Main Products: Gas Sensor ,Temperature Sensor ,Humidity Sensor ,Pressure Sensor ,Ultrasonic Sensor ,UV Sensor ,Wind Speed sensor ,Liquid Level Sensor
HMC03M Heated Humidity Sensor for Radiosondes and Weather Balloons
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Business Type: Distributor/Wholesaler
Shenzhen Guangdong ChinaMain Products: Gas Sensor ,Temperature Sensor ,Humidity Sensor ,Pressure Sensor ,Ultrasonic Sensor ,UV Sensor ,Wind Speed sensor ,Liquid Level SensorProduct Details
HMC03M Heated Humidity Sensor Description
HMC03M is optimized for short RH response time even at very low temperature in the upper atmosphere. It combines on a silicon substrate a capacitive relative humidity (RH) sensor and a heating resistor (heater).
The heater is dedicated for fast recovery of the humidity sensor after condensation or icing. The construction with the heater positioned all around the RH sensor grants uniform temperature throughout the HMC03M structure, which leads to outstanding measuring performance in high-end weather observation.
HMC03M Heated Humidity Sensor Features
• Very short RH response time at low T
• High sensitivity
• Fast recovery after condensation or icing due to sensor heating
• High accuracy thanks to outstanding T uniformity within HMC03M
HMC03M Heated Humidity Sensor Technical Data
| Humidity sensor | |
| Nominal capacitance C0 (at 30 °C / 86 °F ) | 120 ± 40 pF |
| Sensitivity | 0.41 pF / % RH |
| Working range | humidity: 0~100 % RH temperature: -80~60 °C (-112~140 °F) |
| Linearity error (0~98 % RH) | <± 2 % RH |
| Hysteresis | 1.9 ± 0.25 % RH |
| Temperature dependence | dC = -0.0014*RH*(T-30 °C) [pF] |
| Loss tangent | <0.05 |
| Supply voltage | 5 V max (UPP) |
| DC voltage | <5 mV |
| Operating frequency | 10 - 100 kHz, recommended 20 kHz |
| Heater (Molybdenum) | |
| Nominal resistance R0 | 100 ± 20 Ohm |
| Temperature coefficient | 3100 ± 150 ppm/K |
| Self heating coefficient (SHC), typical (at 980 hPa) 5 m/s 1 m/s 0.1 m/s | 0.11 K/mW 0.18 K/mW 0.39 K/mW |
| Max. power | 100 mW |
HMC03M Heated Humidity Sensor Ordering Guide
| Type | Packaging (tape and reel) | |
| HMC03M | 500 sensors | (TR0,5) |
| 1000 sensors | (TR1) | |
| 2500 sensors | (TR2,5) | |
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