RETIRED ›
This product is no longer available and has been replaced by: AVW200. Some accessories, replacement parts, or services may still be available.
AVW100 Interface for Vibrating-Wire Sensors

Overview

The AVW100 is available as a replacement part or as needed for continuity or compatibility, but Campbell Scientific recommends the AVW200-series interfaces for all new applications. The AVW200 interfaces are much more accurate and feature a high degree of noise immunity for your vibrating-wire measurements.

The AVW100 provides amplification and signal conditioning for the frequency signal of one vibrating-wire or vibrating-strip transducer. Compatible sensors include pressure, load, strain, or even vibrating-wire temperature sensors. The recommended frequency range is 250 to 9900 Hz (up to 5000 Hz in the CR5000). It is similar in general design to our AVW1 and AVW4, but it is designed for use with frequencies that those interfaces do not support (i.e., 250 to 1000 Hz).

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Benefits and Features

  • Interfaces one vibrating-strip/wire sensor to the datalogger
  • Interfaces both temperature and frequency measurements from vibrating-wire sensors
  • Supports a frequency sweep range of 250 to 9900 Hz
  • Can be used in conjunction with an AM16/32B or AM416 multiplexer

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Detailed Description

The AVW100 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 AVW100 provides amplification and signal conditioning for vibrating-wire pressure, load, strain, or temperature sensors. The recommended frequency range is 250 to 9900 Hz (up to 5000 Hz in the CR5000). It is similar in general design to our AVW1 and AVW4, but is designed for use with frequencies that those interfaces do not support (i.e., 250 to 1000 Hz).

Specifications

Frequency Sweep Range 250 to 9900 Hz
Number of Vibrating-Wire Sensors Measured One vibrating-wire sensor connects to the AVW100. Additional sensors can be measured by using an AM16/32-series multiplexer.

Compatibility

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.

Compatible Contemporary Dataloggers

CR200(X) Series CR800/CR850 CR1000 CR3000 CR9000X

Compatible Retired Dataloggers

CR500 CR510 CR10 CR10X 21X CR23X CR9000 CR5000 CR7X

Frequently Asked Questions

Number of FAQs related to AVW100: 3

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  1. Both the P28 and P131 instructions will work with the AVW100. The AVW100 was designed for sensors with measurement frequencies below 1000 Hz, so it is the best choice if any part of the swept frequency of the transducer is below 1000 Hz. Compared to the P28 instruction, the P131 instruction has four additional user-configured parameters, which allow the user to fine tune the measurement; otherwise, the P28 and P131 instructions are identical.

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

  3. The AVW1 is able to detect frequencies ranging from 1000 to 9900 Hz; the AVW100 is able to detect frequencies ranging from 250 to 9900 Hz.