How popular is #photoplethysmography?

#photoplethysmography has no measured public activity on the open social web in the last 7 days. It is currently wide open.

What hashtags are related to #photoplethysmography?

No related hashtags with measured usage were found for #photoplethysmography.

How much does it cost to own #photoplethysmography?

#photoplethysmography is available as a #name from $5.00 per year. You can claim it by card at https://hashtag.orghttps://hashtag.space/checkout/portal-name?name=photoplethysmography or with tokens on hashtag.space at https://hashtag.space/#photoplethysmography.

#photoplethysmography

Name: #photoplethysmography — a #name on hashtag.org
Brand: hashtag.org
Price: 5.00 USD
Availability: InStock

Live, measured metrics for the hashtag #photoplethysmography from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.

hashtag.org network · sponsored

Own #photoplethysmography

This #name is available to claim. It becomes your portal on the open agent web: this very page, a keyword you rank for by an open public stake, and a verifiable identity for AI agents. Nobody else sells a page like this for every #name.

$5.00/ year · 20-character #name

Claim #photoplethysmography — $5.00/yr→Buy on hashtag.space (web3)

card via hashtag.org · tokens via hashtag.space

Uses / 7 days

Mastodon

Accounts / 7 days

Mastodon

Day-by-day usage

measured · mas.to (Mastodon public tags API) · fetched 2026-10-20 15:30 UTC

10-14

10-15

10-16

10-17

10-18

10-19

10-20

0 uses by 0 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.

Related hashtags

measured · mas.to (Mastodon public search API) · fetched 2026-10-20 15:30 UTC

No related tags with measured usage found for #photoplethysmography.

Live pulse

measured · mas.to (Mastodon tag timeline) · fetched 2026-10-20 15:30 UTC

Everything below is measured over the latest 7 public posts (spanning ~32784 hours).

Posting hours (UTC)

00:0012:0023:00

Languages: English (6) · German (1)

Avg boosts / post: 0

Used together with

#wearablehacks ×3 #swimming ×2 #machinelearning ×2 #heartrate ×2 #heart ×2 #technology ×2 #wirelesspowertransfer ×2 #empatica ×2 #fitbit ×2 #ppg ×2 #koreannationalpoliceagency ×1 #deepfakedetectiontechnology ×1

What “photoplethysmography” means

Wikipedia

A photoplethysmogram (PPG) is an optically obtained plethysmogram that can be used to detect blood volume changes in the microvascular bed of tissue. A PPG is often obtained by using a pulse oximeter which illuminates the skin and measures changes in light absorption. A conventional pulse oximeter monitors the perfusion of blood to the dermis and subcutaneous tissue of the skin.

“Photoplethysmogram” on Wikipedia (CC BY-SA) →