure sensors only measure fluctuating pressure over the bandwidth of <50 Hz – 1 MHz.
Does the sensor survive at high pressures?
MHzPressure is designed as a front vented AC only sensor. This means the sensor may be used in high static pressure environments (>300 psi) without affecting the sensor’s Max Pressure and/or Dynamic Range. For very high static pressure applications please contact IC2 for technical limits and best practices.
How is the sensor grounded?
The housing is electrically connected to the cable shield, which in turn is connected to the BNC shield/ground; however, the signal conditioner runs on batteries, so the ground for the sensor and signal conditioner should be the DAQ input. If installing the sensor in a metal model, IC2 can provide very thin (0.00025” wall thickness) heat shrink tubing that can be installed over the sensor housing to insulate the sensor from the model.
How are MHzPressure sensors calibrated?
These sensors are calibrated using a patented technique leveraging a laser vibrometer to perform a high-frequency reciprocal transducer calibration. This calibration technique allows IC2 to obtain accurate, quantifiable calibrations across the entire measurement bandwidth.
What is the difference between standard and advanced calibration?
The standard calibration is an acoustic calibration at 1kHz and a resonance measurement using a laser vibrometer. The advanced calibration is the standard calibration plus a full magnitude and phase response across the entire bandwidth using the laser vibrometer.