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China Suppliers Factory Hydz 1007 40KHZ Aluminum Ultrasonic Transducer with High Sensitivity and Low Power Consumption
📋 Technical Terms
| No. | Item | Unit | Specification |
| 1 | Construction | Open | |
| 2 | Using Method | Transmitter / Receiver | |
| 3 | Nominal Frequency | Hz | 40 ± 1.5K |
| 4 | Sensitivity | ≥ -62V/u Mbar | |
| 5 | S P L | dB | ≥ 102 (10V / 30cm / sine wave) |
| 6 | Directivity | 100 ± 5 deg | |
| 7 | Capacitance | pF | 2000 ± 20% @ 1KHz |
| 8 | Allowable Input Voltage | Vp-p | 120 (40KHz) |
| 9 | Detectable Range | m | 10 |
| 10 | Operating Temperature | ℃ | -40 … +85 |
📐 Drawing (Mark: T = Transmitter, R = Receiver)
🔊 Introduction to Ultrasonic Sensors
Ultrasonic sensors are sensors developed using the characteristics of ultrasound. Ultrasonic sensors utilize the piezoelectric effect of piezoelectric ceramics. When an electric signal is applied to a piezoelectric ceramic plate, it will deform, causing the sensor to vibrate and emit ultrasonic waves. When ultrasound hits an obstacle, it reflects back and acts on the piezoelectric ceramic plate through the sensor. Based on the inverse piezoelectric effect, the ultrasound sensor generates an electrical signal output. By utilizing the principle of constant propagation speed of ultrasonic waves in the same medium, the distance between obstacles can be determined based on the time difference between transmitting and receiving signals. Ultrasonic waves will generate significant reflection echoes when they come into contact with impurities or interfaces, and Doppler effects when they come into contact with moving objects. Therefore, ultrasonic sensors are widely used in industries, civilian use, national defense, biomedicine, and other fields.
🚀 Applications
- Automotive anti-collision radar, ultrasonic ranging system, ultrasonic proximity switch
- Remote control devices for household appliances, toys, and other electronic devices
- Ultrasonic emission and reception devices for anti-theft and disaster prevention equipment
- Used to drive away mosquitoes, insects, animals, etc.
❓ Frequently Asked Questions (FAQ)
Q What is the nominal frequency of this ultrasonic sensor?
The nominal frequency of this ultrasonic sensor is 40 ± 1.5K Hz, which is the standard operating frequency for most short-to-mid range ultrasonic detection applications.
Q What is the maximum detectable range of this sensor?
The maximum detectable range of this ultrasonic sensor is 10 meters, making it suitable for applications such as automotive anti-collision systems and proximity detection.
Q What operating temperature range does this sensor support?
This sensor supports an operating temperature range of -40°C to +85°C, allowing it to perform reliably in both extreme cold and high-temperature environments.
Q How does an ultrasonic sensor measure distance?
The sensor emits ultrasonic waves via the transmitter. When these waves hit an obstacle, they reflect back to the receiver. By calculating the time difference between transmission and reception — combined with the constant propagation speed of ultrasound — the distance to the obstacle is accurately determined.
Q What are the main application fields of ultrasonic sensors?
Ultrasonic sensors are widely used across many fields including automotive anti-collision radar, industrial proximity switches, household appliance remote control, anti-theft and disaster prevention systems, and pest repelling devices.
Q What is the allowable input voltage for this ultrasonic sensor?
The allowable input voltage is 120 Vp-p at 40KHz. It is important not to exceed this voltage to ensure stable operation and to avoid damaging the piezoelectric ceramic element inside the sensor.