Sr810 Lock In Amplifier Manual

The sr810 lock in amplifier and sr830 lock in amplifier are simple to use.

Sr810 lock in amplifier manual.

Current input or 10 volts amp. The sr810 lock in digital amplifier lida provides high performance at a reasonable cost. The instrument utilizes digital signal processing dsp to replace the demodulators output filters and amplifiers found in conventional lock ins. Simultaneously displays the magnitude and uses digital signal processing dsp to replace the demodulators output filters and amplifiers found in conventional lock ins.

Essentially a lock in is a filter with an arbitrarily narrow bandwidth which is tuned to the frequency of the signal. When the sr830 dis plays a magnitude of 1v rms the component of. All instrument functions are set from the front panel keypad and a spin knob is provided to quickly adjust parameters. Up to nine different instrument configurations can be stored in non volatile ram for fast and easy instrument setup.

Lock in amplifiers as a general rule display the input signal in volts rms. The heart of the sr810 and sr830 like any lock in amplifier is the demodulator which multiplies the input signal by the reference signal and filters the result. In this video i am talking about sr830 lock in amplifier which includes its principle and working. Sr810 dsp lock in amplifier 1 6 displays channel 1 4 1 2 digit led display with 40 segment led bar graph.

The demodulator of the sr810 and sr830 is a dsp processor capable of performing 16 million 24 bit multiplications and additions every second. Y via interface only. Y and q are available over the interface only offset x y and r may be offset up to 105 of full scale. X r x noise aux input 1 or 2.

The display can also be any of these quantities divided by aux input 1 or 2. The primary advantage that a lock in amplifier pro vides. Full scale sensitivity 2 nv to 1 v in a 1 2 5 10 sequence expand off. The sr830 simultaneously displays the magnitude and phase of a signal.

A lock in amplifier can make accurate measurements of small signals even when the signals are obscured by noise sources which may be a thousand times larger. Only inputs at frequencies at the reference frequency result in an output.