April 2023 issue

Articles

  1. The history and future prospects of Azbil’s MEMS technology
  2. Upgrading a sapphire-based capacitance manometer for reduced size and enhanced anti-deposition characteristics
  3. A differential pressure sensor with ultra-overpressure resistance and an integrated overload protection system utilizing MEMS technology
  4. Design and application study of an oil-free high-sensitivity pressure sensor
  5. Improving mass flow controller usability
  6. Sensor packaging technology maximizes MEMS sensor capabilities
  7. New cleanroom design concepts for bringing original MEMS sensors to market efficiently

Abstracts

1. Cybersecurity measures for the savic-net FX/G5 building management systems
Kengo Kuroyanagi
To protect each component of its building air-conditioning systems, Azbil has been using measures such as public key cryptography to prevent tampering with programs, and firewalls to foil attacks through the network. In order to further tighten security, we have now implemented functionality that prevents malicious attackers from running unauthorized programs on the component equipment of the building air conditioning system (programs that are not on a white list of allowed executable files) and that warns operators with an alarm when an unauthorized access attempt is detected.
2. Air conditioning zone segmentation technology to meet individual comfort needs
Teruyoshi Haba, Jun Mizutaka, Taro Inami, Takaharu Saegusa
To subdivide air conditioning control into diffuser units covering from 6² to 12², we developed diffuser dampers with a mechanism to adjust airflow volume, along with a controller to modulate the dampers. We also implemented a control algorithm to resolve air interference between diffusers arising from the subdivision into air diffuser units. These new technological developments were applied in the diffuser’s variable air volume control as the commercially available cell-based air conditioning system; Nexfort damper for diffuser. After the control algorithm was verified in simulations, we evaluated its effectiveness in an environmental laboratory based on the Predicted Mean Vote (PMV) index.
3. Using a cloud MES to build IT infrastructure at production sites and promote production DX
Yorihisa Tamaoki
In the manufacturing industry, since information systems are often installed for individual factories and production lines, it is difficult to utilize production information for overall production optimization. A cloud based manufacturing execution system can collectively manage multiple production sites and collectively handle production information that is common to multiple sites. This allows the production-related knowledge of individuals to be combined with the diverse opinions and ideas of other members of the organization, strengthens manufacturing based on a common data foundation rather than KKD (in Japanese, kan ‘intuition’, keiken ‘experience’, and "dokyō ‘courage’), and promotes digital transformation (DX).
4. Considerations in the development of Pharmanage Ⅴ, a MES for pharmaceuticals that facilitates systematization of the user’s manufacturing processes
Tomonori Someya, Natsumi Matsui, Hidefusa Koyama
In recent years the rapid pace of new drug development has spurred demand for a manufacturing execution system (MES) for pharmaceutical manufacturing that is adaptable to manufacturing processes in order to ensure prompt and stable supply to the market. Therefore, we have developed a new MES for pharmaceuticals, Pharmanage V, which has a mechanism for adapting flexibly to the user’s manufacturing processes, facilitating systematization.

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