Ceramic Thick Film Pressure Sensors

Ceramic Thick Film Pressure Sensors, also called Thick Film Ceramic Pressure Sensors, are devices used to measure pressure changes by employing thick film technology on ceramic substrates, where conductive and resistive materials are printed onto the ceramic surface, enabling accurate pressure measurements through the piezoresistive effect, which causes mechanical deformation of the ceramic substrate, altering the spacing between conductive particles and leading to a shift in electrical resistance that is converted into an electrical signal corresponding to the applied pressure.

Ceramic Thick Film Pressure Sensors are produced by first preparing a ceramic substrate, which forms the base of the sensor. A thick film of conductive and resistive materials is then applied to the ceramic surface through a printing process. The precise application of these materials is crucial for ensuring the sensor's performance. Once the thick film is applied, the sensor undergoes a curing process to solidify the materials. Additional assembly steps may involve integrating components such as a diaphragm or electrical connectors. This manufacturing process ensures that the sensors are both highly accurate and reliable, suited for demanding applications.

Ceramic Thick Film Pressure Sensors are known for their accuracy, reliability, and ability to operate in harsh environments, such as extreme temperatures and humidity. They are also cost-effective, making them ideal for applications that require both high performance and affordability. Their design flexibility allows for customization to meet specific pressure measurement requirements. These sensors offer excellent long-term stability, corrosion resistance, and robustness, ensuring they remain reliable over extended periods and in challenging conditions.

Thick Film Ceramic Pressure Sensors are widely used across several industries, including automotive, industrial, medical, and consumer electronics. In automotive applications, they are typically used for monitoring tire pressure or fluid levels, while in industrial applications, they measure pressure in hydraulic and pneumatic systems. In the medical field, these sensors are used for blood pressure monitoring and respiratory systems. Their versatility and reliability make them essential components in various devices that require precise and durable pressure sensing.

Applications of Ceramic Thick Film Pressure Sensors :

Ceramic Thick Film Pressure Sensors find application in various industries and environments where accurate pressure measurement is crucial, Some common applications include:

● Automotive Industry: Used in automotive systems for measuring manifold pressure, tire pressure, and other critical pressure parameters.

● Industrial Processes: Monitoring pressure in industrial equipment and machinery to ensure operational efficiency and safety.

● Medical Devices: Integrated into medical instruments for monitoring blood pressure, respiratory systems, and other medical applications.

● Consumer Electronics: Found in consumer devices like smart appliances, air pressure monitors, and wearables for health monitoring.

● Environmental Monitoring: Used in weather stations, HVAC systems, and environmental monitoring equipment to measure atmospheric pressure.

Advantages of Ceramic Thick Film Pressure Sensors :

● Cost-Effectiveness: Ceramic Thick Film Pressure Sensors are more affordable than other pressure sensor technologies due to their simple design and manufacturing process.

● Chemical and Abrasion Resistance: Their robust nature makes them suitable for challenging environments, including those with abrasive particles.

● Compact and Hygienic: The lack of oil-filled seals or complex internal components makes them easy to clean and compact.

● Non-Metallic: Ceramic Thick Film Pressure Sensors are suitable for applications where metallic components are not desirable.

● High-Temperature Tolerance: Ceramic Thick Film Pressure Sensors can operate in high-temperature environments, which is crucial for certain industrial applications.

● Long-term Stability: Ceramic Thick Film Pressure Sensors exhibit long-term stability and reliability, making them a preferred choice in various industries.

Why Deed to Customize Thick Film Ceramic Pressure Sensors ?

● Specialized Requirements: Different industries have unique operational requirements that may not be met by standard sensors. Customization allows for the creation of sensors that fit precisely into the application they are designed for, including specific pressure ranges, environmental conditions, and compatibility with certain chemicals or media.

● Enhanced Performance: Custom sensors can be engineered to offer improved performance characteristics such as higher sensitivity, accuracy, and stability over time and under varying temperatures. This can be particularly important for applications where the sensor's reliability is critical.

● Cost-Effectiveness: For small industries, the cost of production can be a significant factor. Customized thick film technology can offer a cost reduction in the final product compared to thin films technology, making it an attractive option for cost-sensitive applications.

● Durability and Longevity: Customizing the sensor can involve selecting materials and designs that enhance its durability and longevity, ensuring it can withstand the wear and tear of long-term use in harsh environments.

● Miniaturization: In some applications, the size and form factor of the sensor are critical. Customization allows for the development of miniature sensors that can be integrated into compact systems without compromising on functionality.

● Low Energy Consumption: In systems that require energy autonomy, such as those employing energy harvesting or storage, low energy consumption components are essential. Customizing the sensor to be energy-efficient can help in achieving the overall system's energy management goals.

● Compatibility with Other Systems: Customized sensors can be designed to be compatible with existing systems or to interface with specific types of equipment, streamlining integration and reducing the need for additional adapters or modifications.

● High-Strength Substrates: For applications requiring high mechanical strength, sensors can be customized using substrates like zirconia-toughened alumina (ZTA), which offer better compatibility with thick-film resistors and improved thermal expansion matching compared to standard 96% alumina.

Thick Film Ceramic Pressure Sensors is driven by the need for specialized solutions that can meet the unique challenges posed by various applications, offering enhanced performance, cost-effectiveness, durability, and energy efficiency.

For more information, Please refer to Thick Film Sensors.

Specifications of Ceramic Thick Film Pressure Sensors :

Outer Diameter:	18mm * 6.35mm (Height)
Supply Voltage:	30Vdc, (Maximum)
Sensitivity:	3mV/v
Pressure Ranges:	2bar, 5bar, 10bar, 20bar, 40bar, 50bar, 100bar
Full Scale Output:	>2mV/N
Bridge Impedance:	10KΩ ±30%
Zero Point Offset:	<±0.2mV
Operating Temperature:	-40 up to +135°C
Repeatability:	≤±0.2%FS
Safe Overload Pressure:	≥2 times the full scale
Maximum Excitation Voltage:	30Vdc
Insulation Resistance:	≥ 2 KV
Relative Humidity:	0-99%
Temperature Drift (Zero Point & Sensitivity):	≤±0.03%FS/°C
Zero Point Long-term Stability at 20°C:	± 0.25% FS