Method and apparatus for integrating chemical and environmental sensors into an air purification filter through a reusable sensor port

摘要

A sensor device is disclosed for providing end of service life indication for an air purification filter. The sensor device has a cylindrical housing for insertion into a sorbent bed of a filter, and can be removed from the bed and reused at the end of the filter service. One or more sensors inside the housing are configured to sense physical/chemical characteristics of air passing through the sorbent bed, and to provide associated data to a sensor conditioning board within the housing. The sensor conditioning board processes the received data and conditions the data as desired. The housing is receivable in a cavity formed in the filter bed. A receiving structure receives the housing therein. Data from the one or more sensors can be used to calculate predicted end of service life of the filter. Other embodiments are described and claimed.

主权项

1. A sensor device for end of service life indication, comprising:
a housing having an outer surface, a longitudinal cavity, and at least one opening along the outer surface, wherein the housing is removably insertable into a cavity in a sorbent bed of a filter element; a sensor for detection of one or more chemicals, the sensor positioned within the longitudinal cavity adjacent the at least one opening; a sensor conditioning board for processing sensor data from the sensor; a power supply for powering the sensor conditioning board; and a receiving structure configured to be positioned in the cavity in the sorbent bed, wherein the receiving structure extends the length of the sorbent bed of the filter element, the receiving structure receiving a portion of the housing therein, wherein the receiving structure includes at least one opening extending from an inside of the receiving structure to an outside of the receiving structure, the opening configured to allow vapor flow from said sorbent bed to the at least one opening of the housing when the housing is placed within the receiving structure.