Comparing Seal Designs with Pressure Measurement

Measure pressure distribution and verify design specifications with I-Scan^® Pressure Measurement System.

Tactile Pressure Sensors for Seal Design Testing

Challenge: Compare two different rubber “dog seal” designs to determine which has better sealing performance along its perimeter.

Solution: The I-Scan pressure and force measurement system and 5101 sensor were used to measure the pressure distribution and pressure profile of two parts each with different seal designs. I-Scan was able to quickly and easily measure the differences between the two parts. The 2-D pressure display software feature clearly shows the low pressure regions and areas where gaps are present in one of the seal designs, allowing for quick assessment and comparison of both designs. The system provides users with immediate feedback on the effectiveness of a seal and the impact of adjusting a design or installation parameters; saving verification time and re-engineering costs.

I-Scan provides data in real-time. The 2-D or 3-D pressure displays can be used to compare designs during simulated operating conditions. Sensors are available in different shapes and pressure ranges, are reusable, and provide accurate pressure data. With the help of Tekscan’s highly qualified sales and engineering support team, each system can be configured to meet your specific needs.

doghouse seal pressure profile

Above: Results of comparing the sealing pressure pattern of two different “dog seal” designs. The 2-D pressure display reveals that Design A does not offer satisfactory sealing pressure around the entire perimeter of the part. A gap is present along the seal (the blank or white region) that will likely lead to leaks and poor performance. Design B provides a more even seal along the entire perimeter of the part, and therefore is the superior design.

Seal Design Pressure Measurement Applications

Research & Development
Reliability testing
Comparative testing
Design verification testing

Benefits of Pressure Mapping

Identify and troubleshoot leaks
Minimize validation time
Improve design

Typical Pressure Sensor Models used for Seal Pressure Evaluation

Sensor Model 5051

Sensing Area Total

Width Height Sensels Sensel Density

2.20 in. 2.20 in. 1,936 400.0 in.²

55.9 mm 55.9 mm 1,936 62.0 cm²
Sensor Model 5076

Sensing Area Total

Width Height Sensels Sensel Density

3.30 in. 3.30 in. 1,936 177.8 in.²

83.8 mm 83.8 mm 1,936 27.6 cm²
Sensor Model 5101

Sensing Area Total

Width Height Sensels Sensel Density

4.40 in. 4.40 in. 1,936 100.0 in.²

111.8 mm 111.8 mm 1,936 15.5 cm²

View all of Tekscan’s Pressure Sensors

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Sensing Area				Total
Width		Height		Sensels	Sensel Density
2.20	in.	2.20	in.	1,936	400.0	in.²
55.9	mm	55.9	mm	1,936	62.0	cm²

Comparing Seal Designs with Pressure Measurement

Tactile Pressure Sensors for Seal Design Testing

Seal Design Pressure Measurement Applications

Benefits of Pressure Mapping

Typical Pressure Sensor Models used for Seal Pressure Evaluation

I-Scan® System

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I-Scan^® System