PNEUMATIC ACTUATOR ASSEMBLY FOR REDUCED DEAD LEG

    公开(公告)号:US20250116349A1

    公开(公告)日:2025-04-10

    申请号:US18901774

    申请日:2024-09-30

    Abstract: The disclosure is directed to pneumatic actuator assemblies for reduced dead leg. In one approach, an assembly may include a valve body, and a first actuator and a second actuator each coupled to the valve body by a bonnet assembly. The bonnet assembly may include a bonnet body having a first end opposite a second end, wherein the first end is connected with the valve body, and a nut threadedly connected to the second end of the bonnet body. The bonnet assembly may further include an actuator bonnet, wherein the nut partially surrounds the actuator bonnet, and wherein the actuator bonnet is rotatable about a lengthwise axis extending through a center of a stem of a piston.

    NO-REF-SIGNAL SLOPE SPECTROSCOPIC MEASUREMENT

    公开(公告)号:US20230375407A1

    公开(公告)日:2023-11-23

    申请号:US18198513

    申请日:2023-05-17

    CPC classification number: G01J3/42 G01N21/3103 G01J3/10 G01N21/255

    Abstract: A method includes determining whether a variation in probe radiation intensity meets a stability criterion; directing the probe radiation through a probe, when the probe is disposed at a first position, defining a first path length L1 of the probe radiation through the fluid sample; measuring a transmitted intensity I1 of the probe radiation after passing through the fluid sample when the probe is disposed at the first position; directing the probe radiation through the probe when the probe is disposed at a second position, defining a second path length L2 of the probe radiation through the fluid sample; measuring a transmitted intensity I2 of the probe radiation after passing through the fluid sample when the probe is disposed at the second position; and determining a concentration C of a material in the fluid sample based upon L1, I1, L2, and I2, when the stability criterion is met.

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