RETIRED ›
This product is no longer available and has been replaced by: AVW200. Some accessories, replacement parts, or services may still be available.
AVW4 Interface for Vibrating-Wire Sensors

Overview

The AVW4 provides amplification and signal conditioning for the frequency signal of up to four vibrating-wire or vibrating-strip transducers. Compatible sensors include pressure, load, strain, or even vibrating-wire temperature sensors. The recommended frequency range is 1000 to 9900 Hz (up to 5000 Hz in the CR5000).

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Benefits and Features

  • Interfaces four vibrating-wire sensors to the datalogger
  • Interfaces both temperature and frequency measurements from vibrating-wire sensors
  • Supports a frequency sweep range of 1000 to 9900 Hz

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Detailed Description

The AVW4 is available as a replacement part or as needed for continuity or compatibility, but we recommend the AVW200-series interfaces for all new applications. The AVW200-series interfaces are much more accurate and feature a high degree of noise immunity for your vibrating-wire measurements.

The AVW4 provides amplification and signal conditioning for up to four vibrating-wire pressure, load, strain, or temperature sensors. The recommended frequency range is 1000 to 9900 Hz (up to 5000 Hz in the CR5000).

Specifications

Frequency Sweep Range 1000 to 9900 Hz (performance optimized for greater than 1000 Hz)
Number of Vibrating-Wire Sensors Measured Four vibrating-wire sensors connect to the AVW4. Additional sensors can be measured by using an AM16/32-series multiplexer.

Compatibility

Note: The following shows notable compatibility information. It is not a comprehensive list of all compatible or incompatible products.

Data Loggers

Product Compatible Note
21X (retired)
CR10 (retired)
CR1000
CR10X (retired)
CR200X (retired)
CR206X (retired)
CR211X (retired)
CR216X (retired)
CR23X (retired)
CR295X (retired)
CR3000
CR500 (retired)
CR5000 (retired)
CR510 (retired)
CR800
CR850
CR9000 (retired)
CR9000X

Additional Compatibility Information

Datalogger Considerations

Programming

Vibrating-wire/strip transducers are measured by the VibratingWire Instruction in CRBasic, and by Instruction 28 (Vibrating Wire) in Edlog. The datalogger produces a swept-frequency excitation, then measures a specified number of cycles of the sensor's resonant frequency.


Frequently Asked Questions

Number of FAQs related to AVW4: 1

  1. The AVW1, AVW4, and AVW100 have a resolution of 0.1 Hz. Certifications of compliance for these items are not available.

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