Sensors and Electrodes
O2, H2, H2S, N2O, NO, pH, Redox, Temperature and more - microsensors are the foundation of our business.
We offer a wide selection of microsensors designed for high quality measurement based on non-destructive and real time measurement of analytes on a micro scale. Further advantages include high spatial resolution and low detection limits, including numerous customization and adaptations possibilities.
Select your sensor in the left side menu to learn more about possibilities and specification.
• Non-destructive measurements
Researchers have introduced Unisense microsensors into intact tissue, sediment, biofilm, cheese, salami and much more and performed measurements that left the study subjects unchanged.
• High spatial resolution
A microsensor measures the chemical environments at the scale of the sensor tip – often a few micrometers. This means that changes in the chemical gradient at micrometer scale can be detected, which allows for the study of complex and heterogeneous environments at an extreme detail.
• Fast response
The minute dimensions of the internal structures of the microsensor make the diffusion processes that govern the signal extremely fast. Some sensors can be made with a response time of less than 200 milliseconds.
• Low analyte consumption
Many sensors consume analyte in the detection process. Due to the extremely small membrane area (typically 0.3*10-7 cm2) it takes approximately 35 years to consume the oxygen dissolved in 1 cm3 water. This consumption is negligible.
• Low stirring sensitivity
Due to the extremely low analyte consumption, a microsensor can be made very insensitive to the velocity of the medium.
• No temperature hysteresis
The small tip size of microsensors allows for a very fast temperature equilibration. This means that there is no time lag in the sensor response to changes in temperature.
• High pressure resistance
Shear forces are extremely high at a small size scale, and the tip membrane of microsensors are unaffected by changes in hydrostatic pressure of up to several hundred bars