capacitor pressure sensor

Capacitor Pressure Sensor - Enterprise-Grade Precision for Critical Applications

Since 2001, Xi'an Qintai Automotive Emission Technology Co. Ltd has been manufacturing enterprise-grade capacitor pressure sensor solutions that deliver exceptional performance in demanding environments. Our sensors utilize advanced capacitive technology with flexible diaphragms and fixed substrates to achieve ultra-high precision measurements ranging from 1 bar to over 1,000 bar (14.5 to 14,500 psi). With superior thermal stability and signal-to-noise ratios, our products minimize long-term drift while maintaining remarkable sensitivity in ultra-low pressure ranges under 100 Pa.

As China's No. 1 market leader and core supplier to Weichai Power, Yuchai Power, and Quanchai Power, we produce over two million sensors annually. Our manufacturing facilities hold ISO9001, IATF16949, CMC, Ex, UL, CE, REACH, and RoHS certifications, backed by 58 invention patents and an 86-person R&D team dedicated to continuous innovation.

How Capacitor Pressure Sensors Work?

Our item innovation works through a advanced however dependable instrument. When weight is connected, the ceramic stomach distorts and changes the remove between anode plates. This variety modifies the capacitance esteem, which is at that point changed over into a exact electrical signal.

The ceramic stomach acts as one anode whereas the settled component shapes the capacitor structure. This plan guarantees estimations stay precise indeed in cruel mechanical situations with extraordinary temperatures or chemical exposure.

Unlike resistive sensors, our capacitive innovation offers lower control consumption—a basic advantage for battery-operated gadgets. You'll advantage from long-term steadiness and negligible float over the sensor's operational life.

Why Choose Qintai Capacitor Pressure Sensors?

Independent R&D Excellence

Our 86-person engineering team continuously innovates to enhance product performance. You'll receive cutting-edge solutions backed by 58 invention patents and decades of technical expertise.

China's Leading OEM Supplier

We've earned our No. 1 market position by delivering consistent quality to major power system manufacturers. When you partner with us, you access the same enterprise-grade components trusted by industry leaders.

Flexible Customization

Every application has unique requirements. We support comprehensive customization from pressure ranges to output specifications, ensuring our sensors integrate seamlessly into your systems.

OEM/ODM Services

Whether you need product modifications or complete design solutions, our team guides you from concept through mass production. We handle the technical complexity so you can focus on your core business.

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	<0.03% FS/°C (2bar~50bar, 0°C-85°C)
Supply Voltage	2...30VDC
Zero Output	±0.2mv/V (23℃)
Safety Overload	200% FS
Material	96% Al2O3 Ceramic
Bridge Resistance	11±30% kΩ
Working Temperature	-40°C to 135°C
Zero Shift	<0.2 mV/V

Key Applications

Automotive Industry

Our sensors excel in engine control systems where precision matters most. You can rely on them for fuel pressure monitoring and tire pressure monitoring systems (TPMS) that keep vehicles running safely and efficiently.

The automotive sector demands components that withstand vibration, temperature extremes, and long operational cycles. Our capacitor pressure sensor solutions meet these challenges consistently.

Industrial Process Control

Hydraulic systems and fluid pressure measurement applications benefit from our sensors' exceptional accuracy. Manufacturing facilities use our technology to maintain optimal process parameters and ensure product quality.

Your industrial operations will experience fewer failures and reduced downtime thanks to the robust ceramic construction and long-term reliability.

HVAC Systems

Air pressure monitoring in heating, ventilation, and air conditioning systems requires dependable sensors. Our capacitive technology provides the stability needed for climate control applications in commercial and residential buildings.

Medical Equipment

Blood pressure monitoring devices and respiratory equipment rely on precise measurements. Our sensors deliver the accuracy healthcare professionals trust while maintaining consistent performance throughout their service life.

Aerospace Applications

Barometric pressure measurement and fuel system monitoring in aerospace demand uncompromising quality. Our certified manufacturing processes and rigorous testing protocols ensure your critical systems operate flawlessly.

