{"product_id":"universal-voltage-rate-sensor-interface-von-jayanth-kruttiventi","title":"Universal Voltage Rate Sensor Interface","description":"\u003cp\u003eAccurate prediction of heat flux is desired in many transient aerospace and heat treatment applications.  This is challenging since the heat flux¿temperature  integral relationship implicitly requires the time  derivative of experimentally obtained temperature  data. Noise in the temperature data  causes unbounded numerical derivatives with  increasing sampling rate. However, it has  theoretically been demonstrated that a stable and  accurate heat flux can be predicted using the time  derivative of temperature (dT\/dt) even in the  presence of significant white noise. This motivates  this work in developing a voltage¿rate sensor  interface for low-frequency applications in solid  heat conducting bodies. The present concept is to  amplitude modulate the voltage data and then  differentiate them at a higher frequency. The  voltage¿rate interface, which is used in conjunction  with an existing in situ temperature sensor, can  deliver real-time heating rate with improved SNR,  which is verified by both simulation and  experiments.  The SNR is also shown to improve with increasing  sampling rate, which is an advantage of this  interface.\u003c\/p\u003e\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9783838391663\"\u003e\u003ch3\u003eObtaining Time Derivative of Low Frequency signals with improved SNR\u003c\/h3\u003e\u003c\/div\u003e","brand":"Autorenwelt Shop","offers":[{"title":"Softcover - 9783838391663","offer_id":39469234815069,"sku":"9783838391663","price":49.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/3cfeed9a-ee9b-4c35-af44-2740b64b06d6.jpg?v=1769667406","url":"https:\/\/shop.autorenwelt.de\/products\/universal-voltage-rate-sensor-interface-von-jayanth-kruttiventi","provider":"Autorenwelt Shop","version":"1.0","type":"link"}