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| Ultrasonic Ranging Module Subsystems 型号:HL17- | 北京中西化玻公司 |
The Massa Ultrasonic Ranging Module is a precision electronic measurement device which includes an interface electronics moduleone or two ultrasonic transducers, depending on the model selected. The ranging module provides the OEM with a PWMLATCH output pulse, whose duration is proportional to the time required for the sound to travel between the transmitreceive transducers. The LATCH pulse width may be processed through additional circuitry for applications requiring position, level, profile, or thickness measurements. Internally or externally triggered, target distance ultimay limits the maximum pulse repetition rate. A maximum rate of 150 Hz is possible when targets are less than one foot distant; refer to individual module specifications for rep rate limits. For internal triggering, the pulse repetition rate is set via a single external resistor. The E-201B Series utilizes two transducers, one to transmitone to receive acoustic pulses. This arrangement allows them to be mounted side-by-side for an echo ranging application, or mounted opposing one another for high speed counting or accurate measurements at over twice the range possible with echo ranging. Two transducer echo-ranging configurations also provide shorter minimum target distances, required for certain applications. The E-220B Series utilizes a single transducer for both sendingreceiving acoustic pulses. This arrangement is ideal for applications where a limited area is available for mounting the sensor. Minimum target distance is slightly farther than two-transducer configurations. Optional transducer mounting brackets provide for easy adjustments to sensor alignment during installationhave been specifically designed to minimize crosstalk between paired transducers (E-201B). Request Massa''s Application Guide To Ultrasonic Sensing for a comprehensive review of application considerations. Applications Ultrasonic Micrometer Non-contact Profile Gauge Precision Limit Switch Thickness Unifomity Control Precision Proximity Detection High Speed Counting Features Remoy Mounted Sensors Resolution to +/- 0.010 inches Single Supply Operation Low Current Drain Internal or External Trigger Ultrasonic Ranging Module Product Selection Guide Individual Specifications Model Number E-201B/215 E-201B/150 E-220B/215 E-220B/150 E-220B/40 E-220B/26 Transducers Supplied Two Two One One One One Detection Range1 Echo Ranging Opposed Alignment2 3"-24" 3"-48" 5"-60" 5"-120" 4"-24" N/A 8"-60" N/A 2''-20'' N/A 2''-30'' N/A Resolution: Instantaneous3 Averaged4 0.03" 0.2% 0.04" 0.1% 0.03" 0.2% 0.04" 0.1% 0.3" 0.1% 0.4" 0.1% Beam Angle5,6 10 10 10 10 15,35 15,35 Transducer Frequency 215 kHz 150 kHz 215 kHz 150 kHz 40 kHz 26 kHz Maximum Pulse Rate 150 Hz 100 Hz 150 Hz 100 Hz 25 Hz 20 Hz Notes: 1- Nominal values at ambient temperature, pressurehumidity; 2- One transducer affixed to each of two objects, then aimed at each other; 3- Conservatively rated, improved dramatically with constant, controlled environment; 4- Percent of range; averaging processed externally, typically using a computer or PLC; 5- Total width at -3 dB points, no secondary lobes exist with /150 & /215 transducers; 6- Detachable horn supplied with /40 & /26 transducers provides smaller beam angle (required for maximum range). General Specifications Output Pulse Width (LATCH)1 Echo Ranging 147.5 usec per inch (or 1.77 msec per foot) of target distance Opposed Alignment 73.75 usec per inch (or 0.89 msec per foot) of sensor separation) External Trigger Pulse Width Optionally Required 180 +/- 10 uSec Digital Output (LATCH) Sink Current N-Channel MOSFET 30 mA @ Vds=0.5 V Voltage Requirements Limits Recommended 8 to 15 V DC 12 V DC Power Requirements (Nominal) 20 mA @ 8 V DC 30 mA @ 15 V DC 160 mW 450 mW Temperature Range2 Operating Storage 0 to 60 C -25 to 85 C Humidity Non-condensing 0 to 90% Transducer Construction Sealed Housing Standard Housing /215 & /150 Models /40 & /26 Models Weight Electronics & Transducers 4 to 8 oz. Transducer Cable Lengths With Connectors 2 ft., 6.5 ft. & 16 ft. Notes: 1- When ambient temperature is 20 C; 2- When ambient temperature exceeds 50 C, E-220B series modules operating at 12 V DC input will require a 75 kOhm resistor between the TRIG INGND pins. Minimum sensing range will increase (move out) by approximay 5%. Please contact factory for additional information. Ordering Information Specify the part number which corresponds to both the model numbertransducer cable length desired. Specify the optional mounting bracket part number as listed for each model number. Model Number 2 ft. Cable 6.5 ft. Cable 16 ft. cable Mounting Bracket E-201B/215 200344-501 200344-502 200344-503 200359-1 E-201B/150 200343-501 200343-502 200343-503 200362-1 E-220B/215 200374-501 200374-502 200374-503 200358-3 E-220B/150 200373-501 200373-502 200373-503 200358-2 E-220B/40 200355-502 200355-505 200355-506 200358-1 E-220B/26 200355-501 200355-503 200355-504 200358-1 Functional Block Diagrams Timing Diagram Circuit Connections Physical Dimensions Mounting Brackets Transducers Electronics | 产品图片 |
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