Comecei a filtrar as opções já apresentadas e incluir algumas opções.
http://www.testequipmentdepot.com/tektr ... s2012c.htm
http://www.amazon.com/Tektronix-TDS2012 ... B00A4LKGAY
Preço: 1179 Obamas. Display colorido.Specifications
Display (QVGALCD) TFT
Bandwidth 100 MHz
Channels 2
External Trigger Input Included
Sample Rate on each channel 2 GS/sRecord Length 2.5k Points at all times bases
Vertical Resolution 8 Bits
Vertical Sensitivity
2mV to 5V/div on all models with calibrated fine adjustment
DC Vertical Accuracy ±3% on all models
Vertical Zoom Vertically expand or compress alive or stopped waveform
Maximum Input Voltage 300 VRMS CATII; derated at 20dB/decade above 100kHz to 13Vp-p AC at 3MHz
Position Range 2mV to 200mV/div+2V
>200mV to 5V/div + 50V
Bandwidth Limit 20 MHz for all models
Input Coupling AC, DC ,GND on all models
Input Impedance 1MΩ in parallel with 20pF
Time Base Range
2.5ns to 50s/div
TimeBase Accuracy 50ppm
Horizontal Zoom Horizontally expand or compress alive or stopped waveform
I/O Interfaces
USBPorts USB host port on front panel supports USB flash drives
USB device port on back of instrument supports connection to PC and all PictBridge-compatible printers
GPIB Optional
Nonvolatile Storage
Reference Waveform Display (2) 2.5k point reference waveforms
Waveform Storage
without USB Flash Drive (2) 2.5k point
Maximum USB Flash
Drive Size 64 GB
Waveform Storage
with USB Flash Drive 96 or more reference waveforms per 8MB
Setups without
USB Flash Drive 10 front-panel setups
Setups with USB
Flash Drive 4000 or more front-panel setups per 8MB
Screen Images with
USB Flash Drive 128 or more screen images per 8MB (the number of images depends on file format selected)
Save All with USB
Flash Drive 12 or more Save All operations per 8MB
A single Save All operation creates 3 to 9 files (setup, image, plus one file for each displayed waveform)
http://www.tequipment.net/RigolDS2102.htmlPreço: 1143 Obamas. Display colorido. Wider vertical range(
500uV/div ~ 10V/div), lower noise floor, better for small signal capturing
Full bandwidth, lower overshoot(<5%),perfact frequency response design
Bandwidth 70MHz,100MHz,200MHz
Max. Sample Rate 2G Sa/s Standard Memory Depth up to14Mpts,Optional Memory Depth up to 56Mpts
Innovative "UltraVision" technology
Waveform capture rate up to 50,000 wfs/s
Up to 256 Levels intensity grading waveform display
Up to 65,000 frames Hardware based Real Time waveform Record,Replay and Analysis function(Std.)
A variety of trigger and optional RS232,I2C,SPI serial bus decording functions (opt SD-DS2)
Complete connectivities :USB Host,USB Device,LAN(LXI),AUX
8 inch TFT (800x480) WVGAhttp://www.batronix.com/shop/oscillosco ... 1102D.htmlPreço: 839 Obamas. Display colorido. General Data
DS1102D
Display
5.7" TFT LCD with 65536 colors Resolution
320 × 234 Pixel Supported operation systems
Windows 7 (32Bit + 64Bit), Vista (32Bit + 64Bit), XP (32Bit + 64Bit)
Oscilloscope Details
DS1102D
Channels
2
Real-time sample rate
1 GSa/s real time Bandwidth
100 MHz
Sampling mode
Normal, average (2, 4, 8, 16, 32, 64, 128, 256), peak detect
Mathematics
A+B, A-B, A×B,
FFT (Fast Fourier Transform)
FFT windows
Rectangle, Hanning, Hamming, Blackman
Signal
DS1102D
Max. Input voltage
300 Vrms CAT I
Real-time sample rate
13 Sa/s to 1 GSa/s real time
Time base
2 ns/Div. to 50 s/Div.
(Steps 1 - 2 - 5)
Memory
1 Mpts (1 channel)
512 kpts (2 channels, logic analyzer channels)
Vertical
DS1102D
Analog digital converter (A/D)
With the resolution of 8 bits, make sampling on both channels synchronously.
Sensitivity range (V/div)
2 mV/Div to 10 V/Div.
Displacement range
±10 Div. (2 mV - 10 V)
Trigger
DS1102D
Trigger
Channel 1, Channel 2, Ext, Ext / 5, AC Line
Signal system and line/field frequency (Video triggering mode)
Support the NTSC, PAL and SECAM broadcasting systems of any field or line frequency.
Measurement
DS1102D
Cursor measurement
Manual, Track and Auto Measure modes
Auto measurement
Vpp, Vamp, Vmax, Vmin, Vtop, Vbase, Vavg, Vrms, Overshoot, Preshoot, Freq, Period, Rise Time, Fall Time, +Width, -Width, +Duty, -Duty, Delay1-2 (rise), Delay1-2(fall)
Logic-Analyzer Details Logic-Analyzer Details
DS1102D
Sample rate (real time)
20 Sa/s - 200 MSa/s
Channels
16
Record length
512 kpts per channel
Input impedance
1 MΩ±2%
Logic levels
TTL, CMOS, ECL, User (-8 V bis +8 V)
Só não apresenta como conectar os canais digitais.
Importante:Preço: Até 1200 Obamas
Taxa de amostragem máxima 2Gs/s: Tek TDS2012C e Rigol DS2102
Sensibilidade vertical 500uV/cm: Rigol DS2102
Display colorido: Tek e Rig 1102D (5,7"), Rigol 2102 (8")
Analisador lógico: Rig DS1102D
Aí é que fica a dúvida.
Qual dos três?
Até o momento compraria o Rigol DS2102.MOR_AL
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