AIM Technology Inc.
Advanced Inprocess Monitoring Systems
Phone (215) 872-1692
This high temperature thermocouple assembly is enclosed in a high-purity alumina protection tube, while thermocouple elements are insulated by a double bore high purity alumina insulator, ideal for the monitoring and controlling of ambient, inert and vacuum furnaces.
As low as: $352
Visit our product catalog today for great deals on thermocouples, RTDs and thermocouple feedthroughs for a wide variety of temperature monitoring applications!
Contact us for quotes on custom designed temperature sensing products.
For a wide range of operating temperatures, quick response time and durable designs at an affordable price!
High accuracy and repeatability in temperature measurement for critical applications!
Easy installation and durable designs for furnace applications supporting up to 14 thermocouple pairs!
AIM temperature monitoring probes and sensor products provide accurate and reliable temperature monitoring and control for all of your process and environmental testing needs.
We offer standard and custom thermocouple and RTD probes as well as environmentally sealed and vacuum tight feedthroughs to meet the specific requirements of your application. Our temperature sensors feature straight, bent, and flexible rugged metallic protection tubes in a variety of materials including 304SS, 316SS, 310SS, 446SS, Inconel, and HR160. Base metal thermocouple types (J, K, T, E) utilize beaded ceramic insulating elements for a standard cost effective, yet durable assembly. High temperature thermocouple assemblies utilize ceramic protection tubes with noble metal thermocouple types (S, R, B). Protection tube materials include mullite, high purity alumina, and recrystallized silicon carbide for custom multi-tube assemblies. Double and triple tube designs are available for protection against thermal and mechanical shock. These units provide optimum performance at temperatures ranging from 1500ºF to 3100ºF. Our wide variety of protection tube materials insure resistance to corrosion in the harshest of environments.
What is a Thermocouple?
A thermocouple is a simple, mechanically robust, electrically versatile and inexpensive temperature sensor. Thermocouples can be used over a wide range of temperatures for monitoring and process control applications. A thermocouple consists of two dissimilar metal wires, joined at one end. When the joined end is heated there is a continuous flow of current. The net open circuit voltage (Seebeck voltage) is a function of the junction temperature and the composition of the two metals. As a result this means that when the junction of the two metals is heated, or cooled, a voltage is produced that can be correlated back to the temperature.
What is an RTD?
A Resistance Temperature Detector (RTD) is a device that contains an electrical resistance element, referred to as a “sensing element”, which changes its resistance value as its temperature changes. This change in electrical resistance with temperature can be measured and used to determine the temperature of a process or of a material. RTD sensing elements come in two basic styles, wire wound and film. Wire wound elements contain a length of very small diameter wire which is either wound into a coil and packaged inside a ceramic mandrel, or wound around the outside of a ceramic housing and coated with an insulating material. The film type sensing elements are made from a metal coated substrate that has a resistance pattern cut into it. This pattern acts as a long, flat conductor which provides a known electrical resistance. Lead wires are bonded to the metal coated substrate.
Benefits of Thermocouples vs. RTDs
Both types of temperature sensor have a particular set of operational and environmental conditions for which their use is best suited.
|Temperature Low||-210 °C||-240 °C|
|Response Time||Medium to Fast||Medium|
|Susceptible to Self-Heating?||No||Yes, Minimal|
|Signal Conditioning Requirements||Cold-Junction Compensation|
Open Thermocouple Detection
Lead Resistance Correction