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Delta sigma

  • Delta sigma的ADC橋測量技術

      Sensors for pressure, load, temperature, acceleration andmany other physical quantities often take the form of aWheatstone bridge. These sensors can be extremely linearand stable over time and temperature. However, mostthings in nature are only linear if you don’t bend them toomuch. In the case of a load cell, Hooke’s law states that thestrain in a material is proportional to the applied stress—as long as the stress is nowhere near the material’s yieldpoint (the “point of no return” where the material ispermanently deformed).

    標簽: Delta Sigma ADC 測量技術

    上傳時間: 2013-11-13

    上傳用戶:墻角有棵樹

  • 如何選擇補償的硅壓力傳感器

    Abstract: This reference design provides design ideas for a cost-effective, low-power liquid-level measurement dataacquisition system (DAS) using a compensated silicon pressure sensor and a high-precision delta-sigma ADC. Thisdocument discusses how to select the compensated silicon pressure sensor, suggest system algorithms, and providenoise analyses. It also describes calibration ideas to improve system performance while also reducing complexity andcost.

    標簽: 如何選擇 補償 硅壓力傳感器

    上傳時間: 2013-10-08

    上傳用戶:sjy1991

  • 賽靈思電機控制開發套件簡介(英文版)

      The power of programmability gives industrial automation designers a highly efficient, cost-effective alternative to traditional motor control units (MCUs)。 The parallel-processing power, fast computational speeds, and connectivity versatility of Xilinx® FPGAs can accelerate the implementation of advanced motor control algorithms such as Field Oriented Control (FOC)。   Additionally, Xilinx devices lower costs with greater on-chip integration of system components and shorten latencies with high-performance digital signal processing (DSP) that can tackle compute-intensive functions such as PID Controller, Clark/Park transforms, and Space Vector PWM.   The Xilinx Spartan®-6 FPGA Motor Control Development Kit gives designers an ideal starting point for evaluating time-saving, proven, motor-control reference designs. The kit also shortens the process of developing custom control capabilities, with integrated peripheral functions (Ethernet, PowerLink, and PCI® Express), a motor-control FPGA mezzanine card (FMC) with built-in Texas Instruments motor drivers and high-precision Delta-Sigma modulators, and prototyping support for evaluating alternative front-end circuitry.

    標簽: 賽靈思 電機控制 開發套件 英文

    上傳時間: 2013-10-28

    上傳用戶:wujijunshi

  • 高精度溫度測量鉑電阻溫度探測器(PRTDs)和??ADC

    Abstract: Many modern industrial, medical, and commercial applications require temperature measurements in the extended temperature rangewith accuracies of ±0.3°C or better, performed with reasonable cost and often with low power consumption. This article explains how platinumresistance temperature detectors (PRTDs) can perform measurements over wide temperature ranges of -200°C to +850°C, with absolute accuracyand repeatability better than ±0.3°C, when used with modern processors capable of resolving nonlinear mathematical equation quickly and costeffectively. This article is the second installment of a series on PRTDs. For the first installment, please read application note 4875, "High-Accuracy Temperature Measurements Call for Platinum Resistance Temperature Detectors (PRTDs) and Precision Delta-Sigma ADCs."

    標簽: PRTDs ADC 高精度 溫度測量

    上傳時間: 2013-11-06

    上傳用戶:WMC_geophy

  • ADC簡化測量高阻抗傳感器

      Delta-sigma ADCs, with their high accuracy and high noiseimmunity, are ideal for directly measuring many typesof sensors. Nevertheless, input sampling currents canoverwhelm high source impedances or low-bandwidth,micropower signal conditioning circuits. The LTC®2484family of Delta sigma converters solves this problem bybalancing the input currents, thussimplifying or eliminatingthe need for signal conditioning circuits.

    標簽: ADC 測量 傳感器 高阻抗

    上傳時間: 2015-01-03

    上傳用戶:潛水的三貢

  • 一個3階的CIC內插濾波器

    一個3階的CIC內插濾波器,可作為Delta sigma DAC升采樣率模塊,用于半帶濾波器后。

    標簽: CIC 內插 濾波器

    上傳時間: 2014-02-23

    上傳用戶:古谷仁美

  • 用fpga實現的DA轉換器

    用fpga實現的DA轉換器,有說明和源碼,VDHL文件。 A PLD Based Delta-Sigma DAC Delta-Sigma modulation is the simple, yet powerful, technique responsible for the extraordinary performance and low cost of today s audio CD players. The simplest Delta-Sigma DAC consists of a Delta-Sigma modulator and a one bit DAC. Since, both of these components can be realized using digital circuits, it is possible to implement a low precision Delta-Sigma DAC using a PLD.

    標簽: fpga DA轉換器

    上傳時間: 2016-06-10

    上傳用戶:bjgaofei

  • SIGMA-DELTA 原理 實現的用LPC900系列單片機的比較器實現16位A/D。 有詳細的說明和源代碼(匯編格式

    SIGMA-DELTA 原理 實現的用LPC900系列單片機的比較器實現16位A/D。 有詳細的說明和源代碼(匯編格式,但是可以在KEIL下的C中調用)。

    標簽: SIGMA-DELTA LPC 900 單片機

    上傳時間: 2014-01-16

    上傳用戶:懶龍1988

  • ADS1100 16-bit sigma-delta differential ADC 與 MSP430F413接口設計。

    ADS1100 16-bit sigma-delta differential ADC 與 MSP430F413接口設計。

    標簽: differential sigma-delta 1100 430F

    上傳時間: 2013-12-23

    上傳用戶:2404

  • filter design sigma delta filter

    filter design sigma delta filter

    標簽: filter design delta sigma

    上傳時間: 2015-06-24

    上傳用戶:chenjjer

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