Aerospace Pressure Transducers

Description

The gage sensor utilizes a unique, highly accurate sense element that eliminates common failure points such as wire bonds, flexible diaphragms and oil-filled headers while maintaining the advantages of a fully welded and sealed stainless steel assembly. Gage-filtered reference ports or fully sealed housings are standard options. All amplifying and conditioning circuits are isolated from the pressure media and are protected from exposure to harmful gases and liquids in the environment.

Pressure measurement utilizes a balanced, fully active resistive bridge, with unique patented conditioning to provide a highly accurate low noise signal. Specialized design features allow the error band to remain flat throughout the entire operating temperature and pressure ranges. Effects of EMC, EMP and inadvertent misconnection are eliminated through simplified design and special protective circuit elements. Specialized tailoring of signals for balanced output, selectable input and output impedance, common mode voltage (non-amplified bridge), and time-constant response are simply configured.

Description

The absolute sensor utilizes a unique, highly accurate thin film media isolated sense element in a fully welded and sealed assembly. Measurement elements provide sensing without the need for an isolation diaphragm. A “can style” isolation flexure provides separation of the measuring and conditioning circuits from the pressure media. Internal components are protected from exposure to harmful gases and liquids in the environment through a hermetically sealed enclosure and connector.

Measurement of pressure occurs in a balanced, fully active resistive bridge, with conditioning through a unique electronic circuit to provide a highly accurate low noise signal. Immunity from external electrical effects and inadvertent misconnection is provided through simplified design and special protective circuit elements.

A patented signal-conditioning circuit provides highly precise performance throughout the entire operating temperature range. The accuracy and thermal error are the same at the hottest and coldest extremes as at room temperature. Both amplified and millivolt output options are available.

Units are available with a wide range of welded connectors. Pressure interfaces using standard G1/4, NPT, coned and others, as well as fully custom, are available. Body size is typically 1 inch, and overall weight less than 4 ounces.

Description

The differential sensor is available with several sensor technologies. For low- pressure ranges in clean air, a PRT sense element with gold or “protective coating” provides the differential reading. Higher-pressure units and those in fluid applications utilize either an oil-filled PRT system or a dual thin film sensor.

With any of the sense options, the measurement of pressure occurs in a balanced, fully active resistive bridge, with conditioning through a unique electronic circuit. Immunity from external electrical effects and inadvertent misconnection is provided through simplified design and special protective circuit elements.

A patented signal-conditioning circuit provides highly precise performance throughout the entire operating temperature range. The accuracy and thermal error are the same at the hottest and coldest extremes as at room temperature. Both amplified and millivolt output options are available.

Units are available with a wide range of welded connectors. Pressure interfaces using standard G1/4, NPT, coned and others, as well as fully custom, are available. Body size and shape is suited to the applications with options ranging from 1 inch round, rectangular or square.

Description

Extend differential pressure readings to applications where the maximum difference is a small fraction of the full line pressure. Maintain the robust survival capabilities even when high side or low side reaches the full extent of pressure up to proof. Where percent of differential reading is a small fraction of full scale, achieve significant accuracy even over the full limits of line pressure.

The measurement of pressure occurs in a balanced, fully active resistive bridge, with conditioning through a unique electronic circuit. Immunity from external electrical effects and inadvertent misconnection is provided through simplified design and special protective circuit elements.

A patented signal-conditioning circuit provides highly precise performance throughout the entire operating temperature range. The accuracy and thermal error are the same at the hottest and coldest extremes as at room temperature. Both amplified and millivolt output options are available.

Units are available with a wide range of welded connectors. Pressure interfaces using standard G1/4, NPT, coned and others, as well as fully custom, are available. Body size and shape is suited to the applications with options ranging from 1 inch round, rectangular or square.