Acoustic Mass Sensor

摘要

A mass sensor has a common RF input, a set of mass sensor cells, and a common hold input. Each of the mass sensor cells has a local input node coupled to the common RF input, a local output node, a mass-dependent RF filter that includes an electroacoustic resonator having receptors immobilized on a surface thereof, an RF detector, and a hold circuit having a local hold input. The RF filter, the RF detector and the hold circuit are connected in series between the local input node and the local output node. The common hold input is coupled to the local hold inputs of the hold circuits of at least a subset of the mass sensor cells.

主权项

1. A mass sensor, comprising:
a common RF input; a set of mass sensor cells, each of the mass sensor cells comprising:
a local input node coupled to the common RF input;a local output node;an RF filter comprising an electroacoustic resonator having receptors immobilized on a surface thereof,an RF detector, anda hold circuit comprising a local hold input,in which the RF filter, the RF detector and the hold circuit are connected in series between the local input node and the local output node; a common hold input, the common hold input coupled to the local hold inputs of the hold circuits of at least a subset of the mass sensor cells.