WEBENCH® Thermocouple Sensor Designer

About WEBENCH Thermocouple Sensor Designer

WEBENCH Thermocouple Designer provides complete circuit solution for common thermocouple sensor applications. Start by selecting a thermocouple sensor from a list, or select a generic thermocouple type. WEBENCH Thermocouple Designer provides you with optimized signal path performance, bill of materials, budgetary cost, and links to evaluation boards and other tools for testing and validating your simulated solution.

Thermocouples are the most widely used temperature sensor in industrial applications. They can differ by type and come in variety of options like grounded, ungrounded, exposed tip, bare wire, beaded wire, surface probes, and other mechanical connections. Thermocouples are used in a variety of applications including high temperature furnace monitoring, gas temperature monitoring, water heaters, ovens, and temperature transmitters for process control applications.

The tool covers the most common thermocouple types, including Type E, Type J, Type T, Type K, Type N, Type R, Type S, and Type B thermocouples.

WEBENCH Thermocouple Designer provides a complete thermocouple to digital serial output solution, including sensor interface, cold junction temperature circuit, precision amplifier and filter, 8-bit through 12-bit ADCs, and a serialized output to connect to various back-end systems.





WEBENCH Thermocouple Sensor Designer Solutions


Example schematic: Thermocouple voltage amplified by differential
amplifier, driving single-ended ADC. Optional negative bias generator
and level-shift generator blocks are shown.

WEBENCH Thermocouple Sensor Designer solutions use either a noninverting amplifier; or a difference amplifier, depending on the amount of common-mode noise expected to be picked up by the circuit. (The pickup level is user-controlled.) A 2-channel single-ended ADC (8 to 12 bits) monitors the amplified thermocouple voltage, as well as the cold-junction temperature detected by an IC temperature sensor. If the sensed temperature range extends on both sides of the cold junction, a level shift generator circuit block is added. If the voltage produced by the thermocouple is lower than the common-mode input range of the amplifier, a negative bias generator circuit block is added.

Standard thermocouple products can be selected from a list, or a custom thermocouple can be "created" for use with the Designer.

Design Resources

Evaluation Boards

Thermocouple Sensor Designer Help

How to use this design tool:

1. Explore & Learn
Click the blue Start Design button for your desired sensor type and choose a pre-loaded sensor, or enter a custom sensor to meet your needs. Then click the 'Create Design' button.

2. Compare & Select
Review the resulting schematic, bill of materials, performance summary, and other technical results in the Design Summary overview. Click on any of the displayed panels to review more advanced or detailed information behind each panel. You can modify design parameters or further optimize your design by selecting a different sensor, amplifier, ADC, or other system parameters.

3. Design & Build
Print a report to document your design or order evaluation kits, and other tools in the Documentation panel. Furthermore, download applicable datasheets, application notes, and other design tips.

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Thermocouple Sensor Vendors

Omega

Tempco




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