랩레이도 - USB 오실로스코프, 신호생성기, 로직분석기, 멀티미터

(Labrador -All-in-one USB Oscilloscope,

Signal Generator, Power Supply,

Logic Analyzer, Multimeter)

 

개요

  • 본 제품은 오픈 소스 랩레이도 올인원 USB 오실로스코프, 신호생성기, 로직분석기, 멀티미터입니다.
  • 메이커나 전자공학도, 전자 취미를 가진 분들을 위한 올인원 분석툴 보드 랩레이도입니다.
  • PC(Windows/Mac/Linux)나 라즈베리, 안드로이드 장치에 microUSB 케이블로 연결하고, 소프트웨어를 실행하면 바로 사용이 가능한 엔지니어링 툴이 됩니다.
  • 아래와 같은 기능을 지원합니다.
    • Oscilloscope (2 channel, 750ksps)
    • Arbitrary Waveform Generator (2 channel, 1MSPS per channel)
    • Power Supply (4.5 to 12V, 0.75W max output, with closed-loop feedback)
    • Logic Analyzer (2 channel, 3MSPS per channel, with serial decoding)
    • Multimeter (V/I/R/C)
  • 이 제품은 상대적으로 하드웨어 개발보다 소프트웨어 개발에 많은 시간과 노력이 들어간 제품으로 아래와 같은 소프트웨어 인터페이스를 가지고 있습니다.
  • 데스크탑용과 안드로이드용 앱이 있습니다.

특징

  • Full specs:
    Oscilloscope Sample Rate 750ksps (shared)
    Bits per Sample 8, 12¹
    Bandwidth ~100kHz²
    Input Voltage Range -20V to +20V
    Input Impedance 1 MΩ
    No. of Channels 2
    Coupling AC/DC
    Arbitrary Waveform Generator Waveform types Sin, Square, Triangle, Sawtooth, Arbitrary
    Sample Rate 1Msps
    Sample Depth 512 samples per channel
    Output voltage range 0.15V to 9.5V
    Bits per Sample 8
    Max. Current 10mA³
    Output Resistance 50Ω
    No. of Channels 2
    Variable Power Supply Voltage Range 4.5V to 12V
    Max. Power 0.75W
    No. of Outputs 1
    Source Impedance Negligible⁴
    Ripple Voltage +-300mV%@10V 10mA, +-700mV%@10V 100mA
    Logic Analyzer Sample Rate 3Msps per channel
    Supported voltage 3.3V, 5V, 12V
    No. of Channels 2
    Digital Output Voltage 3.3V
    Source Impedance 50Ω
    Multimeter⁵ Input Impedance 1MΩ
    Measured Parameters V, I, R, C
    Voltage Range -20V to +20V
    Current Range 100uA to 10A
    Resistance Range 1 ohm to 100k
    Capacitance Range 10nf to 1mf
    Supported Platforms Windows Windows 7, 8, 8.1 or 10. 32 and 64-bit supported.
    MacOS 10.10 (Yosemite) or later
    Linux Ubuntu 14.04 or later (or similar). 32 and 64-bit supported.
    Android Version 4.1 or later

    ¹ – 12-bit sampling is available at 375ksps, single-channel only. ² – This figure is an approximate “maximum detectable frequency” dictated by the sample rate. ³ – This figure is for source current. Current is sunk partially into the opamp driving the signal gen and partially into a 1k resistor. Thus, maximum sink current can be calculated by dividing the output voltage by 1k and adding 50µA. This configuration was chosen so that capacitive loads could be driven without significant nonlinearities. In simpler terms, this means that if you’re trying to drive current into the waveform generator through use of an external current source, then the maximum current that the waveform generator can handle is reduced. (This is not something that would be an issue for most people.) ⁴ – The Power Supply is controlled by a closed-loop feedback loop that ensures the DC voltage across output remains constant. Thus, it has nonlinear elements, but can still be approximated by a Thévenin circuit with Vth = Vo and Rth = 0. ⁵ – Multimeter ranges vary with reference resistor used.

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