Model 8233 Digital Stabilizer
Features
- Zero and Gain Stabilization performed simultaneously
- Up to 14-bit ADC input (16 384 channels)
- EIA RS-232 control
- Gain and Zero recorder outputs
Description
The Model 8233 Digital Stabilizer maintains the stability of high resolution spectroscopy systems in nuclear applications involving long count times or high count rates. This single-width NIM module accomplishes this by correcting the conversion gain and/or the zero intercept of a binary analogto- digital converter (ADC). It can be used to correct for both conversion gain and zero intercept drift simultaneously if required.
The Model 8233 detects the drift of all system components up to and including the ADC by monitoring the digital output of the ADC. Consequently all system drift can be compensated for by applying a correction to the ADC only.
The Model 8233 remains passive unless drift correction is required, unlike other digital stabilizers that alternately add or subtract counts in a correction register, even when drift does not occur. Because of this, the Model 8233 produces less peak broadening and better overall resolution.
The Model 8233's front panel bar graph indicates the magnitude and direction of the system's zero or gain drift, as well as an approximation of the correction rate. A second display shows a digital value for the correction rate, the window width, the peak channel, or the analog range setting. The rear panel provides analog recorder outputs that allow the user to monitor system drift over extended periods of time.
Operation of the Model 8233 is the same for either the gain or zero intercept correction, except for the relative location of the reference channel. In either case the user selects a reference channel and a "window", centered on the reference channel. This channel is used by the stabilizer to monitor and correct for drift.
A high-end spectral channel is selected for gain stabilization, since gain drift is more pronounced in the upper channels. A low-end channel reference is selected for zero intercept stabilization to prevent interference from the effects of gain drift. In either case the analog output range can be adjusted to compensate for expected or encountered drift in the system.
Note to our International Customers: If you would like a quote on this product, please contact your Local Sales Office for assistance. |
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| Models | Description | |
| 8233 | Digital Stabilizer | |