A support (17) for an electronic module (7) for generating a signal, this module being intended to be inserted into a sensor (1) for measuring the pressure of the gases contained in a vehicle cylinder, the support (17) including a portion (19) for receiving the electronic module (7) and elements (25) for retaining the electronic module (7) on the receiving portion (19), the electronic module (7) including a body (8), the receiving portion (19) including elements (31a, 31b) for attaching the retaining elements (25), and the retaining elements (25) being configured to pivot between an open position (PO) in which the electronic module (7) can be placed on the receiving portion (19) and a closed position in which the retaining elements (25) are attached to the attachment elements (31a, 31b) in order to retain the body (8) of the electronic module (7) on the support (17).

A support (17) for an electronic module (7) for generating a signal, this module being intended to be inserted into a sensor (1) for measuring the pressure of the gases contained in a vehicle cylinder, the support (17) including a portion (19) for receiving the electronic module (7) and elements (25) for retaining the electronic module (7) on the receiving portion (19), the electronic module (7) including a body (8), the receiving portion (19) including elements (31a, 31b) for attaching the retaining elements (25), and the retaining elements (25) being configured to pivot between an open position (PO) in which the electronic module (7) can be placed on the receiving portion (19) and a closed position in which the retaining elements (25) are attached to the attachment elements (31a, 31b) in order to retain the body (8) of the electronic module (7) on the support (17).

A sensor connector compatible with various sensor unit repertoires and capable of improving production efficiency is provided. The sensor connector includes terminal modules to be inserted into a module inserted portion, and commonized pogo pin type terminal module is brought into contact with a connection terminal via slide contact segments capable of sliding relative to the connection terminal exposed to a region closer to the module inserted portion. Thus, the sensor connector can be compatible with the sensor unit 1 having various repertoires by changing, for example, the arrangement and the number of poles of the module inserted portions of the connector housing.

A sensor connector compatible with various sensor unit repertoires and capable of improving production efficiency is provided. The sensor connector includes terminal modules to be inserted into a module inserted portion, and commonized pogo pin type terminal module is brought into contact with a connection terminal via slide contact segments capable of sliding relative to the connection terminal exposed to a region closer to the module inserted portion. Thus, the sensor connector can be compatible with the sensor unit 1 having various repertoires by changing, for example, the arrangement and the number of poles of the module inserted portions of the connector housing.

A pressure sensor is provided and includes housings that are formed to have a tubular shape; a pressure measurement member that is accommodated inside the housing and includes a piezoelectric substance; a diaphragm that has a flexible plate-shaped part fixed to a tip side of the housings and a transfer part protruding on an axis to transfer a load to the pressure measurement member; and a heat shielding plate that is held by the housings such that the diaphragm is covered, comes into contact with the diaphragm in a central region corresponding to the transfer part, and defines an annular void between the heat shielding plate and the diaphragm in a region other than the central region.

A pressure sensor is provided and includes housings that are formed to have a tubular shape; a pressure measurement member that is accommodated inside the housing and includes a piezoelectric substance; a diaphragm that has a flexible plate-shaped part fixed to a tip side of the housings and a transfer part protruding on an axis to transfer a load to the pressure measurement member; and a heat shielding plate that is held by the housings such that the diaphragm is covered, comes into contact with the diaphragm in a central region corresponding to the transfer part, and defines an annular void between the heat shielding plate and the diaphragm in a region other than the central region.

The objective of the present invention is to remove drift of a piezoelectric element and thereby obtain a highly precise pressure detection signal by means of a simple configuration. A pressure detection signal processing device 200 includes: a charge amplifier 210 that accumulates electric charge produced by a piezoelectric element 35 in response to a received pressure and outputs a corresponding voltage signal; drift component extraction units 230 and 240 that extract a drift component of the piezoelectric element 35 by performing differential processing on the voltage signal; and a drift correction unit 250 that generates, based on the extracted drift component, a correction signal for removing the drift component and feeds the correction signal back to an input side of the charge amplifier.

A dynamic five-hole probe includes a pressure sensing part, a pressure measuring hole transition section, a pressure acquisition section, dynamic pressure sensors and flexible wall pressure buffering tubes, the pressure sensing part being provided with pressure measuring holes to sense three dimensional dynamic pressure components of an airflow; the pressure measuring hole transition section transits from an inlet end surface five-hole structure into an outlet end surface five-hole structure; the pressure acquisition section has therein a centrally symmetric pressure measuring hole structure; pressure sensor mounting holes are in communication with the five pressure measuring holes; each of the dynamic pressure sensors is mounted in a corresponding one of the sensor mounting holes to measure a dynamic pressure of the airflow. The pressure sensing part may have a diameter of 3 mm or less.

A piezoelectric transducer includes a transducer unit disposed within a watertight and gas-tight housing and having at least one piezoelectric element contacted by at least two electrodes. A signal lead-through is electrically connected to the electrodes and configured conducting polarization charges as signals from the piezoelectric element through the housing to an environment outside of the housing. A signal cable arranged outside of the housing includes at least two signal conductors. The signal lead-through includes a support element having at least two conducting paths in electrical contact with one of the signal conductors.

Techniques are disclosed relating to calibrating sensors configured to measure both pressure and acceleration. In various embodiments, a system detects a first voltage produce by a first piezoelectric material in a hydrophone when the hydrophone is exposed to an acceleration and detects a second voltage produced by a second piezoelectric material in the hydrophone when the hydrophone is exposed to the acceleration. The system, in some embodiments, compares the first voltage and the second voltage. Based on the comparing of the first and second voltages, in some embodiments, the system determines a resistance for a variable resistor coupled to one of the first and second piezoelectric materials.