400KHz Ultrasonic Sensor – Short Distance Measurement 6 cm – 30 cm
Characteristic:
● Solid package(Aluminum alloy shell)
● installation expediently
Application:
● Locating
● Flow measurement
● Approach measurement
● Traffic measurement
● Escaped obstruction
● Robot
Technical parameters:
| Model | Ultrasonic Distance Sensor TA0400KA |
|---|---|
| Center Resonant Frequency(kHz) | 400KHz |
| Bandwidth | ± 4% |
| Measure range | 0.06 – 0.3m |
| Blind zone | <0.06m |
| Resolution | 1mm |
| Launch Angle Beam(-3dB) | 7±2° |
| Electrostatic Capacitance | 130PF ± 20PF |
| Minimum Parallel Impedance | 800Ω ± 30% |
| Maximum Working Voltage(Pulse – 2% duty cycle) | 300Vp-p |
| Operating Temperature | -20 ~ 60℃ |
| Storage Temperature | -35 ~ 70℃ |
| Protection Level | IP65 |
| Size (diameter * height, mm) | φ10 x 7 |
| Signal interface | Outer Cylindrical fixed |
| Case Material | ABS or Aluminum alloy shell |
| Cable Length | 20cm (according to user’s requirement ) |
| Weight | 10g |
1. SCOPE
Ceramic Ultrasonic Distance Sensor TA0400KA , it is a transducer that could transmit and receive signals.
Ultrasonic transducers convert AC into ultrasound, as well as the reverse. Ultrasonics, typically refers to piezoelectric transducers or capacitive transducers. Piezoelectric crystals change size and shape when a voltage is applied; AC voltage makes them oscillate at the same frequency and produce ultrasonic sound. Capacitive transducers use electrostatic fields between a conductive diaphragm and a backing plate.
The beam pattern of a transducer can be determined by the active transducer area and shape, the ultrasound wavelength, and the sound velocity of the propagation medium. The diagrams show the sound fields of an unfocused and a focusing ultrasonic transducer in water, plainly at differing energy levels.
Since piezoelectric materials generate a voltage when force is applied to them, they can also work as ultrasonic detectors. Some systems use separate transmitters and receivers, while others combine both functions into a single piezoelectric transceiver.
Ultrasound transmitters can also use non-piezoelectric principles. such as magnetostriction. Materials with this property change size slightly when exposed to a magnetic field, and make practical transducers.
2. OUTLINE DIMENSIONS (UNIT: mm)
3. TEST CIRCUIT