What are the advantages of the microLGD compared to Solid State Sensors (MOS) ?
No cross-sensitivity, no influence from environmental parameters: Solid state sensors are sensitive to humidity and generally have poor selectivity for toxic gases. Also, variations in the oxygen content lead to unreliable readings. Exposure to high gas concentrations can lead to irreversible changes to the 0-gas reading, as well as to the sensitivity. On the contrary, cross-sensitivity to other gases, humidity or oxygen is virtually zero for the microLGD if the bands from the absorption fine structure are carefully chosen. There is no direct contact to the gas to be measured. Low power consumption: A solid state sensor needs to be continuously at high temperature to be operational, which leads to significant power consumption. In applications where this is an issue, e.g. portable instruments, the microLGD has the advantage of low power consumption. Functional Safety: Please refer to the section on electrochemical sensors. Solid state sensors cannot comply with the European norm IEC 61
