TEST CIRCUIT

ENVIRONMENTAL CHARACTERISTICS

1. Sound pressure level and sensitivity shall not change by more than 15dB in temperature range of -20°C

to 60°C, at a relative humidity of 30%.

2. Sound pressure level and sensitivity shall not change by more than 6dB in the humidity of 10% to 90%, at

the temperature of 25° .

3. MOISTURE

Keep the sensor at 40°C±2°C and 90°C to 95°C R.H for 96±4 hours. Then, release the sensor into the room conditions for 24 hour prior to the measurement. It shall fulfill the specifications in Table 1.

4. VIBRATION

Subject the sensor to the vibration for 1 hour each in the X.Y and Z axes with the amplitude of 1.5mm

at 10 to 55 Hz. It shall fulfill the specifications in Table 1.

5. HIGH TEMPERATURE EXPOSURE

Subject the sensor to 80±5°C for 24± 1 hours. then, release the sensor into the room conditions for 1 hour prior to the measurement. It shall meet the specifications in Table 1.

4.6 LOW TEMPERATURE EXPOSURE

Subject the sensor to -30±5°C for 24± 1 hours. Then release the sensor into the room conditions for 1 hour prior to the measurement. It shall meet the specifications in Table 1.

TABLE 1

TaiMi Electronics Technology Co.,ltd.Specialize in manufacturing & exporting of electronic Components,Pressure sensor,Flow senosr,Piezo ceramic,transduucer,,and Ultrasonic Sensors of the finest quality.We are presently catering to Automotive,Defence, White Goods,Telecom,smart home,Robotics,model airplanes,Communications Industry.We have strong ability in designing new products as per customer's specification by full sets of tooling equipment and advanced test equipment,And professional RD team. We have been expanding our market in US,Europe,Middle East,and Southeast Asia.We have built impectable reputation and business relations with our customers all over the world. "Forever sincerity, practice and business prosperity" is our service concept.We hope to cooperate with all overseas partners.Let's do it better.