LAN-XI Output Channels

Uses

Generator output channels for system excitation for sound and vibration measurements

Features

Two output channels: full generator functionality from 0 to 51.2 kHz
Output voltage up to 10Vpeak and output current up to 40mApeak
Waveforms determined by software (see below)
High amplitude and frequency linearity
Extremely low noise floor
Selectable floating or grounded outputs
Capable of heavy complex loading without instability
Low out-of-band spurious noise
Overload detection on both channels individually (voltage and current) indicated by alternating red/blue LEDs on front panel
Generator channel indicated by blue LED on front panel (active or not)
Automatic shutdown (muting) of both channels simultaneously at failure (for example, lost connection to LAN) or excessive output loading
Full output phase control among modules
Power down mode (mutes signal and shuts off power to output channels) if the PoE supply is too low (to prevent functional failure on input channels)

The two output channels on Type 3160 can be used as high-quality signal generators with a frequency range from 0 to 51.2 kHz and can supply the signals necessary for performing system analysis.

Type 3160 is designed around a powerful digital signal processor and a low-noise, 24-bit, D/A converter. Type 3160 has exceptional flexibility, stability and accuracy. Output levels are adjustable in hardware (two ranges) with maximum outputs of 316mVpeak and 10Vpeak. Highquality levels from 1 μV to 316mV or 10V are obtained. The output signal is provided by a BNC connector and can be referred to ground or floating. It is possible to add a DC offset, but any unwanted DC offset is automatically removed.

Waveforms

The waveform types supported by PULSE are:

Single fixed sine (continuous or burst)
Single swept sine
Dual fixed sine
Dual swept sine
Fixed sine plus swept sine
Stepped sine (with Steady State Response Analyzer)
Random (continuous or burst)
Pseudo-random
Periodic random
User-defined, arbitrary waveforms can be streamed/downloaded

Ranges

The fact that there are only two hardware ranges allows amplitude sweeping over a larger range, without the presence of disturbing transients from range-shifting attenuators. To avoid these transients, the range of interest can be locked.
Due to the large dynamic range, it is possible to generate very accurate low-level signals.

Linearity

Frequency linearity is better than ±0.1 dB over the whole frequency range and amplitude linearity better than 0.1 dB over at least 80 dB amplitude range referred to full scale (316mV_peak or 10V_peak).

Overload

Output voltages above 11Vpeak or output currents above 40mA_peak are indicated as overloads by the circular LEDs on the output channels.

Security

Automatic shutdown of both outputs is initiated in cases of heavy overload (shorted output) that could affect module functionality by drawing more current than available. The signal ramps up again when the overload is removed.

Output shutdown is also initiated after less than one second if LAN connection is lost.