1、 Product Core Value: Redefine Dynamic Pressure Measurement Standards

In the fields of experimentation, blasting testing, and aerodynamics research today, the precision requirements for dynamic pressure measurement are increasing at an increasing rate. Traditional pressure sensors can no longer meet modern testing requirements in terms of response speed, anti-interference ability, and environmental adaptability. The birth of the F5502A series of miniature high-frequency pressure sensors marks a new stage in dynamic pressure measurement technology.

This revolutionary sensor utilizes piezoelectric crystal sensing technology, combined with a stainless steel 17-4 housing and welding sealing process, to achieve ultra-high resonance frequency of 500kHz and rise time of<1 microsecond while maintaining a miniaturized volume (<6 grams). This means that it can accurately capture transient pressure signals such as explosion shock waves, supersonic airflow separation, and chamber pressure changes, providing researchers with data accuracy that traditional equipment cannot match.

Of particular note is its level of environmental adaptability: a wide temperature operating range of -73 ℃ to+135 ℃, an instantaneous high temperature tolerance of 1649 ℃, and an impact resistance of 20000g, making it a reliable choice for testing environments. In a recent static pressure test of a certain type, the F5502A series sensor performed excellently, with user feedback stating that 'it obtained pulse spectrum data that is three times clearer than traditional sensors'.

2、 Analysis of Technological Innovation: Detailed Explanation of Six Core Advantages

1. Ultra high frequency response and fast response capability

The 500kHz resonance frequency of the F5502A series can be considered, which far exceeds the level of 100-200kHz for ordinary dynamic pressure sensors. Cooperate with the technical team to optimize the sensing structure through finite element modal analysis, and raise the natural frequency of the sensitive element to the state. The selection of piezoelectric crystal materials and special polarization treatment processes ensure stable electrical signal output even in high-frequency vibration environments.

2. Anti interference design

Modern testing sites are filled with various types of electromagnetic interference, which poses a serious challenge to the signal quality of sensors. The F5502A series adopts IEPE integrated circuit technology with built-in signal conditioning function, effectively suppressing noise interference during long-distance transmission. Its unique signal ground to shell direct connection architecture solves the grounding circuit problem in complex electromagnetic environments. Tests have shown that in strong RF interference environments (10V/m, 1GHz), the signal distortion of F5502A is less than 0.1%, far superior to the industry standard of 1%.

3. Environmental adaptability performance

The sensor adopts a fully welded sealing process to achieve an IP68 protection level, which can prevent moisture, dust, and corrosive gases from entering. The stainless steel 17-4 shell has undergone special heat treatment to maintain high strength while possessing excellent corrosion resistance.

In terms of high-temperature performance, in addition to its instantaneous tolerance at 1649 ℃, its sensitivity temperature drift coefficient of 0.054%/℃ ensures measurement stability over a wide temperature range. A comparative test conducted in a wind tunnel laboratory showed that the zero drift of F5502A during temperature cycling from -50 ℃ to+120 ℃ is only 1/5 of that of conventional sensors.

4. Advantages of miniaturization and system integration

The micro design with a weight of less than 6 grams allows the F5502A to be embedded in narrow spaces inside the projectile for in-situ measurement. The 10-32 standard interface is compatible with multiple installation options, simplifying the system integration process. Users can choose a complete solution from a 3-meter dedicated cable to an 8-channel data acquisition system, achieving a convenient 'plug and test' experience.

5. Overload protection and long-term stability

The innovative mechanical limit structure design enables the sensor to withstand overpressure impacts of 10000 PSI (F5502A-1K model) without damage. The piezoelectric element adopts pre compression installation technology to ensure that it maintains its initial sensitivity even in long-term vibration environments. The measured data shows that after continuous operation for 500 hours under 2000g vibration conditions, the sensitivity change is less than 0.5%.

6. A complete measurement system ecosystem

F5502A is not an isolated sensor, but the core of a complete measurement system. The accompanying IN-03 signal conditioner can provide 3-channel parallel processing capability, and the IN-3062 data acquisition system supports a 200kHz synchronous sampling rate. Multiple cable options (10-32 to BNC, BNC to BNC, etc.) meet different interface requirements, forming an end-to-end solution.

3、 Typical application scenarios and customer value

1. System development and testing

In rocket engine testing, F5502A can accurately record the frequency and amplitude of combustion chamber pressure oscillations, helping engineers optimize fuel injection parameters. The test data of a certain model of solid rocket engine shows that the recognition rate of unstable combustion phenomenon has increased by 60% after using F5502A.

Customer value:

Early detection of combustion instability risks

Shorten engine development cycle by over 30%

Reduce the economic losses caused by test drive failures

2. Blasting Engineering and Shock Wave Research

For explosion shock wave testing, a sensor resolution of 0.001 PSI can clearly record the attenuation process of shock wave overpressure. In the latest equivalent comparison experiment, researchers successfully distinguished the difference in pressure waveforms generated by 0.5kg and 0.55kg charges.

Customer value:

Accurately evaluate the blasting effect

Optimize the charge structure and save the cost of blasting materials

Provide reliable data support for protective engineering design

3. Aerodynamic research

In transonic wind tunnel tests, a frequency response capability of 500kHz can fully capture pressure pulsations caused by airflow separation. A certain type of aircraft airfoil testing project used the F5502A array to observe the transient process of vortex generation at a specific angle of attack.

Customer value:

Discovering aerodynamic phenomena that are difficult to capture with traditional methods

Verify the accuracy of CFD simulation results

Shorten the aerodynamic shape optimization cycle

4. Testing and Terminal Effect Evaluation

For the development of armor piercing shells, sensors can record the pressure change curve during the penetration process of the projectile into armor. After using F5502A, a certain unit successfully optimized the warhead structure, resulting in a 15% increase in penetration depth performance.

Customer value:

Quantitative evaluation of terminal effects

Optimization of finger structure

Reduce the number of live fire tests and lower research and development costs

4、 Deep interpretation of technical parameters

1. Range and Sensitivity Selection Guide

F5502A offers two basic ranges of 50PSI and 1000PSI, which can be extended to 200% range through ± 10V output. Users should choose reasonably based on the stress characteristics of the test object:

Explosive Wave Test: Recommended F5502A-1K (1000PSI) model to capture instantaneous high pressure

Aerodynamic noise research: Suggest F5502A-50 (50PSI) model to improve resolution

In terms of sensitivity, the 50PSI model provides a high output of 100mV/PSI, suitable for detecting weak signals; The output of 5mV/PSI for the 1000PSI model is more suitable for high-pressure environments.

2. Key indicators of dynamic performance

Rise time: The response time from 10% to 90% of full scale determines the fidelity of the waveform front edge

Low frequency response: -5% attenuation point, F5502A-50 is 0.5Hz, suitable for quasi-static process monitoring

Discharge constant:>20 seconds (F5502A-1K), ensuring the integrity of low-frequency signals

3. Environmental adaptability parameters

Vibration limit: 2000g (equivalent to 20000m/s ²)

Impact limit: 20000g (transient)

Temperature range: -73 ℃ to+135 ℃ (conventional operation), 1649 ℃ (instantaneous)

5、 Measurement system configuration plan

Based on different application scenarios, we recommend the following three typical configurations:

Basic configuration (single point measurement)

F5502A sensor x 1

11-3 cable (10-32 to BNC) x 1

Oscilloscope or acquisition card (bandwidth>1MHz)

Standard configuration (multi-channel synchronization)

F5502A sensor x 3

10-3 cable (10-32 to 10-32) x 3

IN-03 signal conditioner x 1

21-3 cable (BNC to BNC) x 3

IN-3062 acquisition system x 1

6、 Service and Support System

Each F5502A sensor undergoes vibration table calibration before leaving the factory, which can be traced and calibrated. A calibration report containing complete data such as frequency response curve, sensitivity temperature characteristics, etc. is provided with the goods. Our technical support system includes:

Application Engineering Support: Free testing solution consultation provided

On site service: technical guidance in complex installation environments

Data analysis service: assist clients in interpreting test results

Customized development: response to special range or interface requirements