Humidity sensor detection

The humidity sensor detection and calibration have been favored by provincial and municipal metrology institutes such as Chengdu Institute of Metrology. Below is a detailed explanation of the origin of this instrument. The product is widely used for temperature and humidity measurement in industrial production, scientific experiments, inspection and testing, warehousing and other working environments. Its output signal is generally a DC signal of (4-20) mA or a voltage signal of (0-10) V. The transmitter calibration uses a high-precision temperature and humidity calibration box or generator as the temperature and humidity source, and a precision dew point meter as the standard. During calibration, it is necessary to first apply a 24V DC power supply to it, then measure its signal value with a high-precision voltage or ammeter, and manually calculate and record the temperature and humidity data. Only one signal can be measured at a time, and the instrument needs to be reconnected every time the detection signal is manually switched.

　　Humidity sensor detectionReceived favor from provincial and municipal metrology institutes such as Chengdu Institute of Metrology. Below is a detailed explanation of the origin of this instrument.The product is widely used for temperature and humidity measurement in industrial production, scientific experiments, inspection and testing, warehousing and other working environments. Its output signal is generally a DC signal of (4-20) mA or a voltage signal of (0-10) V. The transmitter calibration uses a high-precision temperature and humidity calibration box or generator as the temperature and humidity source, and a precision dew point meter as the standard. During calibration, it is necessary to first apply a 24V DC power supply to it, then measure its signal value with a high-precision voltage or ammeter, and manually calculate and record the temperature and humidity data. Only one signal can be measured at a time, and the instrument needs to be reconnected every time the detection signal is manually switched.

The system is based on ARM as the core. After the power supply of the ARM controlled transmitter is turned on, the signal is automatically switched to the corresponding signal conditioning circuit according to its output signal type. The analog switch inputs the signal into the A/D converter under the control of ARM, converts the analog signal into a digital signal, and then uploads it to the upper computer for processing through a wireless module.
The product is widely used for temperature and humidity measurement in industrial production, scientific experiments, inspection and testing, warehousing and other working environments. Its output signal is generally a DC signal of (4-20) mA or a voltage signal of (0-10) V. The transmitter calibration uses a high-precision temperature and humidity calibration box or generator as the temperature and humidity source, and a precision dew point meter as the standard. During calibration, it is necessary to first apply a 24V DC power supply to it, then measure its signal value with a high-precision voltage or ammeter, and manually calculate and record the temperature and humidity data. Only one signal can be measured at a time, and the instrument needs to be reconnected every time the detection signal is manually switched.
At present,Humidity sensor detectionApplied to provincial and municipal metrology institutes such as Chengdu Institute of Metrology; The four instruments are widely used in many private metrology and testing companies. In terms of practical application, in the field of industrial production, Xinyuan Instrument has achieved measurement and measurement in various aspects such as scientific research and design trial production, raw material inspection, process technology detection and control, material batching energy measurement, and finished product factory inspection, ensuring that product production monitoring is always in good condition.