Calibration verification for optical particle analyzers

    公开(公告)号:US11385161B2

    公开(公告)日:2022-07-12

    申请号:US17290494

    申请日:2020-04-27

    Abstract: Provided are particle analyzers and related methods for verifying calibration status of the particle analyzer, including independently of the presence or absence of particles. The method and analyzers include use of distinct and non-interfering time frequency domains: a middle frequency time domain and a low frequency time domain, and optionally a high frequency time domain. The high frequency time domain generates a laser facet drive current frequency modulation to prevent the laser facet from spatial-mode hopping. The middle frequency time domain is for particle detection. The low frequency time domain is for calibration status, including laser-pulse-light self-diagnostics, for the health or calibration status of the analyzer. By carefully selecting the frequency time domain ranges, there is non-interference, with the ability to self-diagnose the instrument that is particle-independent.

    Particle detectors with remote alarm monitoring and control

    公开(公告)号:US11250684B2

    公开(公告)日:2022-02-15

    申请号:US17224599

    申请日:2021-04-07

    Abstract: The invention generally provides devices and methods for particle detection for minimizing human-caused contamination in manufacturing environments requiring low levels of microbes, such as cleanroom environments for electronics manufacturing and aseptic environments for manufacturing pharmaceutical and biological products, such as sterile medicinal products. Methods of the invention may incorporate wirelessly transmitting an alarm signal from a particle detector to a remote device, replicating a graphical user interface of the particle detector on an electronic display of the remote device, and passing one or more user instructions from the remote device to the particle detector via the replicate graphical interface of the remote device.

    Calibration verification for optical particle analyzers

    公开(公告)号:US11181455B2

    公开(公告)日:2021-11-23

    申请号:US16678968

    申请日:2019-11-08

    Abstract: Provided are particle analyzers and related methods for verifying calibration status of the particle analyzer. The method includes the steps of providing an optical particle analyzer and modulating a power applied to a source of EMR. The method includes the steps of, in response to the modulating step, inducing a detector signal waveform and analyzing the detector signal waveform to determine a value of at least one diagnostic parameter associated with one or more of the source of EMR, an optical assembly, a chamber, a detector, and an optical collection system of the optical particle analyzer. The method includes the step of determining a calibration status of the optical particle analyzer based on the one or more determined values of the at least one diagnostic parameter.

    Particle detectors with remote alarm monitoring and control

    公开(公告)号:US10997845B2

    公开(公告)日:2021-05-04

    申请号:US17063779

    申请日:2020-10-06

    Abstract: The invention generally provides devices and methods for particle detection for minimizing human-caused contamination in manufacturing environments requiring low levels of microbes, such as cleanroom environments for electronics manufacturing and aseptic environments for manufacturing pharmaceutical and biological products, such as sterile medicinal products. Methods of the invention may incorporate wirelessly transmitting an alarm signal from a particle detector to a remote device, replicating a graphical user interface of the particle detector on an electronic display of the remote device, and passing one or more user instructions from the remote device to the particle detector via the replicate graphical interface of the remote device.

    User access-restrictive systems and methods for operating particle sampling devices

    公开(公告)号:US12231890B2

    公开(公告)日:2025-02-18

    申请号:US18065169

    申请日:2022-12-13

    Abstract: Systems, methods, devices and software for operating particle sampling devices in a user-restrictive manner include a tag and a particle sampling device. The device includes a tag reader and a processor in communication with the tag reader. The processor: receives device configuration data and reads operational and/or user data from the tag having that data encoded thereon. Based on the data read from the tag, the processor may either grant or deny access to a user for performing device operations. Alternatively, for a headless particle sampling device configured for minimal user interaction during operation, the device is removably attached to a supporting structure proximate the tag positioned in or on the supporting structure. In the headless configuration, the processor reads device configuration parameters including network communication information from the tag following device power up. Embodiments of the disclosure facilitate various efficiency improvements for manufacturing operations reliant on particle sampling devices.

    User access-restrictive systems and methods for operating particle sampling devices

    公开(公告)号:US11576045B2

    公开(公告)日:2023-02-07

    申请号:US16987682

    申请日:2020-08-07

    Abstract: Systems, methods, devices and software for operating particle sampling devices in a user-restrictive manner include a tag and a particle sampling device. The device includes a tag reader and a processor in communication with the tag reader. The processor: receives device configuration data and reads operational and/or user data from the tag having that data encoded thereon. Based on the data read from the tag, the processor may either grant or deny access to a user for performing device operations. Alternatively, for a headless particle sampling device configured for minimal user interaction during operation, the device is removably attached to a supporting structure proximate the tag positioned in or on the supporting structure. In the headless configuration, the processor reads device configuration parameters including network communication information from the tag following device power up. Embodiments of the disclosure facilitate various efficiency improvements for manufacturing operations reliant on particle sampling devices.

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