ceramic capacitive pressure sensor

Ceramic Capacitive Pressure Sensor - Industrial Grade Precision Solution

Xi'an Qintai brings you enterprise-grade ceramic capacitive pressure sensor solutions engineered with high-purity Al2O3 ceramic diaphragms (96%-99.6% alumina content). Our dry-type pressure measurement devices deliver exceptional accuracy of ±0.1% full-scale, eliminating oil-leakage contamination risks common in traditional silicon-oil-filled sensors. With over 20 years of manufacturing excellence since 2001, we've achieved annual production capacity exceeding two million sensors. Our technology provides superior thermal stability, high overload resistance, and outstanding corrosion resistance for harsh chemical environments. As China's No.1 market leader and core supplier to Weichai Power, Yuchai Power, and Quanchai Power, we guarantee reliability backed by ISO9001, IATF16949, and 58 invention patents.

How Our Capacitive Pressure Sensors Work?

Understanding the innovation makes a difference you make educated choices. Our sensors work on a straightforward however advanced guideline that guarantees long-term reliability.

The ceramic stomach serves as a moving cathode that misshapes beneath connected weight. This stomach sets with a settled terminal on the ceramic substrate to shape a capacitor structure.

When weight changes, the diaphragm's misshapening changes the hole between anodes. This crevice alter specifically influences the capacitance esteem, which our progressed circuitry measures and changes over into exact electrical signals comparing to your weight readings.

This capacitance-based estimation kills numerous disappointment focuses found in other sensor advances. You get steady execution without the corruption issues related with resistive components.

Key Advantages You'll Appreciate

Media Separation & Chemical Resistance

Your applications request sensors that withstand unforgiving situations. Our item innovation gives total media confinement without silicon oil filling. This plan anticipates defilement and handles forceful chemicals that would erode routine sensors.

Exceptional Warm Stability

Temperature changes won't compromise your estimations. The ceramic development offers negligible warm float compared to metal stomach choices. You keep up precision over wide temperature ranges from -40°C to +150°C.

Superior Over-burden Protection

Pressure spikes happen in real-world applications. Our sensors endure over-burden conditions up to 3 times the evaluated weight without changeless harm or calibration float. This vigor decreases your support costs and downtime.

Long-Term Reliability

You require sensors that perform reliably year after year. The capacitance estimation rule and ceramic materials guarantee 10-15 a long time of steady operation. No moving parts wear out, and the dry development disposes of liquid debasement issues.

Technical Specifications

Parameter	Specification
Model	QS-P105F
Pressure Range	-1/0bar, 2bar, 5bar, 10bar, 20bar, 30bar, 40bar, 50bar, 80bar, 100bar, 200bar, 400bar, 600bar
Sensitivity	2...4.0mV/V
Non-linearity	0.3% FS
Zero Temperature Drift (2-50bar)	<0.03% FS/°C [0°C-85°C]; <0.04% FS/°C [-40°C-0°C]/[85°C-135°C]
Zero Temperature Drift (50-600bar)	<0.04% FS/°C [0°C-85°C]; <0.05% FS/°C [-40°C-0°C]/[85°C-135°C]
Zero Shift	<0.2 mV/V
Supply Voltage	2...30VDC
Zero Output	±0.2mV/V (23℃)
Safety Overload	200% FS
Comprehensive Accuracy	≤±0.5% FS
Material	96% Al2O3
Bridge Resistance	11±30% kΩ
Working Temperature	-40...135℃

Industry Applications

Automotive Systems

Your engine control and fuel systems require precision. We supply ceramic capacitive pressure sensor solutions for fuel pressure monitoring, engine management, and emission control systems. Our sensors meet stringent automotive standards for diesel SCR aftertreatment applications.

Mechanical Prepare Control

Manufacturing forms request dependable weight estimation. Utilize our sensors for pressure driven frameworks, pneumatic controls, and liquid weight observing where chemical compatibility is essential.

HVAC & Building Automation

Climate control frameworks advantage from our steady, drift-free estimations. Screen discuss weight in warming, ventilation, and conditioning frameworks with sensors planned for persistent operation.

