[go: up one dir, main page]

Ghoor et al., 2017 - Google Patents

High-resolution capacitance-frequency converter for biosensor applications

Ghoor et al., 2017

Document ID
3786450195323376600
Author
Ghoor I
Bezuidenhout P
Joubert T
Publication year
Publication venue
2017 IEEE AFRICON

External Links

Snippet

This paper presents the design of a low-complexity, linear and sub-pF CMOS capacitance- frequency converter for reading out capacitive bacterial bio/sensors in an attempt to create a widespread bio/sensor readout module. The significant design objectives included a high …
Continue reading at ieeexplore.ieee.org (other versions)

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/24—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance
    • G01D5/241—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance by relative movement of capacitor electrodes
    • G01D5/2412—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance by relative movement of capacitor electrodes by varying overlap
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/24—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance
    • G01D5/2405—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance by varying dielectric
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
    • G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
    • G01P15/125—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by capacitive pick-up
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING; COUNTING
    • G06F—ELECTRICAL DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterized by the transducing means

Similar Documents

Publication Publication Date Title
CN103399201B (en) Universal detection chip system for weak signals of sensor
George et al. Analysis of the switched-capacitor dual-slope capacitance-to-digital converter
CN109669054B (en) A High Precision Fully Differential Capacitance-Voltage Conversion Circuit System
CN101281220A (en) Capacitance detection circuit and its capacitive sensor interface circuit chip
CN104049109B (en) A MEMS acceleration sensor servo readout circuit
Georgakopoulou et al. A capacitive-to-digital converter with automatic range adaptation for readout instrumentation
CN114964318B (en) An asynchronous capacitance sensor interface circuit with self-calibration function
Sheu et al. A capacitance-ratio-modulated current front-end circuit with pulsewidth modulation output for a capacitive sensor interface
TWI492133B (en) Capacitor sensing circuit
CN105652099B (en) A kind of micro- capacitance difference detection method based on switching circuit
Haider et al. A low-power capacitance measurement circuit with high resolution and high degree of linearity
Thanachayanont et al. Low‐Voltage Current‐Sensing CMOS Interface Circuit for Piezo‐Resistive Pressure Sensor
Ghoor et al. High-resolution capacitance-frequency converter for biosensor applications
CN101832788A (en) Capacitor continuous time reading circuit adopting chopped wave stabilizing technology
Bruschi et al. A low-power capacitance to pulse width converter for MEMS interfacing
Zadeh et al. High accuracy differential capacitive circuit for bioparticles sensing applications
CN106533424B (en) An Interface Circuit Compatible with Resistive and Capacitive Sensors
Arfah et al. Capacitance-to-voltage converter for capacitance measuring system
Zhao et al. A low-noise switched-capacitor interface for a capacitive micro-accelerometer
Lee et al. 1.5 V Sub‐mW CMOS Interface Circuit for Capacitive Sensor Applications in Ubiquitous Sensor Networks
Ramanathan et al. Low value capacitance measurements for capacitive sensors-a review
Shin et al. Improving the accuracy of capacitance-to-frequency converter by accumulating residual charges
Kim et al. A 105 dB Effective Dynamic Range Self-Capacitance Proximity Sensing System With Consecutive Double-Sided Conversion Technique
Aezinia et al. Low‐power, parasitic‐insensitive interface circuit for capacitive microsensors
De Marcellis et al. A novel general purpose current mode oscillating circuit for the read-out of capacitive sensors