Latest Newsletter Is Out: "Focus on RT SpecAns"

http://www.saelig.com/news/newsletters/saelig1907-m.htm

Spectrum analyzers measure the magnitude of an input signal over a specified frequency range, displaying signal frequency, power, distortion, harmonics, etc. - parameters that are not easily available with time domain waveforms. Standard spectrum analyzers sweep a limited frequency band receiver over the range of the instrument, but this means that intermittent or frequency-hopping signals will be missed or incorrectly reported. Real-time analyzers don't have that limitation since they use overlapping FFTs to view the whole spectrum range at the same time. Real-time techniques simplify spectrum monitoring to quickly capture, identify, and analyze complex RF environments containing frequency hopping signals, channel conflicts and spectrum interference.

Saelig Introduces PicoScope 4823 8-Channel Automotive Oscilloscope

The PicoScope 4823 oscilloscope brings eight-channel high-speed performance to vehicle diagnosis. This deep-memory PicoScope provides 12-bit resolution, 20MHz bandwidth, a 256MSa buffer memory, and a SuperSpeed USB 3.0 interface.

Saelig Company, Inc. has introduced the Pico Technology PicoScope 4823 - the world’s first high-speed, high-resolution, 8-channel automotive oscilloscope. It is fast enough for decoding the latest commonly used serial protocols used in vehicles, such as CAN, CAN FD, and FlexRay.  The 4823 scope offers eight common-ground signal input channels with a maximum input range of 50V and protection to 100V. The oscilloscope’s maximum sample rate of 80MSa/s (10MSa/s when using all eight channels) is sufficient to be able to see subtle signal anomalies in vehicle sensor output.  This PicoScope provides 12-bit resolution, 20MHz bandwidth, a 256MSa buffer memory, and a SuperSpeed USB 3.0 interface. The deep memory can capture several seconds of data at the full sampling rate, which is ideal for evaluating long serial data records or intermittent glitches. 

The 4823 operates with the well-known, versatile PC-based PicoScope Automotive software which includes more than 150 guided automotive tests, and provides access to thousands of automotive reference signal comparisons in Pico’s Waveform Library.  Software tools included in PicoScope software include the waveform buffer, mask limit test, and serial decode.  Powered solely from a USB port, the compact PicoScope 4823 is also perfect for field use since it even includes a low-voltage arbitrary waveform generator. 

Diagnostic applications for the Picoscope 4823 automotive oscilloscope include:

• V6/V8 Cam timing (4/6 cams plus crank, and sometimes a WPS), and VVT timing systems
• Trucks, construction and agriculture equipment analysis which typically requires a mix of electrical and hydraulic measurements on multiple valves simultaneously to diagnose problems with system interactions
• Broad system diagnosis on multiple components (including power, ground, signals, current)
• Diagnosing faults on multiple serial busses (CAN, CAN FD, LIN, FlexRay)

PicoScope test equipment is used and trusted worldwide by both manufacturers’ and independent repair shops because it gives the capability, confidence, and support required to quickly find and verify the solutions for most vehicle faults.   

Saelig Introduces T3RC Rogowski Coil Current Probes For A.C. or Fast Pulse Current Measurements

www.saelig.com/pr/t3rc.html

Saelig Co. Inc. has introduced  Teledyne Test Tools T3RC Rogowski Current Probes that offer broad current measurement ranges and a wide frequency span which are also easy to use in difficult-to-reach parts of circuits.  Five models are available, providing measurement capabilities up to 6,000 amps and with the capability to connect around the leg of a small T0-220 device. The probes connect to any standard oscilloscope via a conventional BNC connection.

The flexibility of the probe sense coil means that measurements can usually be made without modification to the circuit under test, giving more accurate electrically-isolated results with a very low insertion load (a few pH).  Being designed for either battery power or wall plug operation, these Rogowski Current Probes are equally suited to field work or benchtop measurements.

The T3RC0300-UM version features the smallest cross-section sense coil at only 1.7mm to allow probing around the leg of small power components such as inductors, capacitors or even switching devices as small as a TO-220 MOSFET. The T3RC0600-HF and T3RC3000-HF models cover applications up to 600A and 3000A respectively. With extended high frequency coverage, 5kV peak insulation and wide operating temperature range from -40degC to +125degC, these probes are ideal for both industrial temperature as well as general environments. The T3RC3000-LF and T3RC6000-LF versions offer an extended low frequency performance down to less than 1Hz. The low frequency performance means that the maximum droop on low frequency pulses is typically 0.1%/ms or less, while offering the highest level of peak insulation of 10kV and an operating temperature range of -20degC to +100degC.

T3RC Features

• 5 different probes cover a wide range of applications.
• Maximum current measurement coverage up to 6000A.
• Maximum voltage insulation up to 10kV peak.
• Connect to a wall plug or use with batteries.
• Low loading of the circuit under test.
• Wide coil operating temperature from -40degC to +125degC on (UM and HF), -20degC to +100degC (LF).
• Use without modification to the DUT.

Applications include current measurements in R&D, motor drives, power converters, system maintenance, etc.