AVW200 vibrating wire analyzer module

With an AVW200 vibrating wire analyzer module, your data logger can measure vibrating wire strain gages, pressure transducers, piezometers, tiltmeters, crackmeters, and load cells. These sensors are used in a wide variety of structural, hydrological, and geotechnical applications because of their stability, accuracy, and durability.

Datasheet

Brand	Campbell Scientific
Channels:	Up to 2 vibrating wire sensors can be connected to the analyzer module.
Analog Input/Output	2 differential (DF) vibrating wire measurements (V+ and V-) and 2 single-ended (SE) ratiometric resistive half-bridge measurements (T+ and T-) for vibrating wire sensor's onboard temperature sensor.
Digital Control Ports	3 digital control ports (C1 – C3) C1 functions as an SDI-12 I/O communication port. C2 functions as a Clk output for multiplexer control. C3 functions as a Reset output for multiplexer control.
RS-232 Port	1 9-pin RS-232 port (for connecting to a data logger COM port)
Baud Rates	Selectable from 1200 to 38.4 kbps. (ASCII protocol is one start bit, one stop bit, eight data bits, and no parity.)

Brand

Campbell Scientific

Channels:

Up to 2 vibrating wire sensors can be connected to the analyzer module.

Analog Input/Output

2 differential (DF) vibrating wire measurements (V+ and V-) and 2 single-ended (SE) ratiometric resistive half-bridge measurements (T+ and T-) for vibrating wire sensor's onboard temperature sensor.

Digital Control Ports

3 digital control ports (C1 – C3)
C1 functions as an SDI-12 I/O communication port.
C2 functions as a Clk output for multiplexer control.
C3 functions as a Reset output for multiplexer control.

RS-232 Port

1 9-pin RS-232 port (for connecting to a data logger COM port)

Baud Rates

Selectable from 1200 to 38.4 kbps. (ASCII protocol is one start bit, one stop bit, eight data bits, and no parity.)

Description

Overview

Learn about our patented VSPECT^® spectral-analysis technology at our VSPECT Essentials web resource.

The dynamic vibrating wire measurement technique is protected under U.S. Patent No. 8,671,758, and the vibrating wire spectral-analysis technology (VSPECT^®) is protected under U.S. Patent No. 7,779,690.

Benefits and Features

Provides better measurements by significantly reducing incorrect readings caused by noise sources
Interfaces two vibrating wire sensors; more sensors may be connected if an AM16/32B multiplexer is used
Self-checking diagnostics give continual feedback on sensor condition
High resolution—less than 0.001 Hz (industry standard is 0.1 Hz)
Low current drain
Interfaces both temperature and frequency measurements from vibrating wire sensors

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