Medical Equipment

Precision things in healthcare. Our capacitive weight transducers back blood weight checking and respiratory gadgets where exactness and security are vital.

Our Partners

We've built strong relationships with industry leaders who trust our technology. As the core supplier to China's top engine manufacturers including Weichai Power, Yuchai Power, and Quanchai Power, we hold the No.1 market position in China.

Our partnership approach means we work closely with you to understand your specific requirements. Whether you're an OEM seeking reliable components or an end-user needing custom solutions, we deliver.

Exhibition & Global Market Presence

You'll find Qintai at major international automotive and industrial exhibitions. We maintain active presence in global markets, showcasing our latest sensor innovations and connecting with customers worldwide.

Our 420-strong team, including 86 dedicated R&D technicians, continuously develops next-generation sensing solutions. We invest in innovation to keep you ahead of market demands.

Warehouse & Logistics

We get it that opportune conveyance keeps your generation running easily. Our distribution center offices stock ready-to-ship sensors to minimize your lead times.

With yearly generation capacity surpassing two million sensors, we scale to meet your volume prerequisites. Whether you require little clumps for prototyping or expansive generation runs, we keep up stock levels that bolster your schedule.

Our coordinations arrange guarantees effective shipping to household and universal goals. We accomplice with dependable carriers to provide your orders securely and on time.

Packaging & Shipment

Your sensors arrive ensured and prepared for integration. We utilize anti-static bundling that anticipates electrostatic harm amid travel. Each unit experiences quality assessment some time recently packing.

Standard bundling incorporates defensive froth padding and dampness obstructions. For worldwide shipments, we give export-grade bundling that withstands amplified transportation conditions.

Custom bundling arrangements are accessible for OEM clients who require particular labeling or introduction necessities. Fair let us know your inclinations.

Comprehensive OEM/ODM Services

Your item vision merits master back. We offer total OEM and ODM administrations from beginning concept through mass generation. Our autonomous R&D group collaborates with you to customize sensor determinations, lodging plans, and electrical interfaces.

Flexible Customization Options

Every application has special prerequisites. We back customization of weight ranges, yield signals, connector sorts, and mounting arrangements. Our designing group makes a difference you optimize sensor integration into your systems.

With IATF16949 certification and comprehensive quality administration, you get steady item quality clump after clump. We keep up strict prepare controls all through fabricating.

FAQ

What is a product?

A item is a high-precision estimation gadget utilizing high-purity Al2O3 ceramic stomachs as detecting components. It measures weight through capacitance changes between a settled anode and moving stomach anode, advertising prevalent chemical resistance and warm soundness compared to oil-filled alternatives.

How exact are these sensors?

Our capacitive weight sensors convey ±0.1% full-scale precision in most mechanical and car applications. Genuine exactness depends on your particular working conditions and calibration necessities, but the ceramic innovation gives extraordinary exactness and stability.

What is the ordinary lifespan?

You can anticipate 10-15 a long time or longer with appropriate establishment and utilize. Life expectancy changes based on working environment, temperature extremes, chemical introduction, and weight cycling recurrence. The dry ceramic development disposes of common disappointment modes of fluid-filled sensors.

Can these sensors handle cruel chemicals?

Absolutely. The ceramic development stands up to erosion from forceful chemicals, oils, and powers. This makes them perfect for car fuel frameworks, mechanical chemical preparing, and any application where media compatibility is critical.

Do you offer custom specifications?

Yes, we give comprehensive customization administrations. Our designing group works with you to adjust weight ranges, electrical yields, mounting setups, and natural appraisals to coordinate your correct requirements.

What certifications do your sensors carry?

Our items are made beneath ISO9001 and IATF16949 quality frameworks. We hold CMC, Ex, UL, CE, REACH, and RoHS certifications. With 58 innovation licenses, we combine certified quality with imaginative innovation.

Contact Us for Your Pressure Sensing Solutions

Ready to enhance your pressure measurement reliability with ceramic capacitive pressure sensor? Reach us at info@qt-sensor.com for detailed specifications, custom quotes, or technical consultation today.