Consumer Electronics

From smartphone barometers to wearable fitness devices, our sensors enable the compact, energy-efficient designs modern consumers expect.

Certifications

Our Partners

We gladly serve as the center provider for China's driving control producers counting Weichai Control, Yuchai Control, and Quanchai Control. These associations illustrate our commitment to quality and unwavering quality at the most noteworthy industry levels.

Our worldwide client base ranges car, mechanical, restorative, and customer hardware divisions. You'll connect companies around the world that depend on Qintai for their basic detecting applications.

Exhibition & Global Market Presence

Qintai effectively partakes in major universal exchange appears and specialized conferences. We grandstand advancements at car expos, mechanical mechanization occasions, and sensor innovation symposiums over Asia, Europe, and North America.

Our growing worldwide impression incorporates dispersion systems and specialized bolster centers deliberately situated to serve clients productively. Wherever your operations are found, we're prepared to back your needs.

Warehouse & Logistics

With yearly generation capacity surpassing two million sensors, we keep up vigorous stock levels to fulfill orders expeditiously. Our stockroom administration frameworks track components and wrapped up items with precision.

We've optimized coordinations organizations to guarantee dependable, cost-effective shipping around the world. You'll get your sensors on plan, whether you're requesting model amounts or generation volumes.

Temperature-controlled capacity offices secure delicate components all through the fulfillment prepare. Each sensor keeps up its calibration and execution characteristics from our production line to your office.

Packaging & Shipment

We package sensors using industry-standard protective materials that prevent damage during transit. Electrostatic discharge protection, moisture barriers, and shock absorption ensure your products arrive in perfect condition.

Clear labeling and documentation accompany every shipment for easy identification and traceability. Our packaging team follows international shipping regulations to minimize customs delays.

For high-volume orders, we offer customized packaging solutions that integrate with your receiving and assembly processes. Streamlined unpacking saves your team time and reduces handling risks.

Frequently Asked Questions

What is a product?

A item is a high-precision transducer that changes over mechanical weight into electrical capacitance changes. It highlights a adaptable stomach and settled substrate shaping a variable capacitor where plate separate changes beneath connected pressure.

This innovation offers prevalent warm soundness and tall signal-to-noise proportions compared to resistive sensors. You'll encounter negligible long-term float indeed in unforgiving mechanical environments.

What weight ranges can ceramic capacitive sensors measure?

Our sensors degree weights from as moo as 1 bar (14.5 psi) to over 1,000 bar (14,500 psi). The particular extend depends on your application necessities and sensor plan configuration.

We back both low-pressure and high-pressure estimations with break even with exactness. Our building group can prescribe the ideal extend for your particular utilize case.

How long do ceramic capacitive weight sensors last?

With legitimate establishment and utilize, ceramic capacitive weight sensors regularly final 10-15 a long time or longer. Life expectancy depends on working environment variables counting temperature, mugginess, and chemical exposure.

Pressure cycling recurrence and mechanical stun too impact life span. Our strong ceramic development maximizes solidness over differing applications.

How does a ceramic capacitive weight sensor work?

The ceramic stomach misshapes when weight is connected, changing the separate between capacitor terminals. This misshapening changes capacitance values, which are measured and changed over into electrical signals comparing to connected pressure.

The stomach serves as one cathode whereas the settled component completes the capacitor structure. This exquisite plan conveys solid estimations all through the sensor's operational life.

What applications utilize ceramic capacitive weight sensors?

These sensors serve car motor control, fuel weight observing, TPMS, mechanical prepare control, pressure driven frameworks, HVAC discuss weight checking, restorative blood weight gadgets, respiratory gear, aviation barometric estimation, and shopper hardware barometers.

You'll discover our innovation wherever exact, dependable weight estimation is fundamental for security, proficiency, or execution.

Contact Us

Ready to enhance your systems with enterprise-grade capacitor pressure sensors? Our technical team is standing by to discuss your requirements. Email us at info@qt-sensor.com today and discover the Qintai difference.