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Sensor Nobleman successfully manufactured a hammering-type pressure sensor using a nano-film pressure sensor core.

2020-08-19

  After lasting three days, the world’s largest oil and petrochemical exhibition—the China International Petroleum & Petrochemical Technology & Equipment Exhibition—came to a successful close on the afternoon of March 31. The exhibition attracted hundreds of well-known enterprises from both home and abroad, and was covered by dozens of domestic and international media outlets, including CCTV and the People’s Daily. With the advancement of electronic, information, and network technologies, petroleum and petrochemical equipment is becoming increasingly intelligent, and these devices now make extensive use of various types of sensor products.
  At this exhibition, numerous companies showcased HammerUniony/WingUnion pressure sensors/transmitters. These hammer-type pressure sensors/transmitters find applications in processes and equipment such as oil and gas drilling, mud pumps, integrated mud logging, fracturing, cementing, grouting, riser systems, wellhead measurement, new well development and production, acidizing, service operations, and cement trucks.
  Currently, both domestic and international pressure sensors of the hammer-type strain gauge type primarily rely on the strain-gauge bonding technique. In this method, strain-resistance elements are adhered to the back side of the sensor’s force-bearing base using organic adhesives. When the base is subjected to force, the elastic body with the bonded strain gauges deforms accordingly. This deformation is transmitted to the strain gauges, causing them to generate an electrical output and thus enabling pressure measurement. Obviously, the inherent drawbacks of this bonded-strain-gauge sensor remain evident in such products—for instance, temperature-induced effects on the adhesive can cause the sensor’s hysteresis error to exceed acceptable levels, and its stability may deteriorate after exposure to intense vibration or impact. Moreover, when these sensors are used in harsh environments characterized by high temperatures, significant vibration and impact, and highly corrosive or viscous media, their service life is substantially shortened.
  To address the aforementioned issues, Sensor Nobleman Company has replaced strain-gauge sensor cores with high-performance nanomembrane pressure sensor cores, successfully developing a hammer-type rotary union pressure sensor with outstanding performance. This sensor is particularly well-suited for precise pressure measurement in viscous media commonly found in the oil and gas industry—such as crude oil, mud, concrete slurries, and other similar substances. The product features high accuracy, excellent reliability, and the ability to withstand intense impacts and vibrations. Its rotary union design allows direct connection to high-pressure pipelines for accurate medium-pressure measurement, making it easy to install on-site. Moreover, the sensor complies with the HART communication protocol requirements, making it a new-generation rotary union pressure sensor/transmitter specifically designed for the oil and gas industry.
  The schematic diagram of this hammering-type nanomembrane pressure sensor product is shown in Figure 1 below.



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Figure 1: External view of the hammer-driven nanomembrane pressure sensor product

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