Sensors

Highly accurate beta-ray, x-ray, and infrared sensors are available for a variety of measurement applications. These are non-contact sensors that can measure objects without damaging them.

Measuring range:
- Beta-ray sensor (0 to 5000 g/m2 with aluminum)
- X-ray sensor (0 to 1,200 g/m2 with aluminum)
- Infrared sensor (0 to 2000 μm with PP)

Beta-ray Sensors

Beta-ray sensors irradiate objects to measure their thickness (basis weight), calculating this based on the attenuation of the radiation as it passes through the object. Beta-ray sensors can measure any object provided the thickness is within the specified measuring range.

• Beta ray sources for measuring objects:
  147Pm (promethium), 85Kr (krypton), and 90Sr (strontium) sources are available and are selected depending on the object that is to be measured.
• High measurement accuracy
  Beta-ray sensors measure both the object and the surrounding air layer. The sensor compensates for this by using an air purge mechanism to keep the air layer at a constant temperature and density, thereby minimizing its impact on measurement accuracy. It also contains an automatic compensation function for the decay of the light source and a calculation function to reduce radiation noise. These and other functions ensure stable and highly accurate measurement.

X-ray Sensors

X-ray sensors irradiate objects to measure their thickness (basis weight), calculating this based on the attenuation of the x-ray as it passes through the object. The sensitivity of an X-ray sensor varies according to the atomic weight of the object that is measured. As it is particularly sensitive to metallic elements, an x-ray sensor is often used to measure IT-related materials such as ceramic sheets (like MLCC) and battery electrodes.

• Unique X-ray tube with stability and higher output
  The tube employs an X-ray sensor with a reflective triode structure that achieves outstanding stability and high output.
• High accuracy
  As with the beta-ray sensor, the X-ray sensor has a compensation function that maintains the air layer at a constant temperature to minimize its impact on measurement accuracy.

Infrared Sensors

Infrared sensors irradiate objects to measure their thickness (basis weight), calculating this based on the attenuation of the infrared light as it passes through the object. They are sensitive to CH groups and can be used with many different types of films and sheets.

• No replacement necessary
  The light source uses a long-life heating wire that rarely, if ever, will require replacement. Highly sensitive wavelength filters are available for measuring objects of varying thicknesses.
• High accuracy
  By using various kinds of wavelength filters and filters that are sensitive to thickness, changes in haze levels, color, and ambient temperature can be minimized to achieve stable and highly accurate measurements.