Thermocouple Slip Ring and its Features


The thermocouple is used to measure the temperature accurately especially high temperature. It consists of circuits that have two wires. It is measured the temperature of electromotive force that induced when heat is applied in two different dissimilar metal wires that joined at the end. It is also used in refrigeration devices to make the temperature accurate according to the device.

It is a sensing element that is used to check the temperature. The working principle of the thermocouple is based on seeing back effects. Mostly industries needed to check and control the temperature of a heating axis and rotary furnace. So, the laboratory used thermocouple slip ring to test the new material properties.  They are usually used for rotating hardware for their simplicity and robustness. When you use thermocouple try to aware that the aluminum alloy doesn’t continue in the ring and the rotating junction is generated in which aluminum alloy are terminated to the slip ring. At the time of need noticed and record the data hence, you never check the room temperature. If you use the wrong slip ring so, the temperature changes the excess amount. This is the summary of years’ experience in uses thermocouple. The measurement instrument that is used to check the temperature included thermal resistance and thermocouple. It is two different components of conductors that are connected in the circuit. The thermocouple slip ring transmits thermocouple signals and measures the temperature. Thermocouple transmits signals in thermal electromotive signals that transfer the temperature through electric instruments.

Testing the temperature of thermocouple slip ring

The solution included carbon brush, gold fiber brush, gold wire contact, solution application depending upon customer’s application the high quality and dependableness. The basic of principle in testing the temperature is thermocouple slip ring that is made by two different elements, it has two existing temperature gap. The signals that transmit are pretty little but the precision is very high. The thermocouple has two ends with two elements in which the one is with high temperature and the second one is lower except one. Thermocouple measure the difference between rotating junction and hot junction. It is made an indexing table that gets free end temperature is equal to 0. But different types of thermocouple have a different indexing table. The conductors that are used to connect the return circuit when the temperature is changed. The junction of the thermocouple will emerge EMF; this is called thermo EMF. This thermal is produced to measure the principle and its one end is directly used to check the mid part of temperature, it is also called a measuring end and the second end is called compensation end or a cold end. The compensation end is connected with instruments that support the meter connection.

Basics of the thermocouple slip ring

It has conductor A and semiconductor B which is made of two different materials that are stick together. It has two different points that exists the temperature difference. Thermocouple produced electromotive elements that are known as thermoelectric effects. The thermocouple is used to effect on work.

The thermocouple has different advantages that are listed there

1-    Thermocouple slip ring is simple and easy to use

2-    It is composed of different threads (filaments)

3-    Thermocouple has directly measured the high accuracy.

The thermocouple has a low noise slip ring that transfers low-level EMF’s. This is compulsory to connect the sensor to rotating parts of the thermocouple. Plain copper wires are consisting on the output of slip ring. The low noise slip ring is produced to introduce the signal error less than five microvolts with rotational speed two thousand rpm. It is used the Sr2 in an isothermal environment that is connected with proper thermocouple leads which are attached to both ends. The wireless slip ring is transferred the microvolts signal that comes from the rotating assembly for your instrumentation.

The thermocouples slip ring specification mechanically and electronically

Mechanically features

1-    Operate in different positions

2-    Used vertically

3-    Small shaft used in the horizontal position

4-    Its speed is about 0 to 2000 rpm

5-    It is a sealed ball bearing

Electronically features

1-    Current is about 1.0 AMP Maximum

2-    Voltage is about 120 V Maximum

3-    Temperature is about -15 to 158 degree F

4-    Frequency dc to 10 MHz

Different types and structure of the thermocouple slip ring

The thermocouple is mainly used to divide two main objectives of a non-standard and standard thermocouple. The standard thermocouple has thermoelectric power and unified indexing table with temperature tolerance. On the other side non- standard thermocouple range is not enough extensive. It has no indexing table basically it is used to measure the special occasion. The thermocouple structure is dependable and stable work.  It has two electrodes that fix together the thermocouple. Its connection is convenient and reliable. The material and structure of thermocouple are different. It is included control parameters and requires that is used different slip ring material.

The thermocouple is the best measuring instrument that measures the temperature that can above 100 degrees. It is based on bared wires bead-probe that tests the surface and air temperature. Heater and oven are the examples of thermocouple wires. These two products are used in high temperature. It has a small piece of heat that keep safe the fiberglass from frying.

More Features

1-    Long as 3 feet

2-    Good up to 500 degree

3-    K thermocouple is with glass over braiding

4-    Colored coded wires

The specification of the thermocouple slip ring

1 Housing material Aluminum alloy / stainless steel
2 Dielectric strength 800 VDC AT 50 HZs
3 Toque 0.05 Nm, + 0.03 Nm/6 rings
4 Working lite > 100 million revolution
5 Insulation resistance 1000 Mat 600 VDC
6 Contact material Precious metal gold to gold
7 Contact resistance  <2mOhm
8 Operating temperature -40 degrees C to 200 degrees C
9 Lead wires UL Teflon at AWG 22, AWG 16, CAT 6
10 Lead length 300mm
11 Bearing Deep groove ball
12 Storage temperature -55 degrees C to 85 degrees C
13 Protection IP51


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