ASTM F2070 - 00(2011)

    Standard Specification for Transducers, Pressure and Differential, Pressure, Electrical and Fiber-Optic

    Active Standard ASTM F2070 | Developed by Subcommittee: F25.10

    Book of Standards Volume: 01.07


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    Abstract

    This specification covers the requirements for pressure and differential pressure transducers for general applications. Pressure transducers typically consist of a sensing element that is in contact with the process medium and a transduction element that modifies the signal from the sensing element to produce an electrical or optical output. Some parts of the transducer may be hermetically sealed if those parts are sensitive to and may be exposed to moisture. Pressure connections must be threaded with appropriate fittings to connect the transducer to standard pipe fittings or to other appropriate leak-proof fittings. The output cable must be securely fastened to the body of the transducer. Most common sensing elements are diaphragms, bellows, capsules, Bourdon tubes, and piezoelectric crystals. The function of the sensing element is to produce a measurable response to applied pressure or vacuum. The response may be sensed directly on the element or a separate sensor may be used to detect element response. The following are the different types of electrical pressure transducers: differential transformed transducer, potentiometric transducer, strain gage transducer, variable reluctance transducer, and piezoelectric transducer. Different kinds of fiber-optic pressure transducers shall be discussed: Fabry-Perot interferometer, Bragg grating interferometer, quartz resonator, and micromachined membrane/diaphragm deflection. The following physical properties of transducers shall be determined: enclosure, transducer mounting, external configuration, standard electrical connection, pressure connections, damping, size, and weight. Different tests shall be conducted in order to determine the service life and overall performance of the transducers.

    This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

    1. Scope

    1.1 This specification covers the requirements for pressure and differential pressure transducers for general applications.

    1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. Where information is to be specified, it shall be stated in SI units.

    1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices, and determine the applicability of regulatory limitations prior to use.

    1.4 Special requirements for naval shipboard applications are included in Supplementary Requirements S1, S2, and S3.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ISO Standard

    ISO9001 Quality System--Model for Quality Assurance in Design/Development, Production, Installation, and Servicing Available from International Organization for Standardization (ISO), 1 rue de Varemb, Case postale 56, CH-1211, Geneva 20, Switzerland.

    ASTM Standards

    D3951 Practice for Commercial Packaging

    ANSI/ISA Standards

    ANSI/ISAS37.1 Electrical Transducer Nomenclature and Terminology Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036.


    ICS Code

    ICS Number Code 17.100 (Measurement of force, weight and pressure)

    UNSPSC Code

    UNSPSC Code


    DOI: 10.1520/F2070-00R11

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