Scopes with digital triggers

22 June 2011 Test & Measurement

Rohde & Schwarz has developed a digital oscilloscope that employs a real-time digital trigger. Designated the RTO series, the instrument is designed to aid in debugging embedded systems.

The real-time digital trigger in the RTO uses a common signal path for both the trigger and acquired data. This eliminates time and amplitude offset between the trigger and signal, enabling signals to be displayed with the least possible trigger jitter and allowing precise results to be achieved when measuring complex waveforms.

Analog triggers typically have a long re-arm cycle, and while re-arming, the instrument cannot react to trigger events, which means signal properties that should act as triggers are masked. Because the RTO scopes’ digital trigger does not need to re-arm, every sample can trigger data acquisition to avoid missing events. In addition, errors in serial interfaces are often caused by sporadic signal faults at the physical layer, so high acquisition rates are essential in order to detect them. Since these new instruments acquire and display signals using hardware, blind time is minimised and errors are located quickly.

Also, many embedded systems employ serial data interfaces to control external devices and simply viewing the waveform is not sufficient to fully debug the operation of these systems. The RTO features an integrated trigger and decode feature that allows users to trigger on protocol-specific features and to display the captured waveform in binary, ASCII or HEX formats. The trigger and decode feature supports SPI, I²C, CAN, LIN and RS232.

For more information contact Trevor Grundlingh, Protea Electronics, +27 (0)11 719 5700, [email protected], www.protea.co.za

Further reading:

60 MHz 16-bit AWG
Vepac Electronics Test & Measurement
Siglent’s SDG1000X Plus series function/arbitrary waveform generator offers a maximum output frequency of 60 MHz, 16-bit vertical resolution, 1 GSa/s sampling rate, and 8 Mpts arbitrary waveform length.

Read more...

---

AC programmable power
Accutronics Test & Measurement
TDK Corporation has announced the introduction of the TDK-Lambda brand GENESYS AC and GENESYS AC PRO series of 2 kVA and 3 kVA rated programmable AC power sources.

Read more...

---

QA introduces large chisel tip style probes
Techmet Test & Measurement
The two new probes have a larger diameter to provide better contact reliability.

Read more...

---

Digital PSU with four variable outputs
Vepac Electronics Test & Measurement
The PeakTech 6215 is a laboratory power supply with four separate voltage outputs, each one infinitely variable using the rotary controls on the front of the unit.

Read more...

---

High-voltage insulation resistance testers
Comtest Test & Measurement
Two new high-voltage insulation resistance testers, from Fluke, deliver accuracy and speed in industrial and solar PV applications.

Read more...

---

Digital accelerometer for high dynamics applications
RS South Africa Test & Measurement
TDK extends its Tronics portfolio with the AXO314, a high-performance digital MEMS accelerometer with ±14 g input range for industrial applications operating under shock and vibration.

Read more...

---

Acceleration sensors for wearables
Future Electronics Test & Measurement
Bosch Sensortec has introduced two new acceleration sensors, the BMA530 and BMA580, both offered in a compact size of only 1,2 x 0,8 x 0,55 mm.

Read more...

---

Accurate laser measurement
Avnet Silica Test & Measurement
Online Teaser: Panasonic Industry’s laser sensor has a resolution of up to 0,5 µm, a linearity of ±0,05% FS, and a high-speed sampling of 100 µs.

Read more...

---

Handheld analyser with wide frequency range
Vepac Electronics Test & Measurement
The PXN-400 from Harogic is a handheld spectrum analyser that covers a frequency range of 9 kHz to 40 GHz, with an analytical bandwidth of 100 MHz.

Read more...

---

Real-time portable spectrum analyser
Vepac Electronics Test & Measurement
The SA series from HAROGIC Technologies is designed as a compact USB real-time spectrum analyser using low SWaP principles.

Read more...

---