Phidget FrequencyCounter
Description
Measures the frequency of a signal and powers small devices like Hall Effect sensors, flow rate sensors, and tachometers.
The 1054 - PhidgetFrequencyCounter is designed to count events from an analog signal over time and calculate a frequency from it. The product can count a logic level or signal centered around zero volts. Signals with a different ground can be counted, provided they are within the common mode range (+-10V).
The Frequency Counter can also power small devices, such as Hall Effect, flow rate sensors, tachometers, and other sensors.
The PhidgetFrequencyCounter contains two channels to sense two different inputs. Each channel has two different circuits to sense for logic level-frequencies or zero-centered frequencies. The measurable frequency is accurate to 0.25% up to 1MHz. The Frequency Counter may measure frequencies past 1 Mhz, but the input voltage specifications will not hold.
The PhidgetFrequencyCounter can measure frequencies down to ~ 0.01Hz. However the response time of these measurements is directly related to the frequency, thus it could take 1 or 2 periods(100-200s) to detect the input frequency.
Product Specifications
| FrequencyCounter Input | |
|---|---|
| API Object Name | FrequencyCounter |
| Controlled By | USB (Mini-USB) |
| Number of Channels | 2 |
| Frequency Error Max | 0.25 % |
| Input Frequency Max | 1 MHz |
| Frequency Input Voltage Max | ± 20 V DC |
| Amplitude Min (Zero-Centered Input) | 110 mV DC |
| Hysteresis (Zero-Centered Input) | ± 30 mV DC |
| Ground Offset Min | -6.3 V DC |
| Ground Offset Max | 10.3 V DC |
| Low Voltage Max (False) | 800 mV DC |
| High Voltage Min (True) | 3 V DC |
| Electrical Properties | |
| USB Voltage Min | 4.8 V DC |
| USB Voltage Max | 5.3 V DC |
| USB Speed | Full Speed |
| Current Consumption Max | 42 mA |
| Available External Current | 450 mA |
| Input Impedance | (30pF) 332 kΩ |
| Physical Properties | |
| Recommended Wire Size | 16 - 26 AWG |
| Operating Temperature Min | 0 °C |
| Operating Temperature Max | 70 °C |
Documents
Library & Driver Downloads
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