What is Transmission Voltage?

It refers to the adjustable range of output voltage when the pulser receiver transmits the pulse signals.YUSHI PR10 Ultrasonic Pulse Receiver's transmit voltage range is 60V-200V, 8 levels adjustable.

Practical Importance:

Signal Strength Control: the higher the transmit voltage, the stronger the pulse signal energy and the longer the transmission distance (e.g. in ultrasonic detection, radar or communication scenarios), but too high a voltage may increase power consumption or cause damage to the load (e.g. transducer).

Scenario Adaptation: Different scenarios require different signal strengths, e.g. industrial inspection may require a high voltage (e.g. 200V) to penetrate the medium, while short distance communication may use a low voltage (e.g. 60V) to reduce energy consumption.

What is External Trigger Voltage?

It refers to the value of the power supply voltage required that can make the pulser receiver to receive the external signal.YUSHI PR10 Ultrasonic Pulser Receiver's external trigger voltage is 3.3V.

Practical Importance:

Trigger Signal Level Standard: 3.3V is a common low level standard in digital circuits (e.g., TTL/CMOS level), which is used for external controllers (e.g., MCUs, FPGAs) to send trigger signals (e.g., rising edges or high levels) to the pulse generating receivers to initiate transmitting or receiving operations.

Compatibility Design: adapts to the output level of mainstream digital chips to ensure that external trigger signals can be reliably recognized by the device (e.g., the device is triggered to operate when the external device outputs a 3.3V high level).

The Differences Between Transmission Voltage and External Trigger Voltage

The Relevance of Both

1. The external trigger power supply (3.3V signal) is the "control terminal" that outputs a pulse signal according to the set transmit voltage range (60V-200V) only when the device receives a trigger signal that meets the 3.3V level standard. Example: External MCU outputs a 3.3V high-level trigger signal → Pulse generator receiver is activated → Pulse is emitted at a certain set voltage (e.g., 100V)

       2.The level of the emitting voltage does not affect the level standard of the trigger power supply, but the 3.3V of the trigger power supply needs to be matched with the input impedance and threshold voltage of the internal trigger circuit of the device, so as to ensure that the trigger signal can effectively drive the emitting voltage generation.

       3.The higher the launch voltage, the greater the power consumption of the device; and the trigger power supply using a low voltage (3.3V), can reduce the power consumption of the control circuit, while avoiding high-voltage interference with the trigger signal circuit to protect the stability of the system.