When you need reliable pressure monitoring solutions, our variable capacitance pressure sensor delivers enterprise-grade performance backed by 23 years of manufacturing expertise. Built on advanced capacitance technology, this sensor measures pressure from 1 bar to over 1,000 bar with exceptional accuracy. The ceramic diaphragm deforms in response to applied pressure, creating measurable capacitance changes between electrodes that translate into precise electrical signals. With near-zero hysteresis, exceptional thermal stability, and a proven lifespan of 10–15 years, you get industrial durability that outperforms traditional strain gauges. Our sensors are trusted by China's top engine manufacturers, including Weichai Power, Yuchai Power, and Quanchai Power, where precision isn't optional—it's essential.
| 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 (2-50bar, 0-85°C) <0.04% FS/°C (-40-0°C/85-135°C) <0.04% FS/°C (50-600bar, 0-85°C) <0.05% FS/°C (-40-0°C/85-135°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°C to 135°C |
The center of this weight transducer depends on a advanced however exquisite rule. A ceramic stomach serves as one anode, whereas a settled cathode makes a capacitor combine. When weight is connected to your framework, the stomach avoids slightly.
This distortion changes the remove between the cathodes, straightforwardly modifying the capacitance esteem concurring to the equation C = ε(A/d). Your item at that point changes over this capacitance alter into a quantifiable electrical flag that precisely speaks to the connected pressure.
This innovation understands basic challenges you confront in mechanical situations. Not at all like piezoresistive sensors with constrained low-pressure affectability, capacitive sensors exceed expectations at ultra-low weight discovery. They expend negligible power—perfect for your battery-operated farther checking applications.
Our 86-strong R&D group ceaselessly innovates to upgrade sensor execution and unwavering quality. With 58 development licenses connected, we do not fair take after industry standards—we offer assistance set them. Your particular application challenges drive our improvement priorities.
We're not fair another producer. As the center provider to Weichai Control, Yuchai Control, and Quanchai Control, we hold the No. 1 showcase share in China's commercial vehicle sensor advertise. When the industry's most requesting clients believe us, you can too.
Whether you require standard determinations or custom arrangements, our full-service approach covers you from beginning plan through mass generation. We offer adaptable item customization custom fitted to your particular applications and operational requirements.
Every mechanical application presents special challenges. Our building group works specifically with you to adjust weight ranges, yield signals, lodging materials, and electrical associations to coordinate your correct specifications.
Automotive Frameworks: Motor control modules, fuel weight observing, and tire weight checking frameworks (TPMS) advantage from the exactness and strength of capacitive weight transducers.
Industrial Handle Control: Water powered frameworks, liquid weight estimation, and prepare computerization depend on long-term flag astuteness and negligible drift.
HVAC Frameworks: Discuss weight checking in warming, ventilation, and discuss conditioning applications requires sensors that keep up exactness over temperature variations.
Medical Gadgets: Blood weight observing and respiratory gear request the unwavering quality and accuracy that ceramic capacitive sensors provide.
Aerospace Applications: Barometric weight estimation and fuel framework observing in requesting situations where disappointment isn't an option.
Consumer Hardware: Indicators in smartphones and wearable gadgets use the moo control utilization of capacitance-based detecting.


We gladly serve driving producers over car, mechanical, and innovation divisions. Our organization approach implies we ended up an expansion of your designing group. Major control framework producers depend on our sensors for their most basic applications, and we're prepared to bring that same commitment to your ventures.

Qintai effectively partakes in universal exchange shows and car innovation gatherings around the world. Our worldwide nearness expands over Asia, Europe, and North America, guaranteeing responsive specialized back wherever you work. We keep up near connections with wholesalers and accomplices who get it neighborhood showcase necessities.

With an yearly generation capacity surpassing two million sensors, we keep up key stock levels to back your just-in-time fabricating needs. Our warehousing offices guarantee speedy arrange fulfillment, whereas our coordinations organizations ensure dependable conveyance plans. We get it that generation delays fetched you money—our supply chain is planned to keep your operations running easily.

Every sensor leaves our facility with protective packaging designed for industrial shipment. We use anti-static materials, moisture barriers, and shock-resistant containers to ensure your variable capacitance pressure sensor arrives in perfect condition. Whether you order 100 units or 10,000, we maintain the same rigorous packaging standards.
Our shipping documentation includes full traceability information, compliance certificates, and technical specifications. International shipments include all necessary export documentation to streamline customs clearance.

Q: What makes the items superior than piezoresistive types?
A: Capacitive sensors offer near-zero hysteresis, remarkable warm solidness, and prevalent execution in ultra-low weight applications. They too expend less control, making them perfect for battery-operated systems.
Q: Can you customize sensors for specialized weight ranges?
A: Completely. Our building group frequently creates custom arrangements custom-made to particular weight ranges, working temperatures, and yield necessities. Contact us at info@qt-sensor.com to talk about your needs.
Q: How do I guarantee legitimate establishment and calibration?
A: We give comprehensive specialized documentation with each arrange, counting establishment rules and calibration methods. Our specialized back group is accessible to help with integration challenges.
Q: What quality certifications do your sensors carry?
A: All our items comply with ISO9001, IATF16949, CMC, Ex, UL, CE, REACH, and RoHS benchmarks. We give certification documentation with each shipment.
Q: What's the normal lead time for standard orders?
A: Standard arrangements ordinarily dispatch inside 2-3 weeks. Custom arrangements require extra improvement time, which we'll talk about amid the venture arranging phase.
Q: Do you give specialized bolster after purchase?
A: Yes, comprehensive after-sales bolster is included. Our building group gives specialized help, investigating direction, and application bolster all through your item lifecycle.
Ready to upgrade your pressure monitoring systems with variable capacitance pressure sensor? Email us at info@qt-sensor.com for technical specifications, custom quotes, or partnership opportunities.
Our customers’ satisfaction speaks for our quality — contact us to experience the same reliable service.