Combustion pressure sensors that concentrate the technology of the Citizen Group
The combustion sensors concentrate the Citizen Group’s piezoelectric crystal, ceramic and metalworking technology along with the technology to mass produce compact precision components. In addition to the conventional development applications, they can be installed in the internal combustion engines of mass production vehicles to improve compliance with environmental regulations and fuel economy.
In-house development of “langasite-type crystal” piezoelectric elements
Langasite-type crystals, which are able to demonstrate their piezoelectric element performance even in high-temperature environments, are adopted. Drawing on our experience as a crystal manufacturer, we handle everything from growing crystals to processing them in-house.
Integrated production using equipment and technologies built up in the Citizen Group
We apply the technology for mass production of small precision parts, in which we can boast accuracy in micron units, built up in watch manufacture. Along with that we have established in-house manufacture/integrated production of key components including elements.
Measurement of knocking also possible
High pressure-resistant and high-performance sensors are realized by adopting crystals with high heat resistance and applying watch manufacturing technology. They are of course used for measuring knocking, and also for applications including ignition timing control.
Installation in mass production vehicles achieved!!
Using our unique sensor structure ensures high durability. Their installation in mass production vehicles has been achieved by establishing mass production technology for them.Measuring the pressure inside constantly changing cylinders helps realize the optimum combustion conditions.
Installable in High performance Vehicles
Due to their high durability and performance, these sensors can be used in development (test bench) situations such as for High power engine and supercharged engines, and for installation in actual vehicles. They maximize engine performance.