The YWBRIDG1 Yocto Bridge is a precision ratiometric analog/digital converter to measure over USB the very weak voltage produced by a load cell, as used in weighing scales, or any other type of strain sensor or other sensor with a Wheatstone bridge output.
The measure is performed by a 32 bit A/D with built-in preamplifier and FIR filter, which allows for a sensitiity of a few nV/V. The device includes a built-in temperature sensor, which can be internal or external NTC, to cancel temperature drift inherent to load cells, both in offset and span. The Yocto-Bridge can also apply AC excitation to cancel thermocouple effects, and perform zero tracking for simple applications where the measured signal frequently comes back to zero.
This version includes a single ratiometric inputs. If you intend to build a weighing scale with four load cells, you can use the Yocto-MaxiBridge instead, which includes four ratiometric inputs.
This device can be connected directly to an Ethernet network using a YoctoHub-Ethernet, to a WiFi network using a YoctoHub-Wireless-g, it can even be connected to a GSM network thanks to the YoctoHub-GSM.
USB cables and enclosure to be ordered separately.
Specifications of YWBRIDG1 Yocto Bridge
Refresh rate:2 or 7Hz
Excitation voltage:4.7V AC/DC
Normal operating temperature:5…40°C
Extended operating temperature:-30…85°C
Supported Operating Systems:Windows (PC + IoT), Linux (Intel + ARM), macOS, Android
Drivers:no driver needed
API / SDK / Libraries (USB+TCP):C++, Objective-C, C#, VB.NET, UWP, Delphi, Python, Java, Android
Harmonized tariff code:8542.3190