Measurement & Control Peripherals
Expand your datalogger's measurement and control ability
Multiplexers
Multiplexers allow our dataloggers to measure more sensors. The number of analog inputs is increased by sequentially multiplexing sensor leads into "common" leads. The individual...
Synchronous Devices for Measurement
Synchronous Devices for Measurement (SDMs) are a group of addressable peripherals that expand the datalogger's output and measurement capabilities. The datalogger controls the SDM output...
Vibrating Wire Interfaces
These interfaces allow our dataloggers to read vibrating wire sensors. Vibrating wire (or vibrating strip) transducers are commonly used to measure strain, load, pressure, and...
Wireless Sensor Interfaces
These components are used to interface with our wireless sensors. Products included in this category are base stations, the wireless configurable sensor interfaces, and the...
Relay Drivers
Terminal Input Modules
These small modules are provide completion resistors for resistive bridge measurements, voltage dividers, and precision current shunts. They attach directly to the datalogger's input terminals....
Miscellaneous Measurement and Control Peripherals
Measurement and Control Peripherals that don't quite fit into our other categories are included here.
Resources and Links
About Measurement & Control Peripherals
This family of peripherals expands the already formidable measurement and control capabilities of Campbell dataloggers.
Measurement peripherals are situated between the datalogger and its sensors, while control peripherals are situated between the datalogger and external device(s) under datalogger control.
Examples of measurement peripherals include vibrating wire interfaces, serial data interfaces, terminal input modules, and in most cases, multiplexers. Examples of control peripherals include relay drivers, some SDM peripherals, and occasionally, multiplexers. Some SDM devices can perform both measurement and control functions simultaneously.
As a group, these peripherals range from quite simple --- in the case of the precision resistor networks in our voltage dividers, to quite sophisticated --- in the case of SDM devices that have their own microprocessors and can perform measurement, control, and data processing functions independently of the connected datalogger.
In many cases, these devices increase the channel capacity of the dataloggers by allowing more sensors to be measured or more external devices to be controlled than is possible with the datalogger alone.
In some instances, the capabilities of the peripheral can provide additional capabilities to those available in the datalogger.
FAQs for
Our measurement and control peripherals, including SDMs, multiplexers, and Terminal Input Modules (TIMs), expand the measurement and control capabilities of the datalogger.
SDM is an acronym for Synchonous Device for Measurement. SDMs expand digital control ports, analog output ports, and measurement capabilities. They are addressable devices, allowing more than one to be connected to a datalogger at the same time.
A multiplexer allows switched excitation channels and analog inputs to be shared.?By using one channel to measure multiple sensors, the number of sensors that can be measured increases.
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