ヴァイサラ List of Products and Services

In 1973, Vaisala developed the polymer thin-film capacitive humidity sensor HUMICAP. Since then, Vaisala has grown into a leading manufacturer in the relative humidity measurement market, and the polymer thin-film capacitive humidity sensor has evolved from a new technology of a single company to the global standard in the industry.

The Vaisala CARBOCAP® carbon dioxide (CO2) sensor, released in 1997, employs innovative technology. It features a silicon-based variable filter using Fabry-Perot interference (FPI) in a single-source dual-wavelength comparison infrared non-dispersive method. Boasting high reliability and stability, this sensor has been providing accurate CO2 measurements across a wide range of fields and applications, from building automation and safety to life sciences and environmental research, for over 15 years.

In 1997, Vaisala launched a new type of dew point sensor called DRYCAP, based on polymer thin film technology. Since then, the applications of the DRYCAP series have expanded to a very wide range, including drying processes, compressed air, and dry chambers. DRYCAP sensors are particularly valued for their reliable performance in high-temperature and very dry environments.

The Vaisala BAROCAP, released in 1985, is a silicon-based micromechanical pressure sensor that provides reliable performance for a wide range of applications, from weather observation to industrial measurement. The BAROCAP sensor combines two effective technologies: single-crystal silicon material and capacitive measurement, featuring high accuracy and long-term stability, along with low hysteresis. You can find more detailed technical explanations through the related links below.

The PEROXCAP measurement uses two Vaisala HUMICAP sensors. One has a catalytic layer, and the other does not. HUMICAP is a polymer film capacitive sensor that has a polymer thin film sandwiched between two electrodes on an alumina substrate. In the PEROXCAP measurement, the concentration of hydrogen peroxide vapor is indicated by the difference in the measurement values of the two sensors.

**Features of HUMICAP in Oil Moisture Measurement** ▪ Fast: Real-time online detection of moisture in oil without the need for sampling ▪ Reliability: Provides accurate ratios up to the saturation point of water, considering temperature changes and oil aging under various fluctuating conditions ▪ High Stability: Excellent durability against pressure and temperature ▪ Easy Installation: No process shutdown required due to the ball valve ▪ Predictable Maintenance Tasks: Enables quick trend analysis

The basic idea of the modular approach is that modules and components can be flexibly combined into a system. Modular parts are designed to be used both individually and in connection with other converters. Components can be separated and recombined, providing flexibility and diversity in usage. In modular design, customization can be done according to needs without significant effort for changes. In this way, the modular approach reduces the complexity of the system. While modularity is not a new concept, it has become increasingly prevalent in various fields such as automobiles, computers, furniture, plumbing systems, and architecture. Modularization has also been gaining traction in industrial measurement systems. Interchangeable measurement probes, converters, and software offer significant advantages for various measurement applications.