The practical application of the serial produced piezoelectric pulsed and acoustic pressure sensors is considered. The sensors of the new generation on the base of the promising piezomaterials developed by the Research Institute of Physical Measurements (Penza) are presented.

1. The unificated series of the miniature sensors for measuring the dynamic pressures ranging 0,05 to 100 kgf/cm² at the level of the static pressures within the range 0,5 to 2500 kgf/cm² over the temperature range - 60 to 900^oC without forced cooling. The weight (with the cable) is not more than 40g.

2. Piezofilm - based sensors for measuring the dynamic and pulse pressures up to 250 - 300 kgf/cm² within the frequency range 2 to 10000 Hz over the temperature range -60 to 250^oC. The weight is not more than 40g.

The major advantage of sensor design over the conventional threaded sensors is its mounting does not change the measurement object configuration and require the special mounting seat. It is fitted on the different-diameter pipelines by means of the metal circlip.

3. Miniature sensors based on the bulk-effect piezoelectric elements for measuring the dynamic pressures up to 250 kgf/cm² within the frequency range 2 to 150000 Hz over the temperature range -196 to 200^oC. The major advantage of sensors is their possibility to be mounted flush with surface of the measurement object (e.g. on the turbine blades) without destroying measured flow.

4. The sensors mounted into the spark plug based on both the piezoelectric chips and the piezoelectric ceramics. They are producing the spark simultaneously with measurement of dynamic pressure in the engine combustion chamber up to 250 kgf/cm² over the frequency range up to 10000 Hz at the temperatures up to 300^oC. The weight of the sensors (with the cable) is not more than 35g.

5. The unificated series of sensors for measuring the acoustic pressures ranging 85 to 185 dB at the temperatures up to 300^oC (short - term up to 1000^oC without forced cooling).

The results of the comparative analysis of the technical level between newly developed piezoelectric devices and best foreign analogues of the firms - PCB, Kistler, Vibro-meter, AVL etc. are presented.

The most challenging problems are stated and the ways of their realisation are presented what should result in development of the sensors conforming to the level of the best foreign samples and even outperforming them by some parameters (temperature range, noise immunity, reliability).

The developed piezoelectric sensors will find the most wide use in the rocket-space technology, chemical and oil-process industries, fuel-energetic complex including APS, in the equipment of different vehicles.

E.A.Mokrov, Director-General Designer, Academician; Scientific interests area is the instruments elaborations for Rocket-Space Engineering.