公开(公告)号：US20210055264A1

公开(公告)日：2021-02-25

申请号：US16982854

申请日：2019-05-06

Applicant: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Nizar JABER ,  Mohammad Ibrahim YOUNIS

IPC: G01N29/036 ,  G01N29/32

Abstract: A vapor and/or gas concentration and temperature sensor includes a resonating structure having a first side with a functionalized surface and a second side opposite the first side, a first resonant frequency of a first vibration mode, and a second resonating frequency of a second vibration mode. Drive and sensing electrodes face the second side of the resonating structure. A direct current bias source is coupled to the resonating structure. A first AC voltage source provides the resonating structure with a first voltage having a frequency corresponding to the first resonant frequency. A second AC voltage source provides the resonating structure with a second voltage having a frequency corresponding to the second resonant frequency. A read-out circuit determines a vapor and/or gas concentration based on a difference between the frequency of the first voltage and a first read-out frequency and determines a temperature based on a difference between the frequency of the second voltage and a second read-out frequency.

公开(公告)号：US20180316353A1

公开(公告)日：2018-11-01

申请号：US15769532

申请日：2016-12-08

Applicant: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Md Abdullah AI HAFIZ ,  Lakshmoji KOSURU ,  Mohammad Ibrahim YOUNIS

IPC: H03K19/02

CPC classification number: H03K19/02 ,  H03K19/20 ,  H03K19/21

Abstract: Various examples of reprogrammable universal logic devices are provided. In one example, the device can include a tunable AC input to an oscillator/resonator; a first logic input and a second logic input to the oscillator/resonator, the first and second logic inputs provided by separate DC voltage sources (VA, VB), each of the first and second logic inputs including an on/off switch (A, B); and the oscillator/resonator including an output terminal. The tunable oscillator/resonator can be a MEMS/NEMS resonator. Switching of one or both of the first or second logic inputs on or off in association with the tuning of the AC input can provide logic gate operation. The device can easily be extended to a 3-bit or n-bit device by providing additional logic inputs. Binary comparators and encoders can be implemented using a plurality of oscillators/resonators.