10 results about "Sensor array" patented technology

An optical biosensor pixel for detecting the amount of light that is generated by the biosensing process and a biosensor array architecture that includes such biosensor pixels. The optical biosensor pixel includes a photodiode configured to convert an incident photon flux into a current. Additionally, the optical biosensor pixel includes an optical filter configured to select specific wavelengths and/or photon flux angles to reach the photodiode from a biological sample. The biosensor pixel further includes a trans-impedance amplifier coupled to the photodiode, where the trans-impedance amplifier is configured to convert the current into a voltage signal. Additionally, the biosensor pixel includes a 1-bit comparator coupled to the trans-impedance amplifier and a 1-bit digital-to-analog converter coupled to the 1-bit comparator, where the 1-bit digital-to-analog converter injects different levels of charge into an input of the trans-impedance amplifier at each cycle based on an output of the 1-bit comparator.

The present invention proposes a hardware and software architecture for dynamic modal structural monitoring that uses a robust modal filter to monitor a potentially very large-scale array of sensors in real time, and tolerant of asymmetric sensor noise and sensor failures, to achieve aircraft performance optimization such as minimizing aircraft flutter, drag and maximizing fuel efficiency.

A fingerprint sensor includes: a panel including a sensor array including first electrodes extended in a first direction and second electrodes extended in a second direction intersecting with the first direction; and a forged fingerprint analyzer configured to provide signals having different frequencies to a first electrode group and a second electrode group, and to measure an impedance between the first electrode group and the second electrode group to determine whether a fingerprint applied to the sensor array is forged, wherein the first electrode group includes a portion of a plurality of electrodes among the first electrodes or the second electrodes, and the second electrode group includes another portion of the plurality of electrodes.

The invention belongs to the technical field of testing and particularly relates to a quaternary composite array sensing layout method based on PIR (passive infrared) sensors and microphones, aiming to solve the technical problems of mutual interference of spatial layout and poor sensing effect of a composite sensor in a limited space currently. The quaternary composite array sensing layout method based on the PIR sensors and the microphones comprises a quaternary cross-shaped PIR sensing array and a quaternary microphone array. The quaternary cross-shaped PIR sensing array comprises four human body probers which are arranged at equal intervals by surrounding a central point, a probe of each human body prober faces outward, and the four human body probers are used for probing four directions on the horizontal plane respectively. The quaternary microphone array comprises four microphones which are arranged in four dual-sensing areas respectively. The quaternary composite array sensing layout method based on the PIR (passive infrared) sensors and the microphones has the advantages that by means of composite optimization of the PIR array and the sensor array, the problem that micro sensing node space is limited is solved; the two kinds of arrays are combined mutually but do not interfere with each other; a target can be discovered quickly and positioned precisely.

The present invention belongs to the technical field of medical instruments, and specifically relates to a traditional Chinese medicine pulse manifestation acquisition apparatus. The apparatus comprises a sensor array, a multipath signal conditioning circuit, a multipath synchronous A/D circuit and a single chip microcomputer; the sensor array comprises pulse sensors and noise sensors, and the noise sensors are used for acquiring vibration noise data introduced by a body; the multipath signal conditioning circuit is used for filtering and amplifying signals acquired by the sensors; the multipath synchronous A/D circuit is used for synchronously acquiring the signals processed by the multipath signal conditioning circuit in real time and converting the signals into digital signals; and the single chip microcomputer is used for sending the converted digital signals into an intelligent terminal. The present invention also provides a noise reduction system and a noise reduction method. The pulse sensor data are corrected by utilization of noise sensor data, interference of vibration noise on a traditional Chinese medicine pulse manifestation instrument can be effectively reduced, and therefore repeatability and accuracy of pulse manifestation instrument diagnosis can be improved.

A method for evaluating a sensor array includes providing software having the sensor array topology, relating array elements to hardware components. Data from the array elements is collected and evaluated to determine operative components. Displays of the determinations are generated allowing a user to diagnose sensor array failures. Other aspects of the invention provide for automatic array failure diagnosis and improvement of sensor array directivity. An additional aspect provides a system for evaluating a sensor array incorporating a computer with a database and a display.

The embodiment of the invention discloses an image scanning method, device, a reader and a computer readable storage medium, wherein the method comprises the following steps: if the to-be-scanned paper is detected through a first sensor array, controlling a stepping motor to drive the to-be-scanned paper in the paper feeding channel of the reader to advance, wherein the direction angle of the to-be-scanned paper into the reader is arbitrary; and if a second sensor array detects that the head of the to-be-scanned paper reaches the upper edge of a CIS scanning array, controlling the CIS scanningarray to enter a scanning state to scan the to-be-scanned paper after the to-be-scanned paper advances for a distance L0; and if the second sensor array detects that the tail of the to-be-scanned paper goes away from the lower edge of the CIS scanning array, controlling the stepping motor to drive the to-be-scanned paper to advance for a distance L4, and then turning off the CIS scanning array. According to the invention, the scanning of the to-be-scanned paper in any direction and angle can be realized.

The invention discloses a steel pipe longitudinal defect magnetic leakage detection device based on a rotary magnetizing field. The device comprises a rotary magnetizer, an excitation power supply, an area array sensor array, an area array sensor array support, a filter, an amplifier and an A/D (analog-to-digital) converter. The excitation power supply provides three-phase asynchronous alternating current for the rotary magnetizer, and the rotary magnetizing field is generated inside the rotary magnetizer. The annular area array sensor array is fixed into the rotary magnetizer through the support and fully circumferentially covers a steel pipe. When the steel pipe passes the detection device, the rotary magnetizing field fully, circumferentially and uniformly magnetizes the steel pipe. If the steel pipe has a longitudinal defect, a defect magnetic flux leakage field is generated, picked by a sensor at a position corresponding to the defect and converted into an electric signal, the electric signal is transmitted to a computer sequentially through the filter, the amplifier and the A/D converter, and the longitudinal defect is detected. The steel pipe is fully, circumferentially and uniformly magnetized by the device, longitudinal defect detection efficiency is improved, and cost is reduced.