It gives graphical information on the near surface hydration distribution and the micro-topography of skin and other tissues (textiles, plants, etc.).
The measurement is based on capacitance imaging. The sensor measures the penetration of the electromagnetic field. Conductive material e.g. water will reflect the signal making the resulting pixel darker while non-conductive material will make the signal go farther inside and the resulting pixel will be lighter on a scale of 255 grey levels.
Rather than absolute moisture figures ,the MoistureMap MM 100 indicates the distribution of hydration on the skin surface.
On the 1.8 x 1.28 mm silicon chip of the sensor, over 90,000 capacitors are located every 50 µm. The sensor is covered with a silicon oxide layer for protection.
Where to use:
Wherever skin moisture distribution plays a role the MoistureMap MM 100 is a very impressive imaging addition to the pure quantitative measurements. In literature the use of such equipment is known for efficacy testing of cosmetics & pharmaceuticals & surfactants, skin photo-aging and illustration of skin lesions and scars. Capacitance imaging has also been used to determine to map the hair moisture level.
MM100 special image analysis software evaluates the images in different ways:
With our MoistureMap MM 100 in vitro Adapter (optional accessory), the probe can be mounted in the stand with the sensor pointing upwards. In addition different donor chambers are included (0.5 and 0.8 mm outlet) which can be put on the sensor surface and are retained in the adapter on top of the sensor. There is a matching lid to minimize evaporation of volatile solvents from the donor chambers. A video can show the kinetic effects of the distribution of hydration over time.