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AN-000231

Document Number: AN-000231

Page 9 of 10

Revision: 1.0

For comparison, the pulse-echo beam-pattern plot measured for an EV_MOD_CH101 when tested without a sensor mounting plate is

shown in Figure 7. The beam pattern has three lobes: a main lobe and two side-lobes that are centered at ±45°. The sensor device will

work well for detecting on-axis targets, but targets located at ±25° will have approximately 70% lower (-10 dB) amplitude, possibly

resulting in poor range-finding performance.

Figure 7. Beam pattern measurements of an EV_MOD_CH101 (w/o a mounting plate)

(raw linear LSB units left, normalized dB right)

Содержание EV MOD CH101

Страница 1: ...pecifications and information herein without notice Chirp Microsystems 2560 Ninth Street Ste 200 Berkeley CA 94710 U S A 1 510 640 8155 www chirpmicro com Document Number AN 000231 Revision 1 0 Releas...

Страница 2: ...gure 1 View of EV_MOD_CH101 evaluation module with an omnidirectional acoustic housing 3 Figure 2 EV_MOD_CH101 Schematic 4 Figure 3 EV_MOD_CH101 Module Connection EV_MOD_CH101 acoustic port is facing...

Страница 3: ...ensor evaluation module The module board incorporates a CH101 Ultrasonic Sensor device with an omnidirectional acoustic housing assembly a capacitor and an FPC FFC connector This evaluation module can...

Страница 4: ...cteristics Please note that the datasheet covers CH101 part numbers with different suffixes Regardless the electrical specifications in the datasheet still apply 2 3 SCHEMATIC Electrical connection to...

Страница 5: ...MMENDED FLAT CABLE Molex 151660073 151660094 Table 2 Recommended Flat Flex Cable and Connector 2 4 BILL OF MATERIALS QUANTITY REFERENCE PART PCB FOOTPRINT MANUFACTURER MANUFACTURER PART NUMBER 1 PCB P...

Страница 6: ...3 1 CONFIGURATION AND PROGRAMMING Please refer to the following documents for configuration and programming information AN 000154 SmartSonic Hello Chirp Hands On Document AN 000175 SonicLib Programmer...

Страница 7: ...dth 8 15 mm Module height 3 57 mm Table 4 Geometric Dimensions for EV_MOD_CH101 The outer dimensions of the EV_MOD_CH101 assembly are shown in Figure 4 The acoustic port hole has a diameter of 0 7 mm...

Страница 8: ...pattern was measured by placing a 1m2 target at a 30 cm distance from the EV_MOD_CH101 module and recording the ToF amplitude as the sensor is rotated 180 The plots are shown in both raw LSB units and...

Страница 9: ...7 The beam pattern has three lobes a main lobe and two side lobes that are centered at 45 The sensor device will work well for detecting on axis targets but targets located at 25 will have approximate...

Страница 10: ...n the infringement of patents copyrights mask work and or other intellectual property rights Certain intellectual property owned by Chirp Microsystems and described in this document is patent protecte...