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HMC03M Heated Humidity Sensor For Radiosondes And Weather Balloons

Post Date:

2018/12/03 17:21:01

Expired Date:

2019/03/03 23:59:59

Trade Leads Category:

Humidity Sensors

Company Info

Shenzhen Week Technology Ltd.
Contact Person: Yan Zhang
Address: 16 Floor, Building #3, Zhongke Mansion, Gaoxin South 1St Rd, Hi-Tech Park, Nanshan
State/Province: GUANGDONG
Country/Region: China (mainland)
Zip/Post Code: 518067


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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