4MHZ ultrasonic transducer, ceramic piezoelectric sensor for heat
meter
Ultrasonic transducer application:
In addition to flow metering, the ultrasonic piezo transducer can
be used for liquid level measurement. These are mainly used in measuring applications, such as detection,
B-medical, beauty equipment, acoustic transducer, micro driven,
ultrasonic heat meter, water meter, welder, cleaner, ultrasonic
flowmeter, etc. The ultrasonic flow sensor measures liquid flow rate by
transmitting ultrasonic wave in the liquid medium.
Working principle of ultrasonic transducer:
The piezoelectric ultrasonic transducers are used in an ultrasonic
flow meter, it uses sound waves to determine the velocity of a
fluid flowing through a closed pipe, and its reflections from the
fluid are the same. The transmitter processes upstream and
downstream times to determine the flow rate.
What is it made of: ultrasonic sensor:
The ultrasonic transducer of high frequency, which is made up of an
active element, a backing, and wearplate. Its active element is a
piezoelectric or single crystal material which converts electrical
energy to ultrasonic energy. It will also then receives back
ultrasonic energy and converts it to electrical energy.
Product data sheet
| Technical parameters |
| Model | 17B | Center frequency | 975 + 30 KHz | Static capacity | 500 PF + 20% |
| Resonance impedance | <110 Ω | Protection | IP68 | Work temp. | < 90 ℃ |
| Pressure | >3.0 Mpa | Transmit beam angle | 5 – 10 | Receive sensitivity | >300 mv (half wave) |
| Housing material | SS304+polymer | Emit surface | Dia. 17 mm | Mounting surface | Dia. 21 mm |
| Seal | Epoxy encapsulation | Wiring | Center | Wire type | Dia. 2.5 mm dual core |
| Item 17SLW | Unit | Standard V | Item | Unit | Standard V |
| Center F(Fr) | KHz | 970±30 | Emit beam A | . | 5-10 |
| Resonant(R0) | Ω | <110Ω | Protection | | IP65 |
| Static C(CP) | pF | 900±20% | Pressure | MPa | ﹥2.6 |
| Receive sensitivity | mv | >280mv(half) | Wire lead way | mm | Center of sensor |
| Range | mm | | Seal | | Epoxy fill |
| Temperature | ℃ | <70° | Hole dia. | mm | Φ21 |
| Voltage | V | 3 | House material | | High molecular |
| NTC | 3950 10K 1% | | | |
Parameters
Different options:
