Description

Analatom's Corrosion Health Monitoring System (CHMS) consists of a network of AN110 Data Acquisition (DAQ) nodes. The AN110 DAQ unit connects to eight uLPR and/or time of wetness (TOW) sensors and a humidity/temperature sensor. The unit is battery powered, but can also be operated using external power. Linear Polarization Resistance (LPR), resistance for TOW, temperature and humidity is measured and stored locally on the unit. Data can be retrieved by either using a wired interface such as RS232 and RS485 or wirelessly using the ZigBee protocol. The CHMS software converts LPR and resistance data into a corrosion rate and TOW value.

Each uLPR TOW sensor is made of two electrodes that are interdigitated at 150um and 300um spacings. The uLPR sensor is fabricated from shim stock of the source/sample material that is to be monitored. The shim is prepared using photolithographic techniques and electro chemical etching (ECM). It adhered to a layer of Kapton to produce a highly ductile and mechanically robust micro sensor that is sensitive to corrosion. Each sensor connects to one of the AN110 eight channels. Specifications for the uLPR and the TOW sensors are available.

Available Materials