/6/2018 1046 User Guide - Phidgets Support PRODUCTS SUPPORT FORUMS Personal tools Products for USB Sensing and Control Search documentation Views View View source History More Tools What links here Printable version Page information Software Drivers Drivers Windows macOS Linux Phidget SBC Android iOS Languages Languages C C# Python https://www.phidgets.com/docs/1046_User_Guide#Measuring_Resistive_Thermal_Devices_.28RTD.
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1/6/2018 1046 User Guide - Phidgets Support 3.4 Measurement Considerations 3.5 Changing the Data Rate 3.6 Measuring Resistive Thermal Devices (RTD) 3.6.1 Using a Wheatstone Bridge 3.6.2 Using a Voltage Divider 3.6.3 Getting Higher Accuracy 4 What to do Next Getting Started Welcome to the 1046 user guide! In order to get started, make sure you have the following hardware on hand: 1046 PhidgetBridge USB cable and computer something to use with the 1046 (e.g.
1/6/2018 1046 User Guide - Phidgets Support Linux users can follow the getting started with Linux guide and continue reading here for more information about the 1046. First Look After plugging the 1046 into your computer and opening the Phidget Control Panel, you will see something like this: The Phidget Control Panel will list all connected Phidgets and associated objects, as well as the following information: Serial number: allows you to differentiate between similar Phidgets.
1/6/2018 1046 User Guide - Phidgets Support General information about the selected object will be displayed at the top of the window. You can also experiment with the following functionality: Modify the change trigger and/or data interval value by dragging the sliders. For more information on these settings, see the data interval/change trigger page. Toggle the Enable checkbox in order enable/disable the 1046. Select a gain from the Bridge Gain drop-down menu.
1/6/2018 1046 User Guide - Phidgets Support We report the measured voltage in a ratiometric unit known as V/V. This is how the maximum range of sensors that use strain gauges is usually specified. V/V is the output value in V of the measured sensor, scaled for a 1V sensor supply voltage. This value will correspond to the physical quantity that the sensor is measuring, regardless of the actual voltage supplied to the sensor. Gain Resolution Range 1 119 nV/V ± 1000 mV/V 8 14.
1/6/2018 1046 User Guide - Phidgets Support Each bridge input can be powered down, reducing power consumption with 1046 sensors, and useful for reducing heating of sensors, which can introduce errors. Changing the Data Rate Using a slower sampling rate will reduce the noise in the measurements dramatically. The noise figures are specific to individual applications and sensors. The lowest noise level achievable is 5nV/V RMS.
1/6/2018 1046 User Guide - Phidgets Support Where is the Bridge Value given by the PhidgetBridge (in mV/V) , and and are the resistances of the known resistors. This diagram illustrates how to connect the RTD to the PhidgetBridge with a voltage divider cirtuit. Getting Higher Accuracy In order to get the highest accuracy from the RTD, consider the following: Use resistors with a high degree of tolerance. There will be less variability in the manufacturing of 0.1% resistors when compared to 1% resistors.
1/6/2018 1046 User Guide - Phidgets Support This page was last modified on 28 November 2017, at 21:28. This work by Phidgets Inc., except where otherwise noted, is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License (Click the image on the right for more). https://www.phidgets.com/docs/1046_User_Guide#Measuring_Resistive_Thermal_Devices_.28RTD.
