Microsoft LPF-00004 Manual del operador descargar pdf (Pagina 27)

FUNCTIONAL DESCRIPTION Page 9

CYBERAMP 380, COPYRIGHT MARCH 2002, AXON INSTRUMENTS, INC.

5) LINK

connector.

The outputs from all eight channels are available on a single 15-pin connector

on the rear panel.

Typically this connector would be attached to a special cable to take the eight outputs directly

to the A/D board of the computer, eliminating the need to take the signals via an intermediate

BNC connector box. To take full advantage of this convenience, six uncommitted BNC

connectors on the back panel (labeled LINK 1-6) are directly wired to six of the unused pins in

the multi-pin signal connector. By appropriately wiring the cable, it is possible both to connect

the eight signals to the analog inputs on the A/D board, and to simultaneously bring some of the

other input and output connections from the A/D board to the rear-panel BNCs on the

CyberAmp. For example, the following six signals might be connected: D/A output, trigger

input, two digital outputs and two digital inputs.

Chart recorder output.

In some cases, CyberAmp outputs will be connected to a chart

recorder. This adjunct to the computer might be due to the record-keeping requirements in the

laboratory or to the preference of the user. In other cases, the chart recorder might be used as

the sole means of data storage, with the computer used only to control the CyberAmp.

For convenience with chart recorders, a 15-pin D-connector labeled "chart-recorder" on the rear

panel has all eight output signals available. To match the input compliance range of most chart

recorders, the signals on the chart-recorder connector are attenuated by ten and restricted to a

±1 V swing. For example, if a normal output has a gain of x500, its corresponding chart-

recorder output has a gain of x50.

In order to connect a chart-recorder, the user must provide a suitable cable.

Axon Instrument SmartProbes.

Several probes are available which act as active amplifiers,

such as the x10 and x50 differential preamplifiers and a low-noise picoammeter, in addition to a

passive adapter.

On request, the CyberAmp 380 tells the host computer the contents of the probe memory.

8) Customers are encouraged to fabricate their own transducers for connection to the CyberAmp

380. Cable and connector kits are available for this purpose. Customers can also easily make

special purpose SmartProbes. The connector kit includes a small circuit board containing the

memory circuit. A small memory circuit is located inside the connector of each SmartProbe.

This memory contains information such as the model and serial number of the SmartProbe, the

manufacturing/test date, the identity, units, and scale factor of its transducer, and, when

required, coefficients for a linearizing polynomial fitting the performance of the transducer. On

request, the CyberAmp 380 can pass information from the host computer to the permanent

probe memory.

Main memory.

The complete settings for all functions of each channel can be stored in the

main memory of the CyberAmp, on command from the host computer. The memory is retained

without power, and the CyberAmp 380 always powers up using the settings stored in the main

memory.

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Microsoft LPF-00004 Manual del operador Pagina 27

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