سنسور و مبدل سنسور فراصوت (التراسونیک)

Product Attributes

Introduction

The CH101 is a miniature, ultra-low-power ultrasonic time-of-flight (ToF) ranging sensor. Based on Chirp's patented MEMS technology, the CH101 is a system-in-package product that integrates a PMUT (Piezoelectric Micromachined Ultrasonic Transducer) with an ultra-low-power SoC into a miniature, reflow-solderable package. The SoC runs Chirp's advanced ultrasonic DSP algorithms and contains an integrated microcontroller that provides digital distance readings via I²C.

Complementing Chirp's long-range CH201 ultrasonic ToF sensor product line, the CH101 provides accurate ranging to targets at distances up to 1.2 meters. The sensor employs ultrasonic measurement technology that operates under any lighting condition — from bright light to complete darkness — and delivers millimeter-accurate distance measurements unaffected by target color or optical transparency. The sensor's FoV is customizable, enabling simultaneous ranging of multiple objects within the field of view. Numerous algorithms can further process the distance information to address a wide variety of use cases across broad applications.

The CH101-00ABR is a pulse-echo product designed for ranging and presence detection applications that use a single sensor to both transmit and receive ultrasonic pulses. The CH101-02ABR is a frequency-matched pitch-catch product designed for applications that use one sensor to transmit and another to receive frequency-matched ultrasonic pulses.

Features

• Fast, accurate ranging
• Operating range from 4 cm to 1.2 m
• Sampling rate up to 100 samples/s
• RMS distance noise of 1.0 mm at 30 cm range
• Programmable modes optimized for short-to-medium range sensing applications
• Customizable FoV up to 180°
• Multi-target detection
• Operates in any lighting condition, from bright light to complete darkness
• Color-insensitive; detects optically transparent surfaces (e.g., glass, clear plastic)
• Easy integration
• Single-sensor transceiver
• Single 1.8 V supply
• I²C fast-mode compatible interface, data rate up to 400 kbps
• Dedicated programmable distance interrupt pin
• Platform-independent software driver for turnkey ranging
• Miniature integrated module
• 3.5 mm × 3.5 mm × 1.26 mm, 8-pin LGA package
• Compatible with standard SMD reflow soldering
• Low-power SoC running advanced ultrasonic firmware
• Operating temperature range: -40°C to 85°C
• Ultra-low supply current
  • 1 sample/s:
    • 13 μA at max ranging distance of 10 cm
    • 15 μA at max ranging distance of 1.0 m
  • 30 samples/s:
    • 20 μA at max ranging distance of 10 cm
    • 50 μA at max ranging distance of 1.0 m

Applications

• Augmented reality and virtual reality
• Robotics
• Obstacle avoidance
• Mobile and computing devices
• Proximity/presence detection
• Ultra-low power remote presence detection nodes
• Home/building